Add pause in this code....help!!!!
hi everybody!!!
i'm writing code for up and down speed of song....
for play of song i write this code:
public function playMC(evt:MouseEvent):void
target= new ByteArray();
var url:URLRequest = new URLRequest("C://song.mp3");
mp3Start = new Sound();
mp3Start.addEventListener(Event.COMPLETE, complete);
mp3Start.load(url);
position = 0.0;
rate = 1.0;
sound = new Sound();
sound.addEventListener(SampleDataEvent.SAMPLE_DATA, sampleData);
public function complete(event:Event):void
channel = sound.play();
this code is good for only play and stop song....i want add pause song....how to do??
help me please!!!!
hi!!!
now i have another small problem...
i want add one timer ans progressBar...
for add time i write this:
public function getCurrentSong(evt:TimerEvent):void
currentSong.text = convertTimer(sound.position);
but don't go same time!!!!
and how to use the sliderBar or progressBar in this player???
help me please!!!!
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----CODE BEGIN ---------------
import java.io.IOException;
import java.io.PrintStream;
import java.util.Random;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
import javax.microedition.rms.RecordStore;
import javax.microedition.rms.RecordStoreException;
public class MobileGalaga extends MIDlet
implements CommandListener, Runnable
class ScoreScreen extends Canvas
public void paint(Graphics g)
g.setColor(0xffffff);
g.fillRect(0, 0, MobileGalaga.WIDTH, MobileGalaga.HEIGHT);
g.setColor(0x160291);
g.setFont(MobileGalaga.fs);
g.drawString("Help", MobileGalaga.CENTERW, 2, 17);
g.setColor(0);
g.drawString("Use left/right and fire", MobileGalaga.CENTERW, 20, 17);
g.drawString("to destory the", MobileGalaga.CENTERW, 30, 17);
g.drawString("incoming alien MobileGalaga", MobileGalaga.CENTERW, 40, 17);
public void keyPressed(int i)
int j = getGameAction(i);
if(j == 8)
display.setCurrent(titlescreen);
ScoreScreen()
class TitleScreen extends Canvas
public void paint(Graphics g)
g.setColor(0xffffff);
g.fillRect(0, 0, MobileGalaga.WIDTH, MobileGalaga.HEIGHT);
g.drawImage(MobileGalaga.logoimg, MobileGalaga.CENTERW, 15, 17);
g.setColor(0);
g.setFont(MobileGalaga.fs);
g.drawString("Press 5 to", MobileGalaga.CENTERW, 43, 17);
g.drawString("see help", MobileGalaga.CENTERW, 53, 17);
public void keyPressed(int i)
int j = getGameAction(i);
if(j == 8)
display.setCurrent(scorescreen);
TitleScreen()
class MainScreen extends Canvas
public void paint(Graphics g)
offg.setColor(0xffffff);
offg.fillRect(0, 0, MobileGalaga.WIDTH, MobileGalaga.HEIGHT);
for(int i = 0; i < MobileGalaga.slen; i++)
if(!MobileGalaga.dead)
offg.drawImage(MobileGalaga.alienimg[MobileGalaga.frame[i]], MobileGalaga.x[i], MobileGalaga.y[i], 17);
if(!MobileGalaga.playerdead)
offg.drawImage(MobileGalaga.playerimg, MobileGalaga.px, MobileGalaga.py, 17);
} else
if(MobileGalaga.explodeframe < 3)
offg.drawImage(MobileGalaga.explosionimg[MobileGalaga.explodeframe], MobileGalaga.px, MobileGalaga.py, 17);
MobileGalaga.explodeframe++;
if(!MobileGalaga.gameover)
MobileGalaga.playerpause++;
if(MobileGalaga.playerpause < 50)
MobileGalaga.playerpause++;
} else
MobileGalaga.playerdead = false;
MobileGalaga.playerpause = 0;
MobileGalaga.px = MobileGalaga.CENTERW;
offg.setColor(0);
offg.drawString(MobileGalaga.scorestr, MobileGalaga.WIDTH, 0, 24);
offg.drawImage(MobileGalaga.playerimg, 0, 0, 20);
offg.drawString(MobileGalaga.lives + "", 12, 0, 20);
if(MobileGalaga.laser)
offg.drawLine(MobileGalaga.laserx, MobileGalaga.lasery, MobileGalaga.laserx, MobileGalaga.lasery + 4);
if(MobileGalaga.showscores)
for(int j = 0; j < 5; j++)
if(j == MobileGalaga.rank)
offg.setColor(0xff0000);
else
offg.setColor(0);
offg.drawString((j + 1) + " .... " + getScoreStr(MobileGalaga.highscore[j]), MobileGalaga.CENTERW, 20 + j * 10, 17);
if(MobileGalaga.showmessage)
offg.setColor(0xff0000);
offg.drawString(MobileGalaga.msg, MobileGalaga.CENTERW, MobileGalaga.CENTERH, 17);
MobileGalaga.messagepause++;
if(MobileGalaga.messagepause > 20)
MobileGalaga.showmessage = false;
MobileGalaga.messagepause = 0;
if(MobileGalaga.gameover)
MobileGalaga.showscores = true;
else
if(MobileGalaga.wavecomplete)
initWave();
g.drawImage(offimg, 0, 0, 20);
public void keyPressed(int i)
int j = getGameAction(i);
if(j == 2)
MobileGalaga.playerLeft = true;
else
if(j == 5)
MobileGalaga.playerRight = true;
else
if(j == 8)
fireLaser();
public void keyReleased(int i)
int j = getGameAction(i);
if(j == 2)
MobileGalaga.playerLeft = false;
else
if(j == 5)
MobileGalaga.playerRight = false;
private Image offimg;
private Graphics offg;
public MainScreen()
offimg = Image.createImage(getWidth(), getHeight());
offg = offimg.getGraphics();
offg.setFont(MobileGalaga.fs);
public MobileGalaga()
rand = new Random();
display = Display.getDisplay(this);
mainscreen = new MainScreen();
titlescreen = new TitleScreen();
scorescreen = new ScoreScreen();
WIDTH = mainscreen.getWidth();
HEIGHT = mainscreen.getHeight();
CENTERW = WIDTH / 2;
CENTERH = HEIGHT / 2;
exitCommand = new Command("Exit", 7, 1);
playCommand = new Command("Play", 1, 1);
quitCommand = new Command("Quit", 1, 1);
againCommand = new Command("Again", 1, 1);
nullCommand = new Command("", 1, 1);
try
alienimg[0] = Image.createImage("/alien1.png");
alienimg[1] = Image.createImage("/alien2.png");
explosionimg[0] = Image.createImage("/explosion1.png");
explosionimg[1] = Image.createImage("/explosion2.png");
explosionimg[2] = Image.createImage("/explosion3.png");
playerimg = Image.createImage("/player.png");
logoimg = Image.createImage("/logo.png");
catch(IOException ioexception)
db("Couldn't get images!");
imgW = alienimg[0].getWidth();
imgH = alienimg[0].getHeight();
edgeH = imgW / 2;
edgeV = imgH / 2;
pimgW = playerimg.getWidth();
pimgH = playerimg.getHeight();
pedgeH = pimgW / 2;
pedgeV = pimgH / 2;
highscore = getHighScores();
public void run()
while(runner)
rp();
updatePos();
try
MobileGalaga _tmp = this;
Thread.sleep(75L);
catch(InterruptedException interruptedexception)
db("interrupted");
runner = false;
MobileGalaga _tmp1 = this;
Thread.yield();
public void startApp()
throws MIDletStateChangeException
display.setCurrent(titlescreen);
addBeginCommands(titlescreen, false);
addBeginCommands(scorescreen, false);
addPlayCommands(mainscreen, false);
public void pauseApp()
public void destroyApp(boolean flag)
runner = false;
th = null;
private void rp()
mainscreen.repaint();
private void startGame()
initGame();
if(th == null)
th = new Thread(this);
runner = true;
th.start();
private void initGame()
px = CENTERW;
py = HEIGHT - pedgeV - pimgH;
packcount = 0;
lives = 3;
score = 0;
scorestr = "000000";
rank = -1;
difficulty = 400;
wave = 1;
initWave();
private void initWave()
for(int i = 0; i < slen; i++)
frame[i] = i % 2;
x[i] = packX[i] = sposX[i];
y[i] = packY[i] = sposY[i];
dx[i] = packdx = alien_dx_right;
dy[i] = packdy = alien_dy_right;
dxcount[i] = dycount[i] = 0;
pmode[i] = 0;
flying[i] = false;
dead[i] = false;
playerLeft = false;
playerRight = false;
laser = false;
playerdead = false;
showscores = false;
showmessage = false;
gameover = false;
wavecomplete = false;
playerpause = 0;
messagepause = 0;
killed = 0;
private void updatePos()
if(playerLeft)
updatePlayerPos(-2);
else
if(playerRight)
updatePlayerPos(2);
fly = Math.abs(rand.nextInt() % difficulty);
if(fly < slen && !flying[fly] && !dead[fly])
if(x[fly] < CENTERW)
setDX(fly, alien_dx_flyright, 2);
setDY(fly, alien_dy_flyright, 2);
} else
setDX(fly, alien_dx_flyleft, 2);
setDY(fly, alien_dy_flyleft, 2);
flying[fly] = true;
for(int i = 0; i < slen; i++)
if(!dead[i])
if(!flying[i])
if(x[i] + edgeH + dx[i][dxcount[i]] > WIDTH)
changePackDir(alien_dx_left, alien_dy_left);
if((x[i] - edgeH) + dx[i][dxcount[i]] < 0)
changePackDir(alien_dx_right, alien_dy_right);
} else
if(y[i] + edgeV + dy[i][dycount[i]] > HEIGHT)
x[i] = packX[i];
y[i] = packY[i];
flying[i] = false;
setDX(i, packdx, 0);
setDY(i, packdy, 0);
if(!playerdead && y[i] <= py + pedgeV && y[i] >= py - pedgeV && x[i] <= px + pedgeH && x[i] >= px - pedgeH)
playerHit();
if(laser && lasery <= y[i] + edgeV && lasery >= y[i] - edgeV && laserx <= x[i] + edgeH && laserx >= x[i] - edgeH)
alienHit(i);
for(int j = 0; j < slen; j++)
if(!dead[j])
if(framecount == 3)
frame[j] = frame[j] + 1 < 2 ? 1 : 0;
lastx = x[j];
lasty = y[j];
x[j] += dx[j][dxcount[j]];
y[j] += dy[j][dycount[j]];
if(pmode[j] == 0)
dxcount[j] = dxcount[j] + 1 < dx[j].length ? dxcount[j] + 1 : 0;
dycount[j] = dycount[j] + 1 < dy[j].length ? dycount[j] + 1 : 0;
} else
if(pmode[j] == 2)
dxcount[j] = dxcount[j] + 1 < dx[j].length ? dxcount[j] + 1 : dxcount[j];
dycount[j] = dycount[j] + 1 < dy[j].length ? dycount[j] + 1 : dycount[j];
packX[j] += packdx[packcount];
packY[j] += packdy[packcount];
packcount = packcount + 1 < packlen ? packcount + 1 : 0;
framecount = framecount + 1 < 4 ? framecount + 1 : 0;
if(laser)
lasery -= 6;
if(lasery < 0)
laser = false;
private void setDX(int i, int ai[], int j)
if(i == -1)
for(int k = 0; k < slen; k++)
if(!flying[k])
dx[k] = ai;
dxcount[k] = 0;
pmode[k] = j;
} else
dx[i] = ai;
dxcount[i] = 0;
pmode[i] = j;
private void setDY(int i, int ai[], int j)
if(i == -1)
for(int k = 0; k < slen; k++)
if(!flying[k])
dy[k] = ai;
dycount[k] = 0;
pmode[k] = j;
} else
dy[i] = ai;
dycount[i] = 0;
pmode[i] = j;
private void changePackDir(int ai[], int ai1[])
setDX(-1, ai, 0);
setDY(-1, ai1, 0);
packdx = ai;
packdy = ai1;
packcount = 0;
private void updatePlayerPos(int i)
plastx = px;
px += i;
if(px + pedgeH > WIDTH || px - pedgeH < 0)
px = plastx;
private void fireLaser()
if(!laser)
laser = true;
laserx = px;
lasery = py;
private void alienHit(int i)
if(!playerdead)
dead[i] = true;
laser = false;
killed++;
if(flying[i])
score += 200;
else
score += 50;
if(killed == slen)
waveComplete();
scorestr = getScoreStr(score);
private void playerHit()
playerdead = true;
playerpause = 0;
explodeframe = 0;
lives--;
if(lives == 0)
gameOver();
private void waveComplete()
wavecomplete = true;
difficulty -= 100;
if(difficulty < 100)
difficulty = 100;
msg = "WAVE " + wave + " COMPLETE";
messagepause = 0;
showmessage = true;
wave++;
score += 1000 * wave;
scorestr = getScoreStr(score);
private void gameOver()
gameover = true;
msg = "GAME OVER";
for(int i = 0; i < 5; i++)
if(score < highscore[i])
continue;
for(int j = 4; j > i; j--)
highscore[j] = highscore[j - 1];
highscore[i] = score;
rank = i;
break;
setHighScores();
showmessage = true;
messagepause = 0;
addEndCommands(mainscreen, true);
private void addBeginCommands(Displayable displayable, boolean flag)
if(flag)
removeCommands();
displayable.addCommand(playCommand);
displayable.addCommand(exitCommand);
displayable.setCommandListener(this);
private void addPlayCommands(Displayable displayable, boolean flag)
if(flag)
removeCommands();
displayable.addCommand(nullCommand);
displayable.addCommand(quitCommand);
displayable.setCommandListener(this);
private void addEndCommands(Displayable displayable, boolean flag)
if(flag)
removeCommands();
displayable.addCommand(againCommand);
displayable.addCommand(quitCommand);
displayable.setCommandListener(this);
private void removeCommands()
Displayable displayable = display.getCurrent();
displayable.removeCommand(nullCommand);
displayable.removeCommand(quitCommand);
displayable.removeCommand(againCommand);
displayable.removeCommand(playCommand);
displayable.removeCommand(exitCommand);
public void commandAction(Command command, Displayable displayable)
if(command == playCommand)
display.setCurrent(mainscreen);
startGame();
if(command == quitCommand)
runner = false;
while(th.isAlive()) ;
th = null;
addPlayCommands(mainscreen, true);
display.setCurrent(titlescreen);
if(command == againCommand)
runner = false;
while(th.isAlive()) ;
th = null;
display.setCurrent(mainscreen);
addPlayCommands(mainscreen, true);
startGame();
if(command == exitCommand)
destroyApp(false);
notifyDestroyed();
private int[] getHighScores()
int ai[] = new int[5];
ai[0] = 5000;
ai[1] = 4000;
ai[2] = 3000;
ai[3] = 2000;
ai[4] = 1000;
byte abyte0[][] = new byte[5][6];
try
hsdata = RecordStore.openRecordStore("MobileGalaga", true);
int i = hsdata.getNumRecords();
if(i == 0)
for(int j = 0; j < 5; j++)
abyte0[j] = Integer.toString(ai[j]).getBytes();
hsdata.addRecord(abyte0[j], 0, abyte0[j].length);
} else
for(int k = 0; k < 5; k++)
abyte0[k] = hsdata.getRecord(k + 1);
String s = "";
for(int l = 0; l < abyte0[k].length; l++)
s = s + (char)abyte0[k][l] + "";
ai[k] = Integer.parseInt(s);
catch(RecordStoreException recordstoreexception)
db("problem with initialising highscore data\n" + recordstoreexception);
return ai;
private void setHighScores()
byte abyte0[][] = new byte[5][6];
try
hsdata = RecordStore.openRecordStore("MobileGalaga", true);
for(int i = 0; i < 5; i++)
abyte0[i] = Integer.toString(highscore[i]).getBytes();
hsdata.setRecord(i + 1, abyte0[i], 0, abyte0[i].length);
catch(RecordStoreException recordstoreexception)
db("problem with setting highscore data\n" + recordstoreexception);
private String getScoreStr(int i)
templen = 6 - (i + "").length();
tempstr = "";
for(int j = 0; j < templen; j++)
tempstr = tempstr + "0";
return tempstr + i;
public static void db(String s)
System.out.println(s);
public static void db(int i)
System.out.println(i + "");
private Display display;
private Command exitCommand;
private Command playCommand;
private Command quitCommand;
private Command againCommand;
private Command nullCommand;
private MainScreen mainscreen;
private TitleScreen titlescreen;
private ScoreScreen scorescreen;
private static int WIDTH;
private static int HEIGHT;
private static int CENTERW;
private static int CENTERH;
private boolean runner;
private Thread th;
private Random rand;
private static final int RED = 0xff0000;
private static final int ORANGE = 0xff9100;
private static final int YELLOW = 0xffff00;
private static final int WHITE = 0xffffff;
private static final int BLACK = 0;
private static final int BLUE = 0x160291;
private static Image alienimg[] = new Image[2];
private static Image explosionimg[] = new Image[3];
private static Image playerimg;
private static Image logoimg;
private static int imgH;
private static int imgW;
private static int pimgH;
private static int pimgW;
private static int edgeH;
private static int edgeV;
private static int pedgeH;
private static int pedgeV;
private static final Font fs = Font.getFont(64, 0, 8);
private static final Font fl = Font.getFont(64, 1, 16);
private static final int sposX[] = {
16, 28, 40, 52, 4, 16, 28, 40, 52, 64,
4, 16, 28, 40, 52, 64
private static final int sposY[] = {
14, 14, 14, 14, 26, 26, 26, 26, 26, 26,
38, 38, 38, 38, 38, 38
private static final int LOOP = 0;
private static final int ONCE = 1;
private static final int HOLD = 2;
private static final int move_none[] = {
0
private static final int alien_dx_right[] = {
1, 1, 1, 1, 1, 1, 1, 1
private static final int alien_dy_right[] = {
0, 0, 1, 1, 0, 0, -1, -1
private static final int alien_dx_left[] = {
-1, -1, -1, -1, -1, -1, -1, -1
private static final int alien_dy_left[] = {
0, 0, -1, -1, 0, 0, 1, 1
private static final int alien_dx_flyright[] = {
1, 1, 1, 0, -1, -1, -1, -1, -1, 0,
1, 1, 2, 3, 4, 5, 6
private static final int alien_dy_flyright[] = {
0, -1, -1, -1, -1, -1, 0, 1, 1, 1,
1, 1, 2, 3, 4, 5, 6
private static final int alien_dx_flyleft[] = {
-1, -1, -1, 0, 1, 1, 1, 1, 1, 0,
-1, -1, -2, -3, -4, -5, -6
private static final int alien_dy_flyleft[] = {
0, -1, -1, -1, -1, -1, 0, 1, 1, 1,
1, 1, 2, 3, 4, 5, 6
private static final int slen;
private static final int ailen;
private static final int packlen;
private static int pmode[];
private static int x[];
private static int y[];
private static int dx[][];
private static int dy[][];
private static int dxcount[];
private static int dycount[];
private static int frame[];
private static boolean flying[];
private static boolean dead[];
private static boolean exploding[];
private static int lastx;
private static int lasty;
private static int fly;
private static int packX[];
private static int packY[];
private static int packdx[];
private static int packdy[];
private static int packcount;
private static int framecount = 3;
private static int px;
private static int py;
private static int plastx;
private static int score;
private static String scorestr;
private static int lives;
private static int killed;
private static boolean playerdead;
private static int explodeframe;
private static int playerpause;
private static int rank;
private static boolean playerLeft;
private static boolean playerRight;
private static boolean laser;
private static int laserx;
private static int lasery;
private static RecordStore hsdata;
private static int highscore[] = new int[5];
private static boolean showmessage;
private static boolean showscores;
private static boolean gameover;
private static boolean wavecomplete;
private static int messagepause;
private static String msg;
private static int difficulty;
private static int wave;
private static String tempstr;
private static int templen;
static
slen = sposX.length;
ailen = alien_dx_flyright.length;
packlen = alien_dx_right.length;
pmode = new int[slen];
x = new int[slen];
y = new int[slen];
dx = new int[slen][ailen];
dy = new int[slen][ailen];
dxcount = new int[slen];
dycount = new int[slen];
frame = new int[slen];
flying = new boolean[slen];
dead = new boolean[slen];
exploding = new boolean[slen];
packX = new int[slen];
packY = new int[slen];
packdx = new int[packlen];
packdy = new int[packlen];
----END OF CODE ----------------hi sorry if it's too big! i hope i can explain this very well (you know i only got this code in the net), if you try to run the program in emulator, the and lunch it will it will first display the title screen and if you hit the pressed key 5 it will display help,
so my problem is how to move UP and DOWN and also if i pressed the fire button it will continue to fire. here is the code.
//Code for the Left,Right,UP and Down movement and also the fire
public void keyPressed(int i)
int j = getGameAction(i);
if(j == 2)
MobileGalaga.playerLeft = true; //this is ok
else
if(j == 5)
MobileGalaga.playerRight = true; //this is ok
else
if(j==1)
MobileGalaga.playerUp = true; //i add this only, this has a problem
else
if(j==6)
MobileGalaga.playerDown = true; //i add this only, this has a problem
else
if(j == 8)
fireLaser(); //for the release of fire
//for the release of key pressed
public void keyReleased(int i)
int j = getGameAction(i);
if(j == 2)
MobileGalaga.playerLeft = false;
else
if(j == 5)
MobileGalaga.playerRight = false;
//Update the position base on key pressed
private void updatePos()
if(playerLeft)
updatePlayerPos(-5);
else
if(playerUp)
updatePlayerPos1(-4);
else
if(playerDown)
updatePlayerPos1(4);
else
if(playerRight)
updatePlayerPos(5);
fly = Math.abs(rand.nextInt() % difficulty);
if(fly < slen && !flying[fly] && !dead[fly])
if(x[fly] < CENTERW)
setDX(fly, alien_dx_flyright, 2);
setDY(fly, alien_dy_flyright, 2);
} else
setDX(fly, alien_dx_flyleft, 2);
setDY(fly, alien_dy_flyleft, 2);
flying[fly] = true;
for(int i = 0; i < slen; i++)
if(!dead)
if(!flying[i])
if(x[i] + edgeH + dx[i][dxcount[i]] > WIDTH)
changePackDir(alien_dx_left, alien_dy_left);
if((x[i] - edgeH) + dx[i][dxcount[i]] < 0)
changePackDir(alien_dx_right, alien_dy_right);
} else
if(y[i] + edgeV + dy[i][dycount[i]] > HEIGHT)
x[i] = packX[i];
y[i] = packY[i];
flying[i] = false;
setDX(i, packdx, 0);
setDY(i, packdy, 0);
if(!playerdead && y[i] <= py + pedgeV && y[i] >= py - pedgeV && x[i] <= px + pedgeH && x[i] >= px - pedgeH)
playerHit();
if(laser && lasery <= y[i] + edgeV && lasery >= y[i] - edgeV && laserx <= x[i] + edgeH && laserx >= x[i] - edgeH)
alienHit(i);
for(int j = 0; j < slen; j++)
if(!dead[j])
if(framecount == 3)
frame[j] = frame[j] + 1 < 2 ? 1 : 0;
lastx = x[j];
lasty = y[j];
x[j] += dx[j][dxcount[j]];
y[j] += dy[j][dycount[j]];
if(pmode[j] == 0)
dxcount[j] = dxcount[j] + 1 < dx[j].length ? dxcount[j] + 1 : 0;
dycount[j] = dycount[j] + 1 < dy[j].length ? dycount[j] + 1 : 0;
} else
if(pmode[j] == 2)
dxcount[j] = dxcount[j] + 1 < dx[j].length ? dxcount[j] + 1 : dxcount[j];
dycount[j] = dycount[j] + 1 < dy[j].length ? dycount[j] + 1 : dycount[j];
packX[j] += packdx[packcount];
packY[j] += packdy[packcount];
packcount = packcount + 1 < packlen ? packcount + 1 : 0;
framecount = framecount + 1 < 4 ? framecount + 1 : 0;
if(laser)
lasery -= 6;
if(lasery < 0 )
laser = false;
// this will move the object UP,DOWN,Left and Right
private void updatePlayerPos(int i)
plastx = px;
px += i;
if(px + pedgeH > WIDTH || px - pedgeH < 0)
px = plastx;
private void updatePlayerPos1(int i)
plastx = py;
py += i;
if(px + pedgeV > HEIGHT || px - pedgeV < 0)
px = plastx;
// This will fire, if you hit the fire button
private void fireLaser()
if(!laser)
laser = true;
laserx = px;
lasery = py;
sorry if it's too long i just want too explain this. if anyone like to see this and run so that you can see it also, i can send an email.
thanks,
alek -
Can anybody help me to build an interface that can work with this code
please help me to build an interface that can work with this code
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.FileReader;
public class Translate
public static void main(String [] args) throws IOException
if (args.length != 2)
System.err.println("usage: Translate wordmapfile textfile");
System.exit(1);
try
HashMap words = ReadHashMapFromFile(args[0]);
System.out.println(ProcessFile(words, args[1]));
catch (Exception e)
e.printStackTrace();
// static helper methods
* Reads a file into a HashMap. The file should contain lines of the format
* "key\tvalue\n"
* @returns a hashmap of the given file
@SuppressWarnings("unchecked")
private static HashMap ReadHashMapFromFile(String filename) throws FileNotFoundException, IOException
BufferedReader in = null;
HashMap map = null;
try
in = new BufferedReader(new FileReader(filename));
String line;
map = new HashMap();
while ((line = in.readLine()) != null)
String[] fields = line.split("
t", 2);
if (fields.length != 2) continue; //just ignore "invalid" lines
map.put(fields[0], fields[1]);
finally
if(in!=null) in.close(); //may throw IOException
return(map); //returning a reference to local variable is safe in java (unlike C/C++)
* Process the given file
* @returns String contains the whole file.
private static String ProcessFile(Map words, String filename) throws FileNotFoundException, IOException
BufferedReader in = null;
StringBuffer out = null;
try
in = new BufferedReader(new FileReader(filename));
out = new StringBuffer();
String line = null;
while( (line=in.readLine()) != null )
out.append(SearchAndReplaceWordsInText(words, line)+"\n");
finally
if(in!=null) in.close(); //may throw IOException
return out.toString();
* Replaces all occurrences in text of each key in words with it's value.
* @returns String
private static String SearchAndReplaceWordsInText(Map words, String text)
Iterator it = words.keySet().iterator();
while( it.hasNext() )
String key = (String)it.next();
text = text.replaceAll("\\b"key"
b", (String)words.get(key));
return text;
* @returns: s with the first letter capitalized
String capitalize(String s)
return s.substring(0,0).toUpperCase() + s.substring(1);
}... here's the head of my pirate_words_map.txt
hello ahoy
hi yo-ho-ho
pardon me avast
excuse me arrr
yes aye
my me
friend me bucko
sir matey
madam proud beauty
miss comely wench
where whar
is be
are be
am be
the th'
you ye
your yer
tell be tellin'please help me i don t know how to go about this.my teacher ask me to build an interface that work with the code .
Here is the interface i just build
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.FileReader;
import java.awt.*;
import javax.swing.*;
public class boy extends JFrame
JTextArea englishtxt;
JLabel head,privatetxtwords;
JButton translateengtoprivatewords;
Container c1;
public boy()
super("HAKIMADE");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBackground(Color.white);
setLocationRelativeTo(null);
c1 = getContentPane();
head = new JLabel(" English to private talk Translator");
englishtxt = new JTextArea("Type your text here", 10,50);
translateengtoprivatewords = new JButton("Translate");
privatetxtwords = new JLabel();
JPanel headlabel = new JPanel();
headlabel.setLayout(new FlowLayout(FlowLayout.CENTER));
headlabel.add(head);
JPanel englishtxtpanel = new JPanel();
englishtxtpanel.setLayout(new FlowLayout(FlowLayout.CENTER,10,40));
englishtxtpanel.add(englishtxt);
JPanel panel1 = new JPanel();
panel1.setLayout(new BorderLayout());
panel1.add(headlabel,BorderLayout.NORTH);
panel1.add(englishtxtpanel,BorderLayout.CENTER);
JPanel translateengtoprivatewordspanel = new JPanel();
translateengtoprivatewordspanel.setLayout(new FlowLayout(FlowLayout.CENTER,10,40));
translateengtoprivatewordspanel.add(translateengtoprivatewords);
JPanel panel2 = new JPanel();
panel2.setLayout(new BorderLayout());
panel2.add(translateengtoprivatewordspanel,BorderLayout.NORTH);
panel2.add(privatetxtwords,BorderLayout.CENTER);
JPanel mainpanel = new JPanel();
mainpanel.setLayout(new BorderLayout());
mainpanel.add(panel1,BorderLayout.NORTH);
mainpanel.add(panel2,BorderLayout.CENTER);
c1.add(panel1, BorderLayout.NORTH);
c1.add(panel2);
public static void main(final String args[])
boy mp = new boy();
mp.setVisible(true);
}..............here is the code,please make this interface work with the code
public class Translate
public static void main(String [] args) throws IOException
if (args.length != 2)
System.err.println("usage: Translate wordmapfile textfile");
System.exit(1);
try
HashMap words = ReadHashMapFromFile(args[0]);
System.out.println(ProcessFile(words, args[1]));
catch (Exception e)
e.printStackTrace();
// static helper methods
* Reads a file into a HashMap. The file should contain lines of the format
* "key\tvalue\n"
* @returns a hashmap of the given file
@SuppressWarnings("unchecked")
private static HashMap ReadHashMapFromFile(String filename) throws FileNotFoundException, IOException
BufferedReader in = null;
HashMap map = null;
try
in = new BufferedReader(new FileReader(filename));
String line;
map = new HashMap();
while ((line = in.readLine()) != null)
String[] fields = line.split("
t", 2);
if (fields.length != 2) continue; //just ignore "invalid" lines
map.put(fields[0], fields[1]);
finally
if(in!=null) in.close(); //may throw IOException
return(map); //returning a reference to local variable is safe in java (unlike C/C++)
* Process the given file
* @returns String contains the whole file.
private static String ProcessFile(Map words, String filename) throws FileNotFoundException, IOException
BufferedReader in = null;
StringBuffer out = null;
try
in = new BufferedReader(new FileReader(filename));
out = new StringBuffer();
String line = null;
while( (line=in.readLine()) != null )
out.append(SearchAndReplaceWordsInText(words, line)+"\n");
finally
if(in!=null) in.close(); //may throw IOException
return out.toString();
* Replaces all occurrences in text of each key in words with it's value.
* @returns String
private static String SearchAndReplaceWordsInText(Map words, String text)
Iterator it = words.keySet().iterator();
while( it.hasNext() )
String key = (String)it.next();
text = text.replaceAll("\\b"key"
b", (String)words.get(key));
return text;
* @returns: s with the first letter capitalized
String capitalize(String s)
return s.substring(0,0).toUpperCase() + s.substring(1);
}... here's the head of my pirate_words_map.txt
hello ahoy
hi yo-ho-ho
pardon me avast
excuse me arrr
yes aye
my me
friend me bucko
sir matey
madam proud beauty
miss comely wench
where whar
is be
are be
am be
the th'
you ye
your yer
tell be tellin' -
Noob needs help with this code...
Hi,
I found this code in a nice tutorial and I wanna make slight
adjustments to the code.
Unfortunately my Action Script skills are very limited... ;)
This is the code for a 'sliding menue', depending on which
button u pressed it will 'slide' to the appropriate picture.
Here's the code:
var currentPosition:Number = large_pics.pic1._x;
var startFlag:Boolean = false;
menuSlide = function (input:MovieClip) {
if (startFlag == false) {
startFlag = true;
var finalDestination:Number = input._x;
var distanceMoved:Number = 0;
var distanceToMove:Number =
Math.abs(finalDestination-currentPosition);
var finalSpeed:Number = .2;
var currentSpeed:Number = 0;
var dir:Number = 1;
if (currentPosition<=finalDestination) {
dir = -1;
} else if (currentPosition>finalDestination) {
dir = 1;
this.onEnterFrame = function() {
currentSpeed =
Math.round((distanceToMove-distanceMoved+1)*finalSpeed);
distanceMoved += currentSpeed;
large_pics._x += dir*currentSpeed;
if (Math.abs(distanceMoved-distanceToMove)<=1) {
large_pics._x =
mask_pics._x-currentPosition+dir*distanceToMove;
currentPosition = input._x;
startFlag = false;
delete this.onEnterFrame;
b1.onRelease = function() {
menuSlide(large_pics.pic1);
b2.onRelease = function() {
menuSlide(large_pics.pic2);
b3.onRelease = function() {
menuSlide(large_pics.pic3);
b4.onRelease = function() {
menuSlide(large_pics.pic4);
I need to adjust five things in this code...
(1) I want this menue to slide vertically not horizontally.
I changed the 'x' values in the code to 'y' which I thought
would make it move vertically, but it doesn't work...
(2) Is it possible that, whatever the distance is, the
"sliding" time is always 2.2 sec ?
(3) I need to implement code that after the final position is
reached, the timeline jumps to a certain movieclip to a certain
label - depending on what button was pressed of course...
I tried to implement this code for button number two...
b2.onRelease = function() {
menuSlide(large_pics.pic2);
if (currentPosition = finalDestination) {
this.large_pics.pic2.gotoAndPlay("s1");
--> sliding still works but it doesn't jump to the
appropriate label...
(4) I wanna add 'Next' & 'Previous' buttons to the slide
show - what would be the code in this case scenario ?
My first thought was something like that Flash checks which
'pic' movieclip it is showing right now (pic1, pic2, pic3 etc.) and
depending on what button u pressed u go to the y value of movieclip
'picX + 1' (Next button) or 'picX - 1' (Previous button)...
Is that possible ?
(5) After implementing the Next & Previous buttons I need
to make sure that when it reached the last pic movieclip it will
not go further on the y value - because there is no more pic
movieclip.
Options are to either slide back to movieclip 'pic1' or
simply do nothing any more on the next button...
I know this is probably Kindergarten for you, but I have only
slight ideas how to do this and no code knowledge to back it up...
haha
Thanx a lot for your help in advance !
Always a pleasure to learn from u guys... ;)
MikeHi,
I made some progress with the code thanx to the help of
Simon, but there are still 2 things that need to be addressed...
(1) I want the sliding time always to be 2.2 sec...
here's my approach to it - just a theory but it might work:
we need a speed that changes dynamically depending on the
distance we have to travel...
I don't know if that applies for Action Scrip but I recall
from 6th grade, that...
speed = distance / time
--> we got the time (which is always 2.2 sec)
--> we got the disctance
(currentposition-finaldestination)
--> this should automatically change the speed to the
appropriate value
Unfortunately I have no clue how the action script would look
like (like I said my action script skills are very limited)...
(2) Also, one other thing I need that is not implemented yet,
is that when the final destination is reached it jumps to a certain
label inside a certain movieclip - every time different for each
button pressed - something like:
if (currentPosition = finalDestination) {
this.large_pics.pic2.gotoAndPlay("s1");
that statement just doesn't work when I put it right under
the function for each button...
Thanx again for taking the time !!!
Mike -
Hi guys, I need help in debugging this code I made, which is a GUI minesweeper. Its extremely buggy...I particularly need help fixing the actionListener part of the code as everytime I press a button on the GUI, an exception occurs.
help please!
package minesweeperGUI;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class MinesweeperGUI implements ActionListener
//Declaration of attributes
static int length = 0;
JMenuItem menuItemNew = new JMenuItem();
JRadioButtonMenuItem rbEasy = new JRadioButtonMenuItem();
JRadioButtonMenuItem rbHard = new JRadioButtonMenuItem();
JMenuItem menuItemExit = new JMenuItem();
JButton buttonReset = new JButton();
JButton buttonGrid[][] = null;
JFrame frame = new JFrame();
int getBombsTotal = 0;
JLabel setBombsLabel = new JLabel();
int a = 0;
int b = 0;
//No constructor created. Uses default constructor
//Create the menu bar
public JMenuBar newMenuBar()
//Sets up the menubar
JMenuBar menuBar = new JMenuBar();
//Sets up the Game menu with choice of new, grid size, and exit
JMenu menu = new JMenu ("Game");
menuBar.add (menu);
menuItemNew = new JMenuItem ("New");
menuItemNew.addActionListener (this);
menu.add (menuItemNew);
menu.addSeparator();
//Sets up sub-menu for grid size with choice of easy and hard radio buttons
JMenu subMenu = new JMenu ("Grid Size");
rbEasy = new JRadioButtonMenuItem ("Easy: 5x5 grid");
rbEasy.addActionListener (this);
subMenu.add (rbEasy);
rbHard = new JRadioButtonMenuItem ("Hard: 10x10 grid");
rbHard.addActionListener (this);
subMenu.add (rbHard);
menu.add (subMenu);
menu.addSeparator();
menuItemExit = new JMenuItem ("Exit");
menuItemExit.addActionListener (this);
menu.add (menuItemExit);
return menuBar;
//Setting up of Bomb Grid
public int [][] setGrid (int length)
int grid[][] = null;
grid = new int[length][length];
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
grid[i][j] = ((int)Math.round(Math.random() * 10))% 2;
return grid;
//Setting up of the of the graphical bomb grid
public JButton[][] setButtonGrid (int length)
JButton buttonGrid[][] = null;
buttonGrid = new JButton[length][length];
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
buttonGrid[i][j] = new JButton();
return buttonGrid;
//Setting up of a way to count the total number of bombs in the bomb grid
public int getBombsTotal (int length, int setGrid[][])
int bombsTotal = 0;
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
if (setGrid[i][j] == 1)
bombsTotal += 1;
return bombsTotal;
//Create a label for number of bombs left
public JLabel setBombsLabel (int getBombsTotal)
JLabel bombsLabel = new JLabel(String.valueOf (getBombsTotal) + " Bombs Left");
return bombsLabel;
//Setting up a way to count the number of bombs around a button
public String setBombs (int length, int setGrid[][], int x, int y)
int bombs[][] = new int[length][length];
String bombsString = null;
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
if (i == 0 && j == 0)
bombs[i][j] = setGrid[i][j+1] + setGrid[i+1][j] +
setGrid[i+1][j+1];
else if (i ==0 && j == (length - 1))
bombs[i][j] = setGrid[i][j-1] + setGrid[i+1][j-1] +
setGrid[i+1][j];
else if (i == (length - 1) && j == 0)
bombs[i][j] = setGrid[i-1][j] + setGrid[i-1][j+1] +
setGrid[i][j+1];
else if (i == (length - 1) && j == (length - 1))
bombs[i][j] = setGrid[i-1][j-1] + setGrid[i-1][j] +
setGrid[i][j-1];
else if (i == 0 && j != 0 && j != (length - 1))
bombs[i][j] = setGrid[i][j-1] + setGrid[i][j+1] +
setGrid[i+1][j-1] + setGrid[i+1][j] +
setGrid[i+1][j+1];
else if (i == (length - 1) && j != 0 && j != (length - 1))
bombs[i][j] = setGrid[i-1][j-1] + setGrid[i-1][j] +
setGrid[i-1][j+1] + setGrid[i][j-1] +
setGrid[i][j+1];
else if (i != 0 && i != (length - 1) && j == 0)
bombs[i][j] = setGrid[i-1][j] + setGrid[i-1][j+1] +
setGrid[i][j+1] + setGrid[i+1][j] +
setGrid[i+1][j+1];
else if (i != 0 && i != (length - 1) && j == (length - 1))
bombs[i][j] = setGrid[i-1][j-1] + setGrid[i-1][j] +
setGrid[i][j-1] + setGrid[i+1][j-1] +
setGrid[i+1][j];
else
bombs[i][j] = setGrid[i-1][j-1] + setGrid[i-1][j] +
setGrid[i-1][j+1] + setGrid[i][j-1] +
setGrid[i][j+1] + setGrid[i+1][j-1] +
setGrid[i+1][j] + setGrid[i+1][j+1];
bombsString = String.valueOf (bombs[x][y]);
return bombsString;
//create the panel for the bombs label and reset button
public JPanel newTopPanel(int length)
int setGridNew [][] = null;
setGridNew = new int[length][length];
int getBombsTotalNew = 0;
JLabel setBombsLabelNew = new JLabel();
setGridNew = setGrid (length);
getBombsTotalNew = getBombsTotal (length, setGridNew);
setBombsLabelNew = setBombsLabel (getBombsTotalNew);
JPanel topPanel = new JPanel ();
topPanel.setLayout (new BorderLayout (50,50));
JLabel bombsLabel = new JLabel ();
bombsLabel = setBombsLabelNew;
topPanel.add (bombsLabel, BorderLayout.WEST);
buttonReset = new JButton("Reset");
buttonReset.addActionListener (this);
topPanel.add (buttonReset, BorderLayout.CENTER);
return topPanel;
//create the panel for the play grids
public JPanel newBottomPanel(int length)
JButton setButtonGridNew[][] = null;
setButtonGridNew = new JButton [length][length];
setButtonGridNew = setButtonGrid (length);
JPanel bottomPanel = new JPanel ();
bottomPanel.setLayout (new GridLayout (length, length));
buttonGrid = new JButton[length][length];
for (a = 0; a < length; a++)
for (b = 0; b < length; b++)
buttonGrid[a] = setButtonGridNew[a][b];
buttonGrid[a][b].addActionListener (this);
bottomPanel.add (buttonGrid[a][b]);
return bottomPanel;
//Overiding of abstract method actionPerformed
public void actionPerformed(ActionEvent e)
if (e.getSource() == menuItemNew)
launchFrame(length);
else if (e.getSource() == menuItemExit)
frame.setVisible (false);
System.exit(0);
else if (e.getSource() == rbEasy)
length = 5;
launchFrame(length);
else if (e.getSource() == rbHard)
length = 10;
launchFrame(length);
else if (e.getSource() == buttonReset)
launchFrame(length);
else if (e.getSource() == buttonGrid[a][b])
int setGridNew [][] = null;
setGridNew = new int[length][length];
JButton bombButton [][] = null;
bombButton = new JButton [length][length];
String bombString [][] = null;
bombString = new String[length][length];
setGridNew = setGrid (length);
bombString[a][b] = setBombs (length, setGridNew, a, b);
bombButton[a][b] = new JButton (bombString[a][b]);
if (setGridNew[a][b] == 0)
buttonGrid[a][b] = bombButton[a][b];
getBombsTotal--;
JLabel setBombsLabelNew = new JLabel();
setBombsLabelNew = setBombsLabel (getBombsTotal);
else if (setGridNew[a][b] == 1 )
buttonGrid[a][b] = new JButton("x");
JOptionPane.showMessageDialog (null, "Game Over. You hit a Bomb!");
System.exit(0);
//create the content pane
public Container newContentPane(int length)
JPanel topPanel = new JPanel();
JPanel bottomPanel = new JPanel();
topPanel = newTopPanel(length);
bottomPanel = newBottomPanel (length);
JPanel contentPane = new JPanel();
contentPane.setOpaque (true);
contentPane.setLayout (new BorderLayout(50,50));
contentPane.add (topPanel, BorderLayout.NORTH);
contentPane.add (bottomPanel, BorderLayout.CENTER);
return contentPane;
public void launchFrame (int length)
//Makes sure we have nice window decorations
JFrame.setDefaultLookAndFeelDecorated(true);
//Sets up the top-level window
frame = new JFrame ("Minesweeper");
//Exits program when the closed button is clicked
frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
JMenuBar menuBar = new JMenuBar();
Container contentPane = new Container();
menuBar = newMenuBar();
contentPane = newContentPane (length);
//Sets up the menu bar and content pane
frame.setJMenuBar (menuBar);
frame.setContentPane (contentPane);
//Displays the window
frame.pack();
frame.setVisible (true);
public static void main (String args[])
//Default length is 5
length = 5;
MinesweeperGUI minesweeper = new MinesweeperGUI();
minesweeper.launchFrame(length);hi, thanks. that removed the exception; although now the buttons action listener won't work :(
here is the revised code:
To anyone out there, can you guys run this code and help me debug it?
I'm really desperate as this is a school project of mine and the deadline is 7 hours away. I have already been working on it for 3 days, but the program is still very buggy.
thanks!
/* Oliver Ian C. Wee 04-80112
* CS12 MHRU
* Machine Problem 2
package minesweeperGUI;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class MinesweeperGUI implements ActionListener
//Declaration of attributes
static int length = 0;
JMenuItem menuItemNew = new JMenuItem();
JRadioButtonMenuItem rbEasy = new JRadioButtonMenuItem();
JRadioButtonMenuItem rbHard = new JRadioButtonMenuItem();
JMenuItem menuItemExit = new JMenuItem();
JButton buttonReset = new JButton();
JButton buttonGrid[][] = null;
JFrame frame = new JFrame();
int getBombsTotal = 0;
JLabel setBombsLabel = new JLabel();
int a = 0;
int b = 0;
//No constructor created. Uses default constructor
//Create the menu bar
public JMenuBar newMenuBar()
//Sets up the menubar
JMenuBar menuBar = new JMenuBar();
//Sets up the Game menu with choice of new, grid size, and exit
JMenu menu = new JMenu ("Game");
menuBar.add (menu);
menuItemNew = new JMenuItem ("New");
menuItemNew.addActionListener (this);
menu.add (menuItemNew);
menu.addSeparator();
//Sets up sub-menu for grid size with choice of easy and hard radio buttons
JMenu subMenu = new JMenu ("Grid Size");
ButtonGroup bg = new ButtonGroup();
rbEasy = new JRadioButtonMenuItem ("Easy: 5x5 grid");
bg.add (rbEasy);
rbEasy.addActionListener (this);
subMenu.add (rbEasy);
rbHard = new JRadioButtonMenuItem ("Hard: 10x10 grid");
bg.add (rbHard);
rbHard.addActionListener (this);
subMenu.add (rbHard);
menu.add (subMenu);
menu.addSeparator();
menuItemExit = new JMenuItem ("Exit");
menuItemExit.addActionListener (this);
menu.add (menuItemExit);
return menuBar;
//Setting up of Bomb Grid
public int [][] setGrid (int length)
int grid[][] = null;
grid = new int[length][length];
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
grid[i][j] = ((int)Math.round(Math.random() * 10))% 2;
return grid;
//Setting up of the of the graphical bomb grid
public JButton[][] setButtonGrid (int length)
JButton buttonGrid[][] = null;
buttonGrid = new JButton[length][length];
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
buttonGrid[i][j] = new JButton();
return buttonGrid;
//Setting up of a way to count the total number of bombs in the bomb grid
public int getBombsTotal (int length, int setGrid[][])
int bombsTotal = 0;
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
if (setGrid[i][j] == 1)
bombsTotal += 1;
return bombsTotal;
//Create a label for number of bombs left
public JLabel setBombsLabel (int getBombsTotal)
JLabel bombsLabel = new JLabel(" " +String.valueOf (getBombsTotal) + " Bombs Left");
return bombsLabel;
//Setting up a way to count the number of bombs around a button
public String setBombs (int length, int setGrid[][], int x, int y)
int bombs[][] = new int[length][length];
String bombsString = null;
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
if (i == 0 && j == 0)
bombs[i][j] = setGrid[i][j+1] + setGrid[i+1][j] +
setGrid[i+1][j+1];
else if (i ==0 && j == (length - 1))
bombs[i][j] = setGrid[i][j-1] + setGrid[i+1][j-1] +
setGrid[i+1][j];
else if (i == (length - 1) && j == 0)
bombs[i][j] = setGrid[i-1][j] + setGrid[i-1][j+1] +
setGrid[i][j+1];
else if (i == (length - 1) && j == (length - 1))
bombs[i][j] = setGrid[i-1][j-1] + setGrid[i-1][j] +
setGrid[i][j-1];
else if (i == 0 && j != 0 && j != (length - 1))
bombs[i][j] = setGrid[i][j-1] + setGrid[i][j+1] +
setGrid[i+1][j-1] + setGrid[i+1][j] +
setGrid[i+1][j+1];
else if (i == (length - 1) && j != 0 && j != (length - 1))
bombs[i][j] = setGrid[i-1][j-1] + setGrid[i-1][j] +
setGrid[i-1][j+1] + setGrid[i][j-1] +
setGrid[i][j+1];
else if (i != 0 && i != (length - 1) && j == 0)
bombs[i][j] = setGrid[i-1][j] + setGrid[i-1][j+1] +
setGrid[i][j+1] + setGrid[i+1][j] +
setGrid[i+1][j+1];
else if (i != 0 && i != (length - 1) && j == (length - 1))
bombs[i][j] = setGrid[i-1][j-1] + setGrid[i-1][j] +
setGrid[i][j-1] + setGrid[i+1][j-1] +
setGrid[i+1][j];
else
bombs[i][j] = setGrid[i-1][j-1] + setGrid[i-1][j] +
setGrid[i-1][j+1] + setGrid[i][j-1] +
setGrid[i][j+1] + setGrid[i+1][j-1] +
setGrid[i+1][j] + setGrid[i+1][j+1];
bombsString = String.valueOf (bombs[x][y]);
return bombsString;
//create the panel for the bombs label and reset button
public JPanel newTopPanel(int length)
int setGridNew [][] = null;
setGridNew = new int[length][length];
int getBombsTotalNew = 0;
JLabel setBombsLabelNew = new JLabel();
setGridNew = setGrid (length);
getBombsTotalNew = getBombsTotal (length, setGridNew);
setBombsLabelNew = setBombsLabel (getBombsTotalNew);
JPanel topPanel = new JPanel ();
topPanel.setLayout (new BorderLayout (20,20));
JLabel bombsLabel = new JLabel ();
bombsLabel = setBombsLabelNew;
topPanel.add (bombsLabel, BorderLayout.WEST);
buttonReset = new JButton("Reset");
buttonReset.addActionListener (this);
topPanel.add (buttonReset, BorderLayout.CENTER);
return topPanel;
//create the panel for the play grids
public JPanel newBottomPanel(int length)
JButton setButtonGridNew[][] = null;
setButtonGridNew = new JButton [length][length];
setButtonGridNew = setButtonGrid (length);
JPanel bottomPanel = new JPanel ();
bottomPanel.setLayout (new GridLayout (length, length));
buttonGrid = new JButton[length][length];
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
buttonGrid[i][j] = setButtonGridNew[i][j];
buttonGrid[i][j].addActionListener (this);
bottomPanel.add (buttonGrid[i][j]);
return bottomPanel;
//Overiding of abstract method actionPerformed
public void actionPerformed(ActionEvent e)
if (e.getSource() == menuItemNew)
closeFrame();
launchFrame(length);
else if (e.getSource() == menuItemExit)
frame.setVisible (false);
System.exit(0);
else if (e.getSource() == rbEasy)
closeFrame();
length = 5;
launchFrame(length);
else if (e.getSource() == rbHard)
closeFrame();
length = 10;
launchFrame(length);
else if (e.getSource() == buttonReset)
closeFrame();
launchFrame(length);
else if (e.getSource() == buttonGrid[a])
int setGridNew [][] = null;
setGridNew = new int[length][length];
JButton bombButton [][] = null;
bombButton = new JButton [length][length];
String bombString [][] = null;
bombString = new String[length][length];
setGridNew = setGrid (length);
for (int i = 0; i < length; i++)
for (int j = 0; j < length; j++)
bombString[i][j] = setBombs (length, setGridNew, i, j);
bombButton[i][j] = new JButton (bombString[i][j]);
if (setGridNew[a][b] == 0)
buttonGrid[a][b] = bombButton[a][b];
getBombsTotal--;
JLabel setBombsLabelNew = new JLabel();
setBombsLabelNew = setBombsLabel (" " String.valueOf (getBombsTotal) " Bombs Left");
else if (setGridNew[a][b] == 1 )
buttonGrid[a][b] = new JButton("x");
JOptionPane.showMessageDialog (null, "Game Over. You hit a Bomb!");
System.exit(0);
//create the content pane
public Container newContentPane(int length)
JPanel topPanel = new JPanel();
JPanel bottomPanel = new JPanel();
topPanel = newTopPanel(length);
bottomPanel = newBottomPanel (length);
JPanel contentPane = new JPanel();
contentPane.setOpaque (true);
contentPane.setLayout (new BorderLayout(5,5));
contentPane.add (topPanel, BorderLayout.NORTH);
contentPane.add (bottomPanel, BorderLayout.CENTER);
return contentPane;
public void closeFrame ()
frame = new JFrame ("Minesweeper");
frame.dispose();
public void launchFrame (int length)
//Makes sure we have nice window decorations
JFrame.setDefaultLookAndFeelDecorated(true);
//Sets up the top-level window
frame = new JFrame ("Minesweeper");
//Exits program when the closed button is clicked
frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
JMenuBar menuBar = new JMenuBar();
Container contentPane = new Container();
menuBar = newMenuBar();
contentPane = newContentPane (length);
//Sets up the menu bar and content pane
frame.setJMenuBar (menuBar);
frame.setContentPane (contentPane);
//Displays the window
frame.pack();
frame.setVisible (true);
public static void main (String args[])
//Default length is 5
length = 5;
MinesweeperGUI minesweeper = new MinesweeperGUI();
minesweeper.launchFrame(length); -
Can anybody help me to troubleshoot this code
According to this code i must get the same number as o/p. But shift and add seems not functioning well.Can anybody help me to troubleshoot
Hello Pushpa,
Thank you for contacting National Instruments.
Which code are you specifying
Just make your problem clearly and elaborated
you can send me your code & If you might want to contact the developer of your application, contact - [email protected]
Have a great day.
Regards~
Mathews
[email protected] -
Help on upgrading this code to Java 5
Hi guys,
I was trying to upgrading the following code to comply with Java 5 using generics, but I failed. Hope somebody here can help me out of this.
This is the original code:
import java.util.*;
public class TestJava5{
public static void main(String [] args){
TestJava5 t = new TestJava5();
Collection strs = t.getAll(String.class);
for(Iterator i = strs.iterator(); i.hasNext();){
System.out.println(i.next());
private Collection getAll(Class c){
Collection rs = new ArrayList ();
if(String.class.equals(c)){
rs.add("str1");
rs.add("str2");
}else if(StringBuffer.class.equals(c)){
rs.add(new StringBuffer("buffer1"));
rs.add(new StringBuffer("buffer2"));
return rs;
}and this is the code I tried to use generics, but obviously, I cannot add a String or StringBuffer into a Collection<T>.
import java.util.*;
public class TestJava5{
public static void main(String [] args){
TestJava5 t = new TestJava5();
Collection<String> strs = t.getAll(String.class);
for(String str:strs){
System.out.println(str);
private <T> Collection<T> getAll(Class<T> c){
Collection<T> rs = new ArrayList<T>();
if(String.class.equals(c)){
rs.add("str1");
rs.add("str2");
}else if(URI.class.equals(c)){
rs.add(new StringBuffer("buffer1"));
rs.add(new StringBuffer("buffer2"));
return rs;
}Actually, now I've looked at it, it's even worse than that!
You create a collection with type T, but this type is not fixed at compile type (by definition, obviously). So when you come to add something to the collection (either a String or a StringBuffer), the compiler cannot guarantee that your collection is of the correct type.
This code is really on a hiding to nothing, I would suggest. But... the following should relieve your immediate compilation problems. However, it is likely to cause further problems when trying to use the returned collection:
private <T> Collection<?> getAll2(Class<T> c) {
if (String.class.equals(c)) {
Collection<String> rs = new ArrayList<String>();
rs.add("str1");
rs.add("str2");
return rs;
} else if (URI.class.equals(c)) {
Collection<StringBuffer> rs = new ArrayList<StringBuffer>();
rs.add(new StringBuffer("buffer1"));
rs.add(new StringBuffer("buffer2"));
return rs;
} else {
return null; // or something else like new ArrayList<Object>()
} -
need help with this code... i am new to java programming.. and having difficulties with the code below...
import java.awt.*;
import javax.swing.*;
import java.net.*;
public class DisplayImage extends JApplet
public void init()
int[] imageData = {0x47,0x49,0x46,0x38,0x39,0x61,0x38,0x00,0x12,0x00,0xF3,0x00,0x00,0xFB,0x0B,0x0E,0xFF,0x24,0x00,0xFF,0x3C,0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x7B,0xFF,0x00,0x1E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x2C,0x00,0x00,0x00,0x00,0x38,0x00,0x12,0x00,0x00,0x04,0x68,0x10,0xC8,0x49,0xAB,0xBD,0x38,0xEB,0xCD,0xBB,0x0E,0x5E,0x26,0x84,0x64,0x69,0x9E,0xE6,0xA0,0x0E,0xD5,0xEA,0x4E,0xEE,0x4A,0xBD,0xA8,0x2A,0xD9,0x30,0xCB,0xE1,0x00,0xCE,0x93,0xBC,0x9F,0x6E,0x13,0x1C,0xF6,0x8C,0xA7,0x62,0x47,0x99,0x43,0xDD,0x8C,0x31,0x64,0x73,0xFA,0xAC,0xC9,0xA8,0x3F,0xEA,0x71,0x26,0x2D,0x65,0xB9,0x96,0xAC,0xEF,0x9B,0xEA,0x6E,0x5B,0xD2,0xA8,0x53,0x0B,0x6E,0x67,0xC8,0x44,0xA8,0x4E,0x88,0x14,0xCB,0x93,0xF3,0xFB,0xD9,0x3D,0x85,0x2F,0xAF,0x5C,0x64,0x82,0x80,0x6B,0x16,0x04,0x85,0x88,0x6B,0x05,0x89,0x12,0x11,0x00,0x3B};
ImageIcon icon = null;
try
icon = ImageIcon(ImageDate[]);
catch(IOException e)
System.out.println("Failed to create URL:\n" + e);
return;
loadImage(image);
int imageWidth = icon.getIconWidth(); // Get icon width
int imageHeight = icon.getIconHeight(); // and its height
resize(imageWidth,imageHeight); // Set applet size to fit the image
//Create panel a showing the image
ImagePanel imagePanel = new ImagePanel(icon.getImage());
getContentPane().add(imagePanel); // Add the panel to the content pane
// Class representing a panel displaying an image
class ImagePanel extends JPanel
public ImagePanel(Image image)
this.image = image;
public void paint(Graphics g)
g.drawImage(image, 0, 0, this); // Display the image
Image image; // The image
}Thanks in advance...
Uzairyeah true.... its not that i need someone to write the code.. just cos this code is giving me some problems thought i could get code from others...
i noticed the extra bracket ending the init().. but thats not what i have problem with....
It is with how to use ImageIcon(byte[])
it is something that i need to use this thing in particular... as i am asked to do.... -
Hi I got this code of the net which displays a calendar and when a date
is selected from the calendar it is displayed in the textfield.
At the moment if nothing is selected from the calendar it displays the first of the month in the textField.
I want the calendar to work in such a way that if nothing is selected from the calendar then no changes are made to the textfield.
Can someone help me out?
Thanks alot
import javax.swing.*;
import javax.swing.border.*;
import java.awt.event.*;
import java.awt.*;
import java.util.Date;
import java.util.Calendar;
* dialog to allow user to select a date and return
* a java.util.Date object
* Creation date: (2/5/00 10:57:04 AM)
public class DateChooser extends JDialog implements ActionListener {
//TODO: submit to resource bundle for internationalization
private String[] months = {"Jan","Feb", "Mar","Apr", "May","June","July","Aug","Sept","Oct","Nov","Dec"};
private JButton[] days = null;
private JLabel monthLabel = null;
private Calendar calendar = null;
private JPanel mainPanel = null;
* DateChooser constructor comment.
public DateChooser() {
super();
this.setModal(true);
initialize();
* deal with all the buttons that may be pressed
* Creation date: (2/5/00 11:36:11 AM)
* @param e java.awt.event.ActionEvent
public void actionPerformed(ActionEvent e) {
String text;
if (e.getActionCommand().equals("D")){
//return a date
text = ((JButton) e.getSource()).getText();
if (text.length() > 0){
this.returnDate(text);
} else {
Toolkit.getDefaultToolkit().beep();
} else {
this.roll(e.getActionCommand());
* repaint the window with the supplied calendar date
* Creation date: (2/5/00 11:04:03 AM)
* @param d java.util.Date
private void caption() {
Calendar cal = this.getCalendar();
int startPos;
int currentMonth = cal.get(Calendar.MONTH);
//for painting ease, quick display
mainPanel.setVisible(false);
//set month
monthLabel.setText(months[cal.get(Calendar.MONTH)] + " " + cal.get(Calendar.YEAR));
//set to first day
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), 1);
//now work the day labels
startPos = cal.get(Calendar.DAY_OF_WEEK);
for (int i = startPos - 1; i < days.length; i++) {
days.setText(String.valueOf(cal.get(Calendar.DATE)));
cal.roll(Calendar.DATE, true);
if (cal.get(Calendar.DATE) == 1) {
//clear remaining labels going forward
for (int j = i + 1; j < days.length; j++) {
days[j].setText("");
break;
//work first week
for (int h = 0; h < startPos - 1; h++) {
if (cal.get(Calendar.DATE) > 25 ) {
days[h].setText(String.valueOf(cal.get(Calendar.DATE)));
cal.roll(Calendar.DATE, true);
} else {
days[h].setText("");
this.setCalendar(cal);
mainPanel.setVisible(true);
* Insert the method's description here.
* Creation date: (2/5/00 1:12:24 PM)
* @return java.util.Calendar
public java.util.Calendar getCalendar() {
if (this.calendar == null){
calendar = Calendar.getInstance();
return calendar;
* set up the layout and look of the dialog
* but don't do any data yet.
* Creation date: (2/5/00 11:02:37 AM)
private void initialize() {
JButton jb;
/* layout:
North panel: month + year display
Center Panel: buttons for the days, 5 by 7 grid
South Panel: navigation buttons */
mainPanel = new JPanel();
JPanel northPanel = new JPanel();
JPanel centerPanel = new JPanel();
JPanel southPanel = new JPanel();
//widgets
//NORTH
monthLabel = new JLabel(months[9] + " 1953");
northPanel.setLayout(new FlowLayout());
northPanel.add(monthLabel);
//CENTER
centerPanel.setLayout(new GridLayout(5,7));
days = new JButton[35];
for (int i = 0; i <35; i++){
jb = new JButton(String.valueOf(i));
jb.setSize(25,25);
jb.setBorder(new EmptyBorder(1,1,1,1));
jb.setFocusPainted(false);
jb.setActionCommand("D");
jb.addActionListener(this);
days[i] = jb;
centerPanel.add(jb);
//SOUTH
southPanel.setLayout(new FlowLayout());
southPanel.add(this.makeButton("<<"));
southPanel.add(this.makeButton("<"));
southPanel.add(this.makeButton(">"));
southPanel.add(this.makeButton(">>"));
mainPanel.setLayout(new BorderLayout());
mainPanel.add(northPanel, "North");
mainPanel.add(centerPanel,"Center");
mainPanel.add(southPanel, "South");
this.getContentPane().add(mainPanel);
this.setSize(150,150);
caption();
* for testing only.
* Creation date: (2/5/00 11:19:35 AM)
* @param args java.lang.String[]
public static void main(String[] args) {
try{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e){}
final DateChooser dc = new DateChooser();
JFrame jf = new JFrame();
jf.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
JPanel jp = new JPanel();
final JTextField jff = new JTextField("The date field will hold the result.");
JButton jb = new JButton("...");
jb.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
dc.show();
java.text.DateFormat df = java.text.DateFormat.getDateInstance(java.text.DateFormat.MEDIUM);
System.out.println(df.format(new java.util.Date()));
jff.setText("" + df.format(dc.getCalendar().getTime()));
jp.add(jff);
jp.add(jb);
jf.getContentPane().add(jp);
jf.setSize(300,300);
jf.show();
//set up location of the dialog
dc.setLocationRelativeTo(jb);
* return a button to the control Panel
* Creation date: (2/5/00 10:57:59 AM)
* @return java.lang.String
private JButton makeButton(String caption) {
JButton jb = new JButton(caption);
jb.setSize(25,25);
jb.setBorder(new EmptyBorder(1,4,1,4));
jb.setFocusPainted(false);
jb.setActionCommand(caption);
jb.addActionListener(this);
return jb;
* roll the calendar to the day
* then hide the dialog
* Creation date: (2/5/00 11:40:31 AM)
* @param day java.lang.String
private void returnDate(String day) {
this.getCalendar().set(this.getCalendar().get(Calendar.YEAR),this.getCalendar().get(Calendar.MONTH),Integer.parseInt(day));
this.setVisible(false);
* which way to roll the calendar
* Creation date: (2/5/00 11:46:42 AM)
* @param direction java.lang.String
private void roll(String direction) {
int field;
if (direction.equals(">>")) calendar.roll(Calendar.YEAR,true);
if (direction.equals(">")) calendar.roll(Calendar.MONTH,true);
if (direction.equals("<<")) calendar.roll(Calendar.YEAR,false);
if (direction.equals("<")) calendar.roll(Calendar.MONTH,false);
caption();
* Insert the method's description here.
* Creation date: (2/5/00 1:12:24 PM)
* @param newCalendar java.util.Calendar
public void setCalendar(java.util.Calendar newCalendar) {
calendar = newCalendar;I don't give a stuff bout your prob... the formatting just pissed me off, thats all!
import javax.swing.*;
import javax.swing.border.*;
import java.awt.event.*;
import java.awt.*;
import java.util.Date;
import java.util.Calendar;
* dialog to allow user to select a date and return
* a java.util.Date object
* Creation date: (2/5/00 10:57:04 AM)
public class DateChooser extends JDialog implements ActionListener {
//TODO: submit to resource bundle for internationalization
private String[] months = {"Jan","Feb", "Mar","Apr", "May","June","July","Aug","Sept","Oct","Nov","Dec"};
private JButton[] days = null;
private JLabel monthLabel = null;
private Calendar calendar = null;
private JPanel mainPanel = null;
* DateChooser constructor comment.
public DateChooser() {
super();
this.setModal(true);
initialize();
* deal with all the buttons that may be pressed
* Creation date: (2/5/00 11:36:11 AM)
* @param e java.awt.event.ActionEvent
public void actionPerformed(ActionEvent e) {
String text;
if (e.getActionCommand().equals("D")){
//return a date
text = ((JButton) e.getSource()).getText();
if (text.length() > 0){
this.returnDate(text);
} else {
Toolkit.getDefaultToolkit().beep();
} else {
this.roll(e.getActionCommand());
* repaint the window with the supplied calendar date
* Creation date: (2/5/00 11:04:03 AM)
* @param d java.util.Date
private void caption() {
Calendar cal = this.getCalendar();
int startPos;
int currentMonth = cal.get(Calendar.MONTH);
//for painting ease, quick display
mainPanel.setVisible(false);
//set month
monthLabel.setText(months[cal.get(Calendar.MONTH)] + " " + cal.get(Calendar.YEAR));
//set to first day
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), 1);
//now work the day labels
startPos = cal.get(Calendar.DAY_OF_WEEK);
for (int i = startPos - 1; i < days.length; i++) {
days.setText(String.valueOf(cal.get(Calendar.DATE)));
cal.roll(Calendar.DATE, true);
if (cal.get(Calendar.DATE) == 1) {
//clear remaining labels going forward
for (int j = i + 1; j < days.length; j++) {
days[j].setText("");
break;
//work first week
for (int h = 0; h < startPos - 1; h++) {
if (cal.get(Calendar.DATE) > 25 ) {
days[h].setText(String.valueOf(cal.get(Calendar.DATE)));
cal.roll(Calendar.DATE, true);
} else {
days[h].setText("");
this.setCalendar(cal);
mainPanel.setVisible(true);
* Insert the method's description here.
* Creation date: (2/5/00 1:12:24 PM)
* @return java.util.Calendar
public java.util.Calendar getCalendar() {
if (this.calendar == null){
calendar = Calendar.getInstance();
return calendar;
* set up the layout and look of the dialog
* but don't do any data yet.
* Creation date: (2/5/00 11:02:37 AM)
private void initialize() {
JButton jb;
/* layout:
North panel: month + year display
Center Panel: buttons for the days, 5 by 7 grid
South Panel: navigation buttons */
mainPanel = new JPanel();
JPanel northPanel = new JPanel();
JPanel centerPanel = new JPanel();
JPanel southPanel = new JPanel();
//widgets
//NORTH
monthLabel = new JLabel(months[9] + " 1953");
northPanel.setLayout(new FlowLayout());
northPanel.add(monthLabel);
//CENTER
centerPanel.setLayout(new GridLayout(5,7));
days = new JButton[35];
for (int i = 0; i <35; i++){
jb = new JButton(String.valueOf(i));
jb.setSize(25,25);
jb.setBorder(new EmptyBorder(1,1,1,1));
jb.setFocusPainted(false);
jb.setActionCommand("D");
jb.addActionListener(this);
days = jb;
centerPanel.add(jb);
//SOUTH
southPanel.setLayout(new FlowLayout());
southPanel.add(this.makeButton("<<"));
southPanel.add(this.makeButton("<"));
southPanel.add(this.makeButton(">"));
southPanel.add(this.makeButton(">>"));
mainPanel.setLayout(new BorderLayout());
mainPanel.add(northPanel, "North");
mainPanel.add(centerPanel,"Center");
mainPanel.add(southPanel, "South");
this.getContentPane().add(mainPanel);
this.setSize(150,150);
caption();
* for testing only.
* Creation date: (2/5/00 11:19:35 AM)
* @param args java.lang.String[]
public static void main(String[] args) {
try{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e){}
final DateChooser dc = new DateChooser();
JFrame jf = new JFrame();
jf.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
JPanel jp = new JPanel();
final JTextField jff = new JTextField("The date field will hold the result.");
JButton jb = new JButton("...");
jb.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
dc.show();
java.text.DateFormat df = java.text.DateFormat.getDateInstance(java.text.DateFormat.MEDIUM);
System.out.println(df.format(new java.util.Date()));
jff.setText("" + df.format(dc.getCalendar().getTime()));
jp.add(jff);
jp.add(jb);
jf.getContentPane().add(jp);
jf.setSize(300,300);
jf.show();
//set up location of the dialog
dc.setLocationRelativeTo(jb);
* return a button to the control Panel
* Creation date: (2/5/00 10:57:59 AM)
* @return java.lang.String
private JButton makeButton(String caption) {
JButton jb = new JButton(caption);
jb.setSize(25,25);
jb.setBorder(new EmptyBorder(1,4,1,4));
jb.setFocusPainted(false);
jb.setActionCommand(caption);
jb.addActionListener(this);
return jb;
* roll the calendar to the day
* then hide the dialog
* Creation date: (2/5/00 11:40:31 AM)
* @param day java.lang.String
private void returnDate(String day) {
this.getCalendar().set(this.getCalendar().get(Calendar.YEAR),this.getCalendar().get(Calendar.MONTH),Integer.parseInt(day));
this.setVisible(false);
* which way to roll the calendar
* Creation date: (2/5/00 11:46:42 AM)
* @param direction java.lang.String
private void roll(String direction) {
int field;
if (direction.equals(">>")) calendar.roll(Calendar.YEAR,true);
if (direction.equals(">")) calendar.roll(Calendar.MONTH,true);
if (direction.equals("<<")) calendar.roll(Calendar.YEAR,false);
if (direction.equals("<")) calendar.roll(Calendar.MONTH,false);
caption();
* Insert the method's description here.
* Creation date: (2/5/00 1:12:24 PM)
* @param newCalendar java.util.Calendar
public void setCalendar(java.util.Calendar newCalendar) {
calendar = newCalendar;
} -
Hi I got this code of the net which displays a calendar and when a date
is selected from the calendar it is displayed in the textfield.
At the moment if nothing is selected from the calendar it displays the first of the month in the textField.
I want the calendar to work in such a way that if nothing is selected from the calendar then no changes are made to the textfield.
Can someone help me out?
Well the thing to look at is the main method.
the main method:
jb.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
dc.show();
jff.setText("" + dc.getCalendar().getTime());
The component works by exposing a Calendar object,
which has been initialized to the first of the month.
I think to change this, you would need to wrap the Calendar in
a new method of Datechooser, like getDateText(). It
would have code like
return this.dateTextString;
The DateChooser's actionPerformed method would need to
update the dateTextString variable that this new
method would expose...
I don't have time to do this... can someone do this for me....pliz
Thanks alot
import javax.swing.*;
import javax.swing.border.*;
import java.awt.event.*;
import java.awt.*;
import java.util.Date;
import java.util.Calendar;
* dialog to allow user to select a date and return
* a java.util.Date object
* Creation date: (2/5/00 10:57:04 AM)
public class DateChooser extends JDialog implements ActionListener {
//TODO: submit to resource bundle for internationalization
private String[] months = {"Jan","Feb", "Mar","Apr", "May","June","July","Aug","Sept","Oct","Nov","Dec"};
private JButton[] days = null;
private JLabel monthLabel = null;
private Calendar calendar = null;
private JPanel mainPanel = null;
* DateChooser constructor comment.
public DateChooser() {
super();
this.setModal(true);
initialize();
* deal with all the buttons that may be pressed
* Creation date: (2/5/00 11:36:11 AM)
* @param e java.awt.event.ActionEvent
public void actionPerformed(ActionEvent e) {
String text;
if (e.getActionCommand().equals("D")){
//return a date
text = ((JButton) e.getSource()).getText();
if (text.length() > 0){
this.returnDate(text);
} else {
Toolkit.getDefaultToolkit().beep();
} else {
this.roll(e.getActionCommand());
* repaint the window with the supplied calendar date
* Creation date: (2/5/00 11:04:03 AM)
* @param d java.util.Date
private void caption() {
Calendar cal = this.getCalendar();
int startPos;
int currentMonth = cal.get(Calendar.MONTH);
//for painting ease, quick display
mainPanel.setVisible(false);
//set month
monthLabel.setText(months[cal.get(Calendar.MONTH)] + " " + cal.get(Calendar.YEAR));
//set to first day
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), 1);
//now work the day labels
startPos = cal.get(Calendar.DAY_OF_WEEK);
for (int i = startPos - 1; i < days.length; i++) {
days.setText(String.valueOf(cal.get(Calendar.DATE)));
cal.roll(Calendar.DATE, true);
if (cal.get(Calendar.DATE) == 1) {
//clear remaining labels going forward
for (int j = i + 1; j < days.length; j++) {
days[j].setText("");
break;
//work first week
for (int h = 0; h < startPos - 1; h++) {
if (cal.get(Calendar.DATE) > 25 ) {
days[h].setText(String.valueOf(cal.get(Calendar.DATE)));
cal.roll(Calendar.DATE, true);
} else {
days[h].setText("");
this.setCalendar(cal);
mainPanel.setVisible(true);
* Insert the method's description here.
* Creation date: (2/5/00 1:12:24 PM)
* @return java.util.Calendar
public java.util.Calendar getCalendar() {
if (this.calendar == null){
calendar = Calendar.getInstance();
return calendar;
* set up the layout and look of the dialog
* but don't do any data yet.
* Creation date: (2/5/00 11:02:37 AM)
private void initialize() {
JButton jb;
/* layout:
North panel: month + year display
Center Panel: buttons for the days, 5 by 7 grid
South Panel: navigation buttons */
mainPanel = new JPanel();
JPanel northPanel = new JPanel();
JPanel centerPanel = new JPanel();
JPanel southPanel = new JPanel();
//widgets
//NORTH
monthLabel = new JLabel(months[9] + " 1953");
northPanel.setLayout(new FlowLayout());
northPanel.add(monthLabel);
//CENTER
centerPanel.setLayout(new GridLayout(5,7));
days = new JButton[35];
for (int i = 0; i <35; i++){
jb = new JButton(String.valueOf(i));
jb.setSize(25,25);
jb.setBorder(new EmptyBorder(1,1,1,1));
jb.setFocusPainted(false);
jb.setActionCommand("D");
jb.addActionListener(this);
days = jb;
centerPanel.add(jb);
//SOUTH
southPanel.setLayout(new FlowLayout());
southPanel.add(this.makeButton("<<"));
southPanel.add(this.makeButton("<"));
southPanel.add(this.makeButton(">"));
southPanel.add(this.makeButton(">>"));
mainPanel.setLayout(new BorderLayout());
mainPanel.add(northPanel, "North");
mainPanel.add(centerPanel,"Center");
mainPanel.add(southPanel, "South");
this.getContentPane().add(mainPanel);
this.setSize(150,150);
caption();
* for testing only.
* Creation date: (2/5/00 11:19:35 AM)
* @param args java.lang.String[]
public static void main(String[] args) {
try{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e){}
final DateChooser dc = new DateChooser();
JFrame jf = new JFrame();
jf.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
JPanel jp = new JPanel();
final JTextField jff = new JTextField("The date field will hold the result.");
JButton jb = new JButton("...");
jb.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
dc.show();
java.text.DateFormat df = java.text.DateFormat.getDateInstance(java.text.DateFormat.MEDIUM);
System.out.println(df.format(new java.util.Date()));
jff.setText("" + df.format(dc.getCalendar().getTime()));
jp.add(jff);
jp.add(jb);
jf.getContentPane().add(jp);
jf.setSize(300,300);
jf.show();
//set up location of the dialog
dc.setLocationRelativeTo(jb);
* return a button to the control Panel
* Creation date: (2/5/00 10:57:59 AM)
* @return java.lang.String
private JButton makeButton(String caption) {
JButton jb = new JButton(caption);
jb.setSize(25,25);
jb.setBorder(new EmptyBorder(1,4,1,4));
jb.setFocusPainted(false);
jb.setActionCommand(caption);
jb.addActionListener(this);
return jb;
* roll the calendar to the day
* then hide the dialog
* Creation date: (2/5/00 11:40:31 AM)
* @param day java.lang.String
private void returnDate(String day) {
this.getCalendar().set(this.getCalendar().get(Calendar.YEAR),this.getCalendar().get(Calendar.MONTH),Integer.parseInt(day));
this.setVisible(false);
* which way to roll the calendar
* Creation date: (2/5/00 11:46:42 AM)
* @param direction java.lang.String
private void roll(String direction) {
int field;
if (direction.equals(">>")) calendar.roll(Calendar.YEAR,true);
if (direction.equals(">")) calendar.roll(Calendar.MONTH,true);
if (direction.equals("<<")) calendar.roll(Calendar.YEAR,false);
if (direction.equals("<")) calendar.roll(Calendar.MONTH,false);
caption();
* Insert the method's description here.
* Creation date: (2/5/00 1:12:24 PM)
* @param newCalendar java.util.Calendar
public void setCalendar(java.util.Calendar newCalendar) {
calendar = newCalendar;there are 2 errors in ur code which i removed and run the application.I dont understand really what is ur task??the text filed shows this text "The date field will hold the result." if calender is not selected.here is ur code.now withour errors
import javax.swing.*;
import javax.swing.border.*;
import java.awt.event.*;
import java.awt.*;
import java.util.Date;
import java.util.Calendar;
* dialog to allow user to select a date and return
* a java.util.Date object
* Creation date: (2/5/00 10:57:04 AM)
public class DateChooser extends JDialog implements ActionListener {
//TODO: submit to resource bundle for internationalization
private String[] months = {"Jan","Feb", "Mar","Apr", "May","June","July","Aug","Sept","Oct","Nov","Dec"};
private JButton[] days = null;
private JLabel monthLabel = null;
private Calendar calendar = null;
private JPanel mainPanel = null;
* DateChooser constructor comment.
public DateChooser() {
super();
this.setModal(true);
initialize();
* deal with all the buttons that may be pressed
* Creation date: (2/5/00 11:36:11 AM)
* @param e java.awt.event.ActionEvent
public void actionPerformed(ActionEvent e) {
String text;
if (e.getActionCommand().equals("D")){
//return a date
text = ((JButton) e.getSource()).getText();
if (text.length() > 0){
this.returnDate(text);
} else {
Toolkit.getDefaultToolkit().beep();
} else {
this.roll(e.getActionCommand());
* repaint the window with the supplied calendar date
* Creation date: (2/5/00 11:04:03 AM)
* @param d java.util.Date
private void caption() {
Calendar cal = this.getCalendar();
int startPos;
int currentMonth = cal.get(Calendar.MONTH);
//for painting ease, quick display
mainPanel.setVisible(false);
//set month
monthLabel.setText(months[cal.get(Calendar.MONTH)] + " " + cal.get(Calendar.YEAR));
//set to first day
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), 1);
//now work the day labels
startPos = cal.get(Calendar.DAY_OF_WEEK);
for (int i = startPos - 1; i < days.length; i++) {
days.setText(String.valueOf(cal.get(Calendar.DATE)));
cal.roll(Calendar.DATE, true);
if (cal.get(Calendar.DATE) == 1) {
//clear remaining labels going forward
for (int j = i + 1; j < days.length; j++) {
days[j].setText("");
break;
//work first week
for (int h = 0; h < startPos - 1; h++) {
if (cal.get(Calendar.DATE) > 25 ) {
days[h].setText(String.valueOf(cal.get(Calendar.DATE)));
cal.roll(Calendar.DATE, true);
} else {
days[h].setText("");
this.setCalendar(cal);
mainPanel.setVisible(true);
* Insert the method's description here.
* Creation date: (2/5/00 1:12:24 PM)
* @return java.util.Calendar
public java.util.Calendar getCalendar() {
if (this.calendar == null){
calendar = Calendar.getInstance();
return calendar;
* set up the layout and look of the dialog
* but don't do any data yet.
* Creation date: (2/5/00 11:02:37 AM)
private void initialize() {
JButton jb;
/* layout:
North panel: month + year display
Center Panel: buttons for the days, 5 by 7 grid
South Panel: navigation buttons */
mainPanel = new JPanel();
JPanel northPanel = new JPanel();
JPanel centerPanel = new JPanel();
JPanel southPanel = new JPanel();
//widgets
//NORTH
monthLabel = new JLabel(months[9] + " 1953");
northPanel.setLayout(new FlowLayout());
northPanel.add(monthLabel);
//CENTER
centerPanel.setLayout(new GridLayout(5,7));
days = new JButton[35];
for (int i = 0; i <35; i++){
jb = new JButton(String.valueOf(i));
jb.setSize(25,25);
jb.setBorder(new EmptyBorder(1,1,1,1));
jb.setFocusPainted(false);
jb.setActionCommand("D");
jb.addActionListener(this);
days[i] = jb;
centerPanel.add(jb);
//SOUTH
southPanel.setLayout(new FlowLayout());
southPanel.add(this.makeButton("<<"));
southPanel.add(this.makeButton("<"));
southPanel.add(this.makeButton(">"));
southPanel.add(this.makeButton(">>"));
mainPanel.setLayout(new BorderLayout());
mainPanel.add(northPanel, "North");
mainPanel.add(centerPanel,"Center");
mainPanel.add(southPanel, "South");
this.getContentPane().add(mainPanel);
this.setSize(150,150);
caption();
* for testing only.
* Creation date: (2/5/00 11:19:35 AM)
* @param args java.lang.String[]
public static void main(String[] args) {
try{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e){}
final DateChooser dc = new DateChooser();
JFrame jf = new JFrame();
jf.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
JPanel jp = new JPanel();
final JTextField jff = new JTextField("The date field will hold the result.");
JButton jb = new JButton("...");
jb.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
dc.show();
java.text.DateFormat df = java.text.DateFormat.getDateInstance(java.text.DateFormat.MEDIUM);
System.out.println(df.format(new java.util.Date()));
jff.setText("" + df.format(dc.getCalendar().getTime()));
jp.add(jff);
jp.add(jb);
jf.getContentPane().add(jp);
jf.setSize(300,300);
jf.show();
//set up location of the dialog
dc.setLocationRelativeTo(jb);
* return a button to the control Panel
* Creation date: (2/5/00 10:57:59 AM)
* @return java.lang.String
private JButton makeButton(String caption) {
JButton jb = new JButton(caption);
jb.setSize(25,25);
jb.setBorder(new EmptyBorder(1,4,1,4));
jb.setFocusPainted(false);
jb.setActionCommand(caption);
jb.addActionListener(this);
return jb;
* roll the calendar to the day
* then hide the dialog
* Creation date: (2/5/00 11:40:31 AM)
* @param day java.lang.String
private void returnDate(String day) {
this.getCalendar().set(this.getCalendar().get(Calendar.YEAR),this.getCalendar().get(Calendar.MONTH),Integer.parseInt(day));
this.setVisible(false);
* which way to roll the calendar
* Creation date: (2/5/00 11:46:42 AM)
* @param direction java.lang.String
private void roll(String direction) {
int field;
if (direction.equals(">>")) calendar.roll(Calendar.YEAR,true);
if (direction.equals(">")) calendar.roll(Calendar.MONTH,true);
if (direction.equals("<<")) calendar.roll(Calendar.YEAR,false);
if (direction.equals("<")) calendar.roll(Calendar.MONTH,false);
caption();
* Insert the method's description here.
* Creation date: (2/5/00 1:12:24 PM)
* @param newCalendar java.util.Calendar
public void setCalendar(java.util.Calendar newCalendar) {
calendar = newCalendar;
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