What is problem with this code?
FUNCTION ZTEST.
data: disp_alv type as4flag value 'X' .
perform test using disp_alv.
form test using value(disp_alv) type as4flag .
endform.
ENDFUNCTION.
here is simple test function.
and shows error
'Incorrect nesting: Before the statement "FORM", the structure
introduced by "FUNCTION" must be concluded by "ENDFUNCTION" . . . . . . '
it means should I put 'form' outside of function?
or 'form' is not available inside function as itself?
Reagrds.
Lee
Hi,
Put the form declaration after ENDFUNCTION.
Something like this.
FUNCTION ZTEST.
""Local Interface:
PERFORM EDIT.
*& Form edit
text
ENDFUNCTION.
FORM EDIT.
ENDFORM. "edit
Award points if it was helpfull..
Thanks and Regards
Manish
Similar Messages
-
Whats the problem with this code?
import javax.swing.JOptionPane;
public class change{
int coins[] = {1,5,10,25,50};
int change=0;
public void backtracking(coins,change){
int b=0;
for(int i=0; i<=4; i++){
if (coins[i] <= change){
b = max(b, coins[i]+backtracking(i, change - coins));
System.out.println("Output: "+b);
public static void main(){
int input = JOptionPane.showInputDialog("Amountof the change? ");
backtracking(coins, input);Here's a few, for starters
import javax.swing.JOptionPane;
public class change{
//class names should start with capital letters
int coins[] = {1,5,10,25,50};
int change=0;
public void backtracking(coins,change){
//this is a method signature, needs type identifiers etc, something like public void backtracking(int[] anyIntArray,int anyInt)
int b=0;
for(int i=0; i<=4; i++){
//here, 4 is a magic number, if you mean <= all the elements of coins[], use < coins.length
if (coins[i] <= change){
//coins[i] will never be less then change(which is 0)
b = max(b, coins[i]+backtracking(i, change - coins));
//there is no method max declared anywhere
System.out.println("Output: "+b);
public static void main(){
//main method signature is incorrect, will compile, but will error
int input = JOptionPane.showInputDialog("Amountof the change? ");
//you're trying to put a string into an int
backtracking(coins, input);
//you have not created an instance of class Change, to use this method -
Please tell me what is the problem with this code
Hai,
Iam new to Swings. can any one tell what is the problem with this code. I cant see those controls on the frame. please give me the suggestions.
I got the frame ,but the controls are not.
this is the code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class ex2 extends JFrame
JButton b1;
JLabel l1,l2;
JPanel p1,p2;
JTextField tf1;
JPasswordField tf2;
public ex2()
setDefaultCloseOperation(EXIT_ON_CLOSE);
setTitle("Another example");
setSize(500,500);
setVisible(true);
b1=new JButton(" ok ");
p1=new JPanel();
p1.setLayout(new GridLayout(2,2));
p2=new JPanel();
p2.setLayout(new BorderLayout());
l1=new JLabel("Name :");
l2=new JLabel("Password:");
tf1=new JTextField(15);
tf2=new JPasswordField(15);
Container con=getContentPane();
con.add(p1);
con.add(p2);
public static void createAndShowGUI()
ex2.setDefaultLookAndFeelDecorated(true);
public static void main(String ar[])
createAndShowGUI();
new ex2();
}import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class ex2 extends JFrame
JButton b1;
JLabel l1,l2;
JPanel p1,p2;
JTextField tf1;
JPasswordField tf2;
public ex2()
setDefaultCloseOperation(EXIT_ON_CLOSE);
setTitle("Another example");
b1=new JButton(" ok ");
p1=new JPanel();
p1.add(b1);
p2=new JPanel();
p2.setLayout(new GridLayout(2,2));
l1=new JLabel("Name :");
l2=new JLabel("Password:");
tf1=new JTextField(15);
tf2=new JPasswordField(15);
p2.add(l1);
p2.add(tf1);
p2.add(l2);
p2.add(tf2);
Container con=getContentPane();
con.add(p1, BorderLayout.NORTH);
con.add(p2, BorderLayout.CENTER);
pack();
setVisible(true);
public static void createAndShowGUI()
ex2.setDefaultLookAndFeelDecorated(true);
public static void main(String ar[])
createAndShowGUI();
new ex2();
} -
Vector, what is the problem with this code?
Vector, what is the problem with this code?
63 private java.util.Vector data=new Vector();
64 Vector aaaaa=new Vector();
65 data.addElement(aaaaa);
74 aaaaa.addElement(new String("Mary"));on compiling this code, the error is
TableDemo.java:65: <identifier> expected
data.addElement(aaaaa);
^
TableDemo.java:74: <identifier> expected
aaaaa.addElement(new String("Mary"));
^
TableDemo.java:65: package data does not exist
data.addElement(aaaaa);
^
TableDemo.java:74: package aaaaa does not exist
aaaaa.addElement(new String("Mary"));Friends i really got fed up with this code for more than half an hour.could anybody spot the problem?I can see many:
1. i assume your code snip is inside a method. a local variable can not be declare private.
2. if you didn't import java.util.* on top then you need to prefix package on All occurance of Vector.
3. String in java are constant and has literal syntax. "Mary" is sufficient in most of the time, unless you purposly want to call new String("Mary") on purpose. Read java.lang.String javadoc.
Here is a sample that would compile...:
public class QuickMain {
public static void main(String[] args) {
java.util.Vector data=new java.util.Vector();
java.util.Vector aaaaa=new java.util.Vector();
data.addElement(aaaaa);
aaaaa.addElement(new String("Mary"));
} -
What is wrong with this code? on(release) gotoAndPlay("2")'{'
Please could someone tell me what is wrong with this code - on(release)
gotoAndPlay("2")'{'
this is the error that comes up and i have tried changing it but it is not working
**Error** Scene=Scene 1, layer=Layer 2, frame=1:Line 2: '{' expected
gotoAndPlay("2")'{'
Total ActionScript Errors: 1 Reported Errors: 1
ThanksIf you have a frame labelled "2" then it should be:
on (release) {
this._parent.gotoAndPlay("2");
or other wise just the following to go to frame 2:
on (release) {
this._parent.gotoAndPlay(2);
You just had a missing curly bracket... -
I can't figure out what's wrong with this code
First i want this program to allow me to enter a number with the EasyReader class and depending on the number entered it will show that specific line of this peom:
One two buckle your shoe
Three four shut the door
Five six pick up sticks
Seven eight lay them straight
Nine ten this is the end.
The error message i got was an illegal start of expression. I can't figure out why it is giving me this error because i have if (n = 1) || (n = 2) statements. My code is:
public class PoemSeventeen
public static void main(String[] args)
EasyReader console = new EasyReader();
System.out.println("Enter a number for the poem (0 to quit): ");
int n = console.readInt();
if (n = 1) || (n = 2)
System.out.println("One, two, buckle your shoe");
else if (n = 3) || (n = 4)
System.out.println("Three, four, shut the door");
else if (n = 5) || (n = 6)
System.out.println("Five, six, pick up sticks");
else if (n = 7) || (n = 8)
System.out.println("Seven, eight, lay them straight");
else if (n = 9) || (n = 10)
System.out.println("Nine, ten, this is the end");
else if (n = 0)
System.out.println("You may exit now");
else
System.out.println("Put in a number between 0 and 10");
I messed around with a few other thing because i had some weird errors before but now i have narrowed it down to just this 1 error.
The EasyReader class code:
// package com.skylit.io;
import java.io.*;
* @author Gary Litvin
* @version 1.2, 5/30/02
* Written as part of
* <i>Java Methods: An Introduction to Object-Oriented Programming</i>
* (Skylight Publishing 2001, ISBN 0-9654853-7-4)
* and
* <i>Java Methods AB: Data Structures</i>
* (Skylight Publishing 2003, ISBN 0-9654853-1-5)
* EasyReader provides simple methods for reading the console and
* for opening and reading text files. All exceptions are handled
* inside the class and are hidden from the user.
* <xmp>
* Example:
* =======
* EasyReader console = new EasyReader();
* System.out.print("Enter input file name: ");
* String fileName = console.readLine();
* EasyReader inFile = new EasyReader(fileName);
* if (inFile.bad())
* System.err.println("Can't open " + fileName);
* System.exit(1);
* String firstLine = inFile.readLine();
* if (!inFile.eof()) // or: if (firstLine != null)
* System.out.println("The first line is : " + firstLine);
* System.out.print("Enter the maximum number of integers to read: ");
* int maxCount = console.readInt();
* int k, count = 0;
* while (count < maxCount && !inFile.eof())
* k = inFile.readInt();
* if (!inFile.eof())
* // process or store this number
* count++;
* inFile.close(); // optional
* System.out.println(count + " numbers read");
* </xmp>
public class EasyReader
protected String myFileName;
protected BufferedReader myInFile;
protected int myErrorFlags = 0;
protected static final int OPENERROR = 0x0001;
protected static final int CLOSEERROR = 0x0002;
protected static final int READERROR = 0x0004;
protected static final int EOF = 0x0100;
* Constructor. Prepares console (System.in) for reading
public EasyReader()
myFileName = null;
myErrorFlags = 0;
myInFile = new BufferedReader(
new InputStreamReader(System.in), 128);
* Constructor. opens a file for reading
* @param fileName the name or pathname of the file
public EasyReader(String fileName)
myFileName = fileName;
myErrorFlags = 0;
try
myInFile = new BufferedReader(new FileReader(fileName), 1024);
catch (FileNotFoundException e)
myErrorFlags |= OPENERROR;
myFileName = null;
* Closes the file
public void close()
if (myFileName == null)
return;
try
myInFile.close();
catch (IOException e)
System.err.println("Error closing " + myFileName + "\n");
myErrorFlags |= CLOSEERROR;
* Checks the status of the file
* @return true if en error occurred opening or reading the file,
* false otherwise
public boolean bad()
return myErrorFlags != 0;
* Checks the EOF status of the file
* @return true if EOF was encountered in the previous read
* operation, false otherwise
public boolean eof()
return (myErrorFlags & EOF) != 0;
private boolean ready() throws IOException
return myFileName == null || myInFile.ready();
* Reads the next character from a file (any character including
* a space or a newline character).
* @return character read or <code>null</code> character
* (Unicode 0) if trying to read beyond the EOF
public char readChar()
char ch = '\u0000';
try
if (ready())
ch = (char)myInFile.read();
catch (IOException e)
if (myFileName != null)
System.err.println("Error reading " + myFileName + "\n");
myErrorFlags |= READERROR;
if (ch == '\u0000')
myErrorFlags |= EOF;
return ch;
* Reads from the current position in the file up to and including
* the next newline character. The newline character is thrown away
* @return the read string (excluding the newline character) or
* null if trying to read beyond the EOF
public String readLine()
String s = null;
try
s = myInFile.readLine();
catch (IOException e)
if (myFileName != null)
System.err.println("Error reading " + myFileName + "\n");
myErrorFlags |= READERROR;
if (s == null)
myErrorFlags |= EOF;
return s;
* Skips whitespace and reads the next word (a string of consecutive
* non-whitespace characters (up to but excluding the next space,
* newline, etc.)
* @return the read string or null if trying to read beyond the EOF
public String readWord()
StringBuffer buffer = new StringBuffer(128);
char ch = ' ';
int count = 0;
String s = null;
try
while (ready() && Character.isWhitespace(ch))
ch = (char)myInFile.read();
while (ready() && !Character.isWhitespace(ch))
count++;
buffer.append(ch);
myInFile.mark(1);
ch = (char)myInFile.read();
if (count > 0)
myInFile.reset();
s = buffer.toString();
else
myErrorFlags |= EOF;
catch (IOException e)
if (myFileName != null)
System.err.println("Error reading " + myFileName + "\n");
myErrorFlags |= READERROR;
return s;
* Reads the next integer (without validating its format)
* @return the integer read or 0 if trying to read beyond the EOF
public int readInt()
String s = readWord();
if (s != null)
return Integer.parseInt(s);
else
return 0;
* Reads the next double (without validating its format)
* @return the number read or 0 if trying to read beyond the EOF
public double readDouble()
String s = readWord();
if (s != null)
return Double.parseDouble(s);
// in Java 1, use: return Double.valueOf(s).doubleValue();
else
return 0.0;
Can anybody please tell me what's wrong with this code? ThanksString[] message = {
"One, two, buckle your shoe",
"One, two, buckle your shoe",
"Three, four, shut the door",
"Three, four, shut the door",
"Five, six, pick up sticks",
"Five, six, pick up sticks",
"Seven, eight, lay them straight",
"Seven, eight, lay them straight",
"Nine, ten, this is the end",
"Nine, ten, this is the end"
if(n>0)
System.out.println(message[n]);
else
System.exit(0); -
What's wrong with this code (in recursion there may be a problem )
// ELEMENTS OF TWO VECTORS ARE COMPARED HERE
// CHECK WHAT IS WRONG WITH THIS PGM
// there may be a problem in recursion
import java.util.*;
class Test
Vector phy,db;
public static void main(String adf[])
Vector pp1=new Vector();
Vector dp1=new Vector();
//adding elements to the vector
pp1.add("1");
pp1.add("a");
pp1.add("b");
pp1.add("h");
pp1.add("c");
dp1.add("q");
dp1.add("c");
dp1.add("h");
dp1.add("w");
dp1.add("t");
printVector(dp1);
printVector(pp1);
check2Vectors(pp1,dp1);
public static void printVector(Vector v1)
System.out.println("Vector size "+v1.size());
for(int i=0;i<v1.size();i++)
System.out.println(v1.get(i).toString());
public static void check2Vectors(Vector p,Vector d)
System.out.println("p.size() "+p.size()+" d.size() "+d.size());
printVector(p);
printVector(d);
for(int i=0;i<p.size();i++)
for(int j=0;j<d.size();j++)
System.out.println(" i= "+i+" j= "+j);
Object s1=p.elementAt(i);
Object s2=d.elementAt(j);
System.out.println("Checking "+s1+" and "+s2);
if(s1.equals(s2))
System.out.println("Equal and Removing "+s1+" and "+s2);
p.remove(i);
d.remove(j);
printVector(p);
printVector(d);
check2Vectors(p,d);
}//inner for
}//outer for
if(p.size()==0||d.size()==0)
System.out.println("Vector checking finished and both match");
else
System.out.println("Vector checking finished and both do not match");
}//method
}hi,
but the upper limit is changing everytime you call the function recursively
so there should not be any problem(i suppose)
my intension is to get the unmatched elements of the two vectors
suggest me changes and thanks in advancce
ashok
The problems comes from the fact that you remove
elements for a Vector while iterating in a loop where
the upper limit as been set to the initial size of the
Vector.
You should use so while loops with flexible stop
conditions that would work when the size of the Vector
changes.
Finally: why don't you use Vector.equals() ? -
Whats the problem with this page
hi,
i have problem with this page
page
it loading the video but not showing any content related to
the video.
i use
[code]
var netCon:NetConnection = new NetConnection();
netCon.connect(null);
var netStr:NetStream = new NetStream(netCon);
netStr.addEventListener(AsyncErrorEvent.ASYNC_ERROR,
getError);
var video:Video = new Video();
video.attachNetStream(netStr);
addChild(video);
video.x=201;
video.y=125;
function getError(e:AsyncErrorEvent) {
play_btn.addEventListener(MouseEvent.MOUSE_DOWN, playVideo);
function playVideo(e:MouseEvent) {
netStr.resume();
removeEventListener(KeyboardEvent.KEY_DOWN, keyPressHandler
this.addEventListener(Event.ENTER_FRAME, fileLoaded);
var loaderBar:Sprite = new Sprite();
addChild(loaderBar);
function fileLoaded(e:Event) {
var percent:Number = (netStr.bytesLoaded * 100 ) /
netStr.bytesTotal;
loaderBar.graphics.clear();
loaderBar.graphics.beginFill(0xDE2C18);
loaderBar.graphics.drawRect(205,378,percent * 4.32,5);
loaderBar.graphics.endFill();
if (percent==100) {
this.removeEventListener(Event.ENTER_FRAME, fileLoaded);
[/code]here is the full code
and i have an error saying:
ArgumentError: Error #2004: One of the parameters is
invalid.
at flash.display::Graphics/drawRect()
at VIDEOPLAYER_fla::MainTimeline/fileLoaded()
[code]
import flash.display.Sprite;
import flash.net.NetConnection;
import flash.display.SimpleButton;
import flash.net.NetStream;
import flash.events.NetStatusEvent;
import flash.media.Video;
import flash.events.MouseEvent;
import flash.events.KeyboardEvent;
import flash.events.Event;
import flash.display.Graphics;
import flash.text.*;
var netCon:NetConnection = new NetConnection();
netCon.connect(null);
var netStr:NetStream = new NetStream(netCon);
netStr.addEventListener(AsyncErrorEvent.ASYNC_ERROR,
getError);
var URL:String =
"/hakans/videos/BEDUK_AUTOMATIK00.flv?start=";
var offset:uint = 1048576;
var tamURL:String = URL + offset;
trace(tamURL);
var video:Video = new Video();
video.attachNetStream(netStr);
video.x=201;
video.y=125;
netCon = new NetConnection();
netCon.addEventListener(NetStatusEvent.NET_STATUS,
netStatusHandler);
netCon.addEventListener(SecurityErrorEvent.SECURITY_ERROR,
securityErrorHandler);
function netStatusHandler(event:NetStatusEvent):void {
switch (event.info.code) {
case "NetConnection.Connect.Success":
connectStream();
break;
case "NetStream.Play.StreamNotFound":
trace("Unable to locate video: " + tamURL);
break;
function connectStream():void {
netStr.addEventListener(NetStatusEvent.NET_STATUS,
netStatusHandler);
netStr.addEventListener(AsyncErrorEvent.ASYNC_ERROR,
asyncErrorHandler);
netStr.play(tamURL);
addChild(video);
function securityErrorHandler(event:SecurityErrorEvent):void
trace("securityErrorHandler: " + event);
function asyncErrorHandler(event:AsyncErrorEvent):void {
// ignore AsyncErrorEvent events.
function getError(e:AsyncErrorEvent) {
var myTextBox:TextField = new TextField();
var myText:String = "Bytes loaded";
function TextWithImage()
addChild(myTextBox);
myTextBox.text = myText+netStr.bytesLoaded;
/*--------------< Videoyu Durdurma, Oynatma ve Başa
Alma >------------------*/
stage.addEventListener( KeyboardEvent.KEY_DOWN,
keyPressHandler );
function keyPressHandler( e:KeyboardEvent ):void {
// if the spaceBar is pressed then toggle video play/pause
if( e.charCode == 32 ) {
netStr.togglePause();
play_btn.addEventListener(MouseEvent.MOUSE_DOWN, playVideo);
function playVideo(e:MouseEvent) {
netStr.resume();
removeEventListener(KeyboardEvent.KEY_DOWN, keyPressHandler
pause_btn.addEventListener(MouseEvent.MOUSE_DOWN,
pauseVideo);
function pauseVideo(e:MouseEvent) {
netStr.pause();
stop_btn.addEventListener(MouseEvent.MOUSE_DOWN, stopVideo);
function stopVideo(e:MouseEvent) {
netStr.pause();
netStr.seek(0);
fastforward_btn.addEventListener(MouseEvent.MOUSE_DOWN,doForward);
function doForward(e:MouseEvent):void {
var f:int = 1; //you can schange the skipping time here
netStr.pause();
netStr.seek(netStr.time + f);
netStr.resume();
rewind_btn.addEventListener(MouseEvent.MOUSE_DOWN,doRewind);
function doRewind(e:MouseEvent):void{
var x:int = 2;
netStr.pause();
netStr.seek(netStr.time - x);
netStr.resume();
fullscreen_btn.addEventListener(MouseEvent.MOUSE_DOWN,doFull);
function doFull(e:MouseEvent):void{
stage.displayState = StageDisplayState.FULL_SCREEN;
/*--------------< Videoyu Durdurma, Oynatma ve Başa
Alma / >------------------*/
/*--------------< Video İçin Yükleme Bilgi
Çubuğu >------------------*/
var loaderBg:Sprite = new Sprite();
loaderBg.graphics.beginFill(0xc78f8e);
loaderBg.graphics.drawRect(205 , 378 , 430 , 5);
loaderBg.graphics.endFill();
addChild(loaderBg);
this.addEventListener(Event.ENTER_FRAME, fileLoaded);
var loaderBar:Sprite = new Sprite();
addChild(loaderBar);
function fileLoaded(e:Event) {
var percent:Number = (netStr.bytesLoaded * 100 ) /
netStr.bytesTotal;
loaderBar.graphics.clear();
loaderBar.graphics.beginFill(0xDE2C18);
loaderBar.graphics.drawRect(205 , 378 , percent * 4.32 , 5);
loaderBar.graphics.endFill();
if (percent==100) {
this.removeEventListener(Event.ENTER_FRAME, fileLoaded);
/*--------------< Video İçin Yükleme Bilgi
Çubuğu / >------------------*/
/*--------------< Video Meta Bilgileri
>------------------*/
var metaObject:Object = new Object();
netStr.client = metaObject;
metaObject.onMetaData = getMetaInformation;
var lengthOfVideo:Number = 0;
function getMetaInformation(e:Object):void {
lengthOfVideo = e.duration;
trace("Genişlik :" + e.width);
trace("Yükseklik :" + e.height);
/*--------------< Video Meta Bilgileri /
>------------------*/
/*--------------< Videonun Durum Çubuğu
>------------------*/
//may cause problem part
var GraphicsExample :Sprite = new Sprite();
var size:uint = 10;
var bgColor:uint = 0x999999;
var borderColor:uint = 0x999999;
var borderSize:uint = 0;
var cornerRadius:uint = 9;
var gutter:uint = 5;
var dragBar:Sprite = new Sprite();
var halfSize:uint = Math.round(size / 2);
dragBar.graphics.beginFill(bgColor);
dragBar.graphics.lineStyle(borderSize, borderColor);
dragBar.graphics.drawCircle(halfSize, halfSize, halfSize);
dragBar.graphics.endFill();
dragBar.x=201;
dragBar.y=376;
addChild(dragBar);
var drag:Boolean = false;
this.addEventListener(Event.ENTER_FRAME, setDragBar);
function setDragBar(e:Event) {
if (!drag) {
dragBar.x = ((netStr.time / lengthOfVideo) * 429) + 201;
/*--------------< Videonun Durum Çubuğu /
>------------------*/
/*--------------< Videonun Kaydırma Çubuğu
>------------------*/
dragBar.addEventListener(MouseEvent.MOUSE_DOWN,
startDragging);
dragBar.addEventListener(MouseEvent.MOUSE_UP, stopDragging);
dragBar.buttonMode = true;
var rect:Rectangle = new Rectangle(205,378,429,0);
function startDragging(e:MouseEvent) {
drag = true;
netStr.pause();
dragBar.startDrag(false,rect);
function stopDragging(e:MouseEvent) {
dragBar.stopDrag();
drag = false;
netStr.resume();
this.addEventListener(Event.ENTER_FRAME, reSetVideo);
function reSetVideo(e:Event) {
if (drag) {
netStr.seek(Math.floor(((dragBar.x-201) / 429) *
lengthOfVideo ));
/*--------------< Videonun Kaydırma Çubuğu
/ >------------------*/
netStr.addEventListener(NetStatusEvent.NET_STATUS,
netStatusHandler1);
function netStatusHandler1(e:NetStatusEvent):void
switch (e.info.code)
case "NetStream.Seek.InvalidTime":
trace("You have seeked too far ahead, the video hasn't fully
loaded yet");
break;
case "NetStream.Play.StreamNotFound":
trace("Unable to locate video");
break;
/*--------------< Video Ses Kontrolü
>------------------*/
sound_btn.addEventListener(MouseEvent.MOUSE_DOWN, setSound);
var checkSound:Boolean = true;
var soundTrans:SoundTransform = new SoundTransform();
function setSound(e:MouseEvent) {
if (checkSound) {
soundTrans.volume = 0;
checkSound = false;
} else {
soundTrans.volume = 1;
checkSound =true;
netStr.soundTransform = soundTrans;
/*--------------< Video Ses Kontrolü /
>------------------*/
[/code] -
Display problems with this code
<tr>
<td class="atthetop">Display from : </td>
<!-- get the date from the recordset -->
<td><?php $date=new DateTime($row_Recordset1['event_entered']);
echo $date->format('d-M-Y') ?>
</td>
</tr>
<tr>
<td class="atthetop">to:</td>
<!-- add a period of months to the date -->
<td><?php $date->add(new DateInterval('P'.($row_Recordset1['event_expiry']).'M'));
echo $date->format('d-M-Y');?>
</td>
</tr>
<tr>
<td class="atthetop">For :</td>
<td><?php echo $row_Recordset1['event_expiry']." Months"; ?> </td>
</tr>
<tr>
<td class="atthetop">Entered :</td><!--/format the date and print it with the time-->
<td><?php $date=new DateTime($row_Recordset1['event_entered']);
echo $date->format('d-M-Y-\a\t h:i') ?></td>
</tr>
Above is a section of code that displays perfectly well in live view and in a browser when I use it on my own machine.
However, when I upload it to my website, it only displays the page down to where the smily is.
I assumed that the error is due to a small difference in the php variants, but it could also be something that is wrong with my code.
Can anyone help?
I am using Xamp 2.5 on my home machine. The web server is using php version 6 but version 5 is also enabled.
Its all written in html5 and php.Is there a way to compile with deprecation in TextPad?
I looked around and couldn't find anything. I
believe the problem is because of
Date enterDate = new Date(month + "/" + day + "/" +
year); . The format is probably wrong and the Date
method doesn't like it, at least that is my guess. I
have been programming in Java for about three weeks
now, it's my first Object Oriented language, so I'm
clueless on a lot of this stuff. Thanks for your
reply saturnblues.First off, deprecation means that while the method is still available, it's recommended not to use it. (It even may be removed in a later version?) But it's not a real error.
Secondly, you're right. The problem is with that line. See http://java.sun.com/j2se/1.4.1/docs/api/java/util/Date.html for details.
But what you could do, is something like Date enterDate = date.parse(month + "/" + day + "/" + year);
One bit of advice: please don't call your DateFormat 'date', as that may cause confusion. Let its name reflect what it represents or what type it is, and preferably both (for instance: 'myCustomDateFormat'). -
What's wrong with this code (AS3)?
I want to publish a live stream and, when a button is pressed, publish the same stream for vod. I haven't been able to get an answer as to whether I can do this...my code is below. Can someone please tell me if I can do this, or what may be wrong with my code?
The live stream and playback works fine; but the recording doesn't start. Also, I want other objects on the client, such as the current camera and audio information, and the aspect ratio being used. I havent' been able to get these to show up (i.e., the incomingLbl and outgoingLbl do not show up).
Thank you,
Phillip A
My code:
package {
import flash.display.MovieClip;
import flash.net.NetConnection;
import flash.events.NetStatusEvent;
import flash.events.MouseEvent;
import flash.events.AsyncErrorEvent;
import flash.net.NetStream;
import flash.media.Video;
import flash.media.Camera;
import flash.media.Microphone;
import fl.controls.Button;
import fl.controls.Label;
import fl.controls.TextArea;
import fl.controls.CheckBox;
public class vodcast1 extends MovieClip {
private var nc:NetConnection;
private var nc2:NetConnection;
private var ns:NetStream;
private var ns2:NetStream;
private var nsPlayer:NetStream;
private var vid:Video;
private var vidPlayer:Video;
private var cam:Camera;
private var mic:Microphone;
private var camr:Camera;
private var micr:Microphone;
private var clearBtn:Button;
private var startRecordBtn:Button;
private var outgoingLbl:Label;
private var incomingLbl:Label;
private var myMetadata:Object;
private var outputWindow:TextArea;
private var cb1:CheckBox;
public function vodcast1(){
setupUI();
nc = new NetConnection();
nc.addEventListener(NetStatusEvent.NET_STATUS, onNetStatus);
nc.connect("rtmp://localhost/publishLive");
nc2 = new NetConnection();
nc2.connect("rtmp://localhost/vod/videos");
nc2.addEventListener(NetStatusEvent.NET_STATUS, onNetStatus2);
private function startRecordHandler(event:MouseEvent):void {
publishRecordStream();
private function onNetStatus(event:NetStatusEvent):void {
trace(event.target + ": " + event.info.code);
switch (event.info.code)
case "NetConnection.Connect.Success":
trace("Congratulations! you're connected to live");
publishCamera();
displayPublishingVideo();
displayPlaybackVideo();
break;
case "NetStream.Publish.Start":
// NetStatus handler for Record stream
private function onNetStatus2(event:NetStatusEvent):void {
trace(event.target + ": " + event.info.code);
switch (event.info.code)
case "NetConnection.Connect.Success":
trace("Congratulations! you're connected to vod");
break;
case "NetConnection.Connect.Rejected":
case "NetConnection.Connect.Failed":
trace ("Oops! the connection was rejected");
break;
case "NetStream.Publish.Start":
sendMetadata();
break;
private function asyncErrorHandler(event:AsyncErrorEvent):void {
trace(event.text);
private function sendMetadata():void {
trace("sendMetaData() called")
myMetadata = new Object();
myMetadata.customProp = "Recording in progress";
ns.send("@setDataFrame", "onMetaData", myMetadata);
private function publishRecordStream():void {
camr = Camera.getCamera();
micr = Microphone.getMicrophone();
ns2 = new NetStream(nc2);
ns2.client = new Object();
ns2.addEventListener(NetStatusEvent.NET_STATUS, onNetStatus2);
ns2.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
ns2.attachCamera(camr);
ns2.attachAudio(micr);
ns2.publish("vodstream", "record");
private function publishCamera():void {
cam = Camera.getCamera();
mic = Microphone.getMicrophone();
ns = new NetStream(nc);
ns.client = this;
ns.addEventListener(NetStatusEvent.NET_STATUS, onNetStatus);
ns.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
ns.attachCamera(cam);
ns.attachAudio(mic);
ns.publish("livestream", "live");
private function displayPublishingVideo():void {
vid = new Video(cam.width, cam.height);
vid.x = 10;
vid.y = 30;
vid.attachCamera(cam);
addChild(vid);
private function displayPlaybackVideo():void {
nsPlayer = new NetStream(nc);
nsPlayer.client = this;
nsPlayer.addEventListener(NetStatusEvent.NET_STATUS, onNetStatus);
nsPlayer.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
nsPlayer.play("livestream");
vidPlayer = new Video(cam.width, cam.height);
vidPlayer.x = cam.width + 100;
vidPlayer.y = 30;
vidPlayer.attachNetStream(nsPlayer);
addChild(vidPlayer);
private function setupUI():void {
outputWindow = new TextArea();
outputWindow.move(250, 175);
outputWindow.width = 200;
outputWindow.height = 50;
outgoingLbl = new Label();
incomingLbl = new Label();
outgoingLbl.width = 100;
incomingLbl.width = 100;
outgoingLbl.text = "Publishing Stream";
incomingLbl.text = "Playback Stream";
outgoingLbl.move(20, 200);
incomingLbl.move(300, 200);
outgoingLbl.condenseWhite = true;
incomingLbl.condenseWhite = true;
startRecordBtn = new Button();
startRecordBtn.width = 150;
startRecordBtn.move(250, 345);
startRecordBtn.label = "Start Recording";
startRecordBtn.addEventListener(MouseEvent.CLICK, startRecordHandler);
//cb1 = new CheckBox();
//cb1.label = "Record";
//cb1.move(135,300);
//cb1.addEventListener(MouseEvent.CLICK,publishRecordStream);
//clearBtn = new Button();
// clearBtn.width = 100;
// clearBtn.move(135,345);
// clearBtn.label = "Clear Metadata";
// clearBtn.addEventListener(MouseEvent.CLICK, clearHandler);
addChild(outgoingLbl);
addChild(incomingLbl);
// addChild(clearBtn);
addChild(startRecordBtn);
// addChild(cb1);
addChild(outputWindow);
public function onMetaData(info:Object):void {
outputWindow.appendText(info.customProp);use event.currentTarget (and you don't need to repeatedly define the same function):
var c:int;
var buttonName:String;
for (c = 1;c < 5;c++) {
buttonNum = "button"+c;
this[buttonNum].addEventListener(MouseEvent.MOUSE_DOWN, pressStepButton);
function pressStepButton(event:MouseEvent) { trace(event.currentTarget,event.currentTarget.name); } -
FileFilter????What's wrong with this code???HELP!!
I want to limit the JFileChooser to display only txt and java file. But the code I wrote has error and I don't know what's wrong with it. can anyone help me to check it out? Thank you.
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class FileFilterTest extends JPanel
public static void main(String[] args)
new FileFilterTest();
public class fFilter implements FileFilter
public boolean accept(File file)
String name = file.getName();
if(name.toLowerCase().endsWith(".java") || name.toLowerCase().endsWith(".txt"))
return true;
else
return false;
public FileFilterTest()
JFileChooser fc = new JFileChooser();
fc.setFileFilter(new fFilter());
fc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
fc.setCurrentDirectory(new File(System.getProperty("user.dir")));
//fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
//fc.setMultiSelectionEnabled(true);
int returnVal = fc.showDialog(FileFilterTest.this, "Open File");
if(returnVal == JFileChooser.APPROVE_OPTION)
String file = fc.getSelectedFile().getPath();
if(file == null)
return;
else if(returnVal == JFileChooser.CANCEL_OPTION)
System.exit(0);
else
System.exit(0);
JFrame f = new JFrame();
FileFilterTest ff = new FileFilterTest();
f.setTitle("FileFilterTest");
f.setBackground(Color.lightGray);
f.getContentPane().add(ff, BorderLayout.CENTER);
f.setSize(800, 500);
f.setVisible(true);
}There are two file filters
class javax.swing.filechooser.FileFilter
interface java.io.FileFilter
In Swing you need to make a class which extends the first one and implements the second. Sometimes you may not need to implement the second, but it is more versitle to do so and requires no extra work. -
Crop Functio... what is wrong with this code???
Hi all,
I have created this method to crop my bufferedimage, but when i call it it does not seem to do anything. :(
Can anyone see what is wrong with it please?
Thank you for you help!
Claire
x
public BufferedImage cropImage()
mBufferedImageCrop = copy(mBufferedImage);
Graphics grphc = mBufferedImageCrop.getGraphics();
Rectangle desiredArea = new Rectangle(10,10,10,10);
BufferedImage sub_bi = mBufferedImageCrop.getSubimage(desiredArea.x, desiredArea.y,
desiredArea.width, desiredArea.height);
grphc = mBufferedImageCrop.getGraphics();
grphc.drawImage(sub_bi, desiredArea.x, desiredArea.y, this);
repaint();
return sub_bi;
}I call this method using:
displayPanel.cropImage();
displayPanel.validate();
repaint();ThanxI worked out the problem!
:) -
Can anybody tell me the problem with this code when compiled in jdk1.4
Can anybody help me find out the error in this code.
Try to drag a file from your desktop and drop it on the first textpane on my GUI. Then try to drag another file. This time the dragdrop event handler throws a null pointer exception. This happened when I compiled the code with jdk1.4. With jdk1.3 it is working fine. Actually, I need jdk1.4 to get the systemicons for the files I drop on my desktop.
/* Client.java*/
import java.util.Vector;
import java.util.Enumeration;
import java.util.Arrays;
import java.awt.*;
import java.awt.event.*;
import java.rmi.*;
import java.rmi.server.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.filechooser.*;
import java.io.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
import java.util.Iterator;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;
import java.util.Hashtable;
import javax.swing.text.*;
import javax.swing.event.*;
public class Client extends JFrame{
static String newline = System.getProperty("line.separator");
static Client client;
//ServerInterface server;
//ClientProperties clp;
Vector v1=new Vector();
ByteArrayOutputStream out;
Runtime r1;
//file objects,together with array of bytes
Hashtable files=new Hashtable(); //files sent
Hashtable rfiles=new Hashtable(); //files received
//file objects,together with button handlers
Hashtable hfiles=new Hashtable(); //files sent,files received
JButton button1=new JButton();
JButton button2=new JButton();
JButton button3=new JButton();
JLabel label1=new JLabel();
JLabel label2=new JLabel();
JLabel label3=new JLabel();
JLabel label4=new JLabel();
JLabel label5=new JLabel();
JLabel label6=new JLabel();
JLabel label7=new JLabel();
JLabel label8=new JLabel();
JOptionPane dialog=new JOptionPane();
JFileChooser chooser = new JFileChooser();
JPanel panel1;
JPanel panel2;
DropTarget dtarget;
DragSource dsource;
JTextPane textArea1=new JTextPane();
TextArea textArea2=new TextArea();
JTextPane textpanel=new JTextPane();
Style defstyle,style;
StyledDocument doc,doc1;
JPopupMenu popup;
JTree tree;
JScrollPane jsppane;
JScrollPane jsp,jsp2;
DefaultMutableTreeNode top;
Container cp;
private String toalias;
private String togroup;
private String fromalias;
private String fromgroup;
private boolean CONNECT;
public Client()
cp=getContentPane();
cp.setLayout(null);
setForeground(java.awt.Color.red);
setFont(new Font("Dialog", Font.PLAIN, 14));
setVisible(false);
label1.setText(" CHAT APPLICATION");
cp.add(label1);
label1.setFont(new Font("Dialog", Font.BOLD, 16));
label1.setBounds(72,20,319,30);
label2.setText("List of Users Connected.");
cp.add(label2);
label2.setForeground(java.awt.Color.blue);
label2.setFont(new Font("Dialog", Font.BOLD, 12));
label2.setBounds(24,60,192,26);
label8.setBounds(280,60,100,26);
cp.add(label8);
cp.add(textArea2);
textArea2.setBounds(204,120,268,90);
jsppane=new JScrollPane(textArea1);
doc1=textArea1.getStyledDocument();
jsppane.setBounds(12,264,456,109);
cp.add(jsppane);
label3.setText("TO::");
cp.add(label3);
label3.setFont(new Font("Dialog", Font.BOLD, 12));
label3.setBounds(12,228,36,20);
cp.add(label4);
label4.setBackground(java.awt.Color.lightGray);
label4.setBounds(60,228,172,19);
label5.setText("SERVER RESPONSE");
cp.add(label5);
label5.setFont(new Font("Dialog", Font.BOLD, 12));
label5.setBounds(204,96,204,21);
label7.setText("MESSAGE FOR YOU.");
cp.add(label7);
label7.setFont(new Font("Dialog", Font.BOLD, 14));
label7.setBounds(12,371,288,25);
jsp2=new JScrollPane(textpanel);
setTextPaneStyle();
jsp2.setBounds(12,401,456,109);
cp.add(jsp2);
button1.setLabel("Send");
button1.setEnabled(false);
cp.add(button1);
button1.setBackground(java.awt.Color.lightGray);
button1.setForeground(java.awt.Color.black);
button1.setFont(new Font("Dialog", Font.BOLD|Font.ITALIC, 10));
button1.setBounds(60,520,78,36);
button2.setLabel("Attach");
//button2.setEnabled(false);
cp.add(button2);
button2.setBackground(java.awt.Color.lightGray);
button2.setForeground(java.awt.Color.black);
button2.setFont(new Font("Dialog", Font.BOLD|Font.ITALIC, 10));
button2.setBounds(180,520,72,36);
button3.setLabel("Connect");
cp.add(button3);
button3.setBackground(java.awt.Color.lightGray);
button3.setForeground(java.awt.Color.black);
button3.setFont(new Font("Dialog", Font.BOLD|Font.ITALIC, 10));
button3.setBounds(288,520,72,33);
setSize(500,620);
show();
addWindowListener(new WindowEventHandler());
button1.addActionListener(new ButtonHandler());
button2.addActionListener(new ButtonHandler());
button3.addActionListener(new ButtonHandler());
textArea1.addContainerListener(new ComponentHandler());
dtarget=new DropTarget(textArea1,new DragDropHandler());
textArea2.setEnabled(false);
textpanel.setEnabled(false);
r1=Runtime.getRuntime();
r1.addShutdownHook(new onshutdown());
addMenu();
cp.repaint();
//adds attachments to the textArea1
synchronized private void addAttach(java.util.List fileList)
Iterator iterator=fileList.iterator();
JButton bw;
while(iterator.hasNext())
File file=(File)iterator.next();
Icon icon=chooser.getIcon(file);
bw=new JButton(icon);
bw.setBackground(java.awt.Color.gray);
bw.setToolTipText(file.getAbsolutePath());
bw.addMouseListener(new AttachmentHandler());
Dimension d1=new Dimension(icon.getIconWidth(),icon.getIconHeight());
bw.setMaximumSize(d1);
hfiles.put(bw,file);
textArea1.insertComponent(bw);
textArea1.setCaretPosition(doc1.getLength());
bw.setSize(icon.getIconWidth(),icon.getIconHeight());
//only one file at a time
break;
cp.repaint();
public void setAudioStream(ByteArrayOutputStream out)
this.out=out;
private void addMenu()
JMenuBar mbar=new JMenuBar();
mbar.setVisible(true);
mbar.setBounds(0,0,500,20);
mbar.setBackground(java.awt.Color.gray);
//first menu
JMenu m1=new JMenu("Connection");
m1.setBounds(0,0,80,20);
m1.setBackground(java.awt.Color.gray);
JMenuItem mitem1=new JMenuItem("Connect");
JMenuItem mitem2=new JMenuItem("Disconnect");
m1.add(mitem1);
m1.add(mitem2);
mitem1.addActionListener(new ButtonHandler());
mitem2.addActionListener(new ButtonHandler());
mbar.add(m1);
//second menu
JMenu m2=new JMenu("Send...");
m2.setBounds(90,0,80,20);
m2.setBackground(java.awt.Color.gray);
JMenuItem mitem3=new JMenuItem("Send");
JMenuItem mitem4=new JMenuItem("Send with Audio...");
mitem3.addActionListener(new ButtonHandler());
mitem4.addActionListener(new ButtonHandler());
m2.add(mitem3);
m2.add(mitem4);
mbar.add(m2);
cp.add(mbar);
private void setTextPaneStyle()
StyleContext stylecontext =StyleContext.getDefaultStyleContext();
defstyle=stylecontext.getStyle(StyleContext.DEFAULT_STYLE);
doc= textpanel.getStyledDocument();
//style 1
style= textpanel.addStyle("bold",defstyle);
StyleConstants.setBackground(style,Color.white);
StyleConstants.setForeground(style,Color.blue);
StyleConstants.setItalic(style, false);
StyleConstants.setBold(style, true);
StyleConstants.setFontSize(style,16);
//style 2
style= textpanel.addStyle("normal",defstyle);
StyleConstants.setBackground(style,Color.white);
StyleConstants.setForeground(style,Color.black);
StyleConstants.setItalic(style, false);
StyleConstants.setBold(style, false);
StyleConstants.setFontSize(style,14);
//style3
style= textpanel.addStyle("attach",defstyle);
StyleConstants.setBackground(style,Color.white);
StyleConstants.setForeground(style,Color.red);
StyleConstants.setItalic(style, true);
StyleConstants.setBold(style, false);
StyleConstants.setFontSize(style,12);
//remote method called by server
public void addClient(String alias,String group,JTree tree)
//if old client remove old tree
if(!alias.equals(""))
cp.remove(this.jsp);
//add new tree
this.tree=tree;
setTreeModel();
getSound(2);
if(!alias.equals(""))
textArea2.append("\nNew Client:" + alias + "has joined");
else
textArea2.append("\nYou have been connected to the Server.");
jsp=new JScrollPane(this.tree);
jsp.setBounds(12,96,168,120);
jsp.setBackground(java.awt.Color.lightGray);
cp.add(jsp);
this.tree.addMouseListener(new MouseHandler());
//remote method called by server
public void sendMessage(String str,Hashtable rfiles,String alias,String group) throws RemoteException
receiveMessage(str,rfiles,alias,group);
//remote method called by server
public void removeClient(JTree tree,String alias,String group) throws RemoteException
cp.remove(this.jsp);
this.tree=tree;
setTreeModel();
getSound(3);
jsp=new JScrollPane(this.tree);
jsp.setBounds(12,96,168,120);
jsp.setBackground(java.awt.Color.lightGray);
cp.add(jsp);
this.tree.addMouseListener(new MouseHandler());
textArea2.append("\nClient:" + alias + "has disconnected");
private void receiveMessage(String str,Hashtable rfiles,String alias,String group)
boolean flag=true;
UIManager.put("JFrame.activeTitleBackground", new Color(64,128,255));
UIManager.put("JFrame.activeTitleForeground", Color.white);
UIManager.put("JFrame.inactiveTitleBackground", new Color(128,128,128));
UIManager.put("JFrame.inactiveTitleForeground", Color.black);
SwingUtilities.updateComponentTreeUI(this);
try{
if(alias.equals(""))
doc.insertString(doc.getLength(),"CHATMASTER>>",textpanel.getStyle("bold"));
doc.insertString(doc.getLength(),str+ newline,textpanel.getStyle("normal"));
else
doc.insertString(doc.getLength(),alias + "@" + group + ">>",textpanel.getStyle("bold"));
doc.insertString(doc.getLength(),str,textpanel.getStyle("normal"));
//add files to textpanel
if(rfiles!=null && rfiles.size()>0)
doc.insertString(doc.getLength(),newline+"Attachments>>",textpanel.getStyle("attach"));
showattach(rfiles);
addtoList(rfiles);
doc.insertString(doc.getLength(),newline,textpanel.getStyle("normal"));
catch(Exception e)
e.printStackTrace();
dialog.showMessageDialog(client,e.toString(),"Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
cp.repaint();
protected boolean ContactServer(String alias,String servername,String group)
try{
//UnicastRemoteObject.exportObject(this);
//server=(ServerInterface)Naming.lookup("//gpt02d05:5500/" + servername);
// server.notifyMe(this,alias,group);
//change the settings of buttons
button1.setEnabled(true);
button2.setEnabled(true);
button3.setLabel("Disconnect");
label8.setVisible(true);
label8.setText(" Welcome::" + alias);
//putting values of alias and group for sending messages
fromalias=alias;
fromgroup=group;
CONNECT=true;
return true;
catch(UnsupportedOperationException e)
dialog.showMessageDialog(client,"Client with the Same Alias in " + group + " already exists","Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
try{
// UnicastRemoteObject.unexportObject(client,true);
catch(Exception ev){System.out.println(ev.toString());}
catch(Exception e)
dialog.showMessageDialog(client,"Unable to connect to Server","Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
try{
// UnicastRemoteObject.unexportObject(client,true);
catch(Exception ev){System.out.println(ev.toString());}
return false;
public static void main(String args[]) throws RemoteException{
client=new Client();
}//main ends
public void getSound(int count)
Toolkit t1=getToolkit();
for(int i=0;i<count;i++)
t1.beep();
try{
Thread.sleep(500);
catch(Exception e){}
public void setTreeModel()
ImageIcon i1=new ImageIcon("Lock.gif","No Users");
ImageIcon i2=new ImageIcon("Connec.gif","Users in Group");
ImageIcon i3=new ImageIcon("authorbn.gif","An User");
DefaultTreeCellRenderer dr1= new DefaultTreeCellRenderer();
dr1.setClosedIcon(i1);
dr1.setOpenIcon(i2);
dr1.setLeafIcon(i3);
dr1.setTextSelectionColor(java.awt.Color.red);
tree.setCellRenderer(dr1);
//add received files to the list
private void addtoList(Hashtable rfiles)
Enumeration filelist=rfiles.keys();
while(filelist.hasMoreElements())
File file=(File)filelist.nextElement();
this.rfiles.put(file,rfiles.get(file));
//show the attachments received
private void showattach(Hashtable rfiles)
Enumeration filelist=rfiles.keys();
dsource=DragSource.getDefaultDragSource();
JButton b1=null;
while(filelist.hasMoreElements())
File file=(File)filelist.nextElement();
Icon icon=chooser.getIcon(file);
b1=new JButton(icon);
b1.setBackground(java.awt.Color.gray);
b1.setToolTipText(file.getName());
b1.addMouseListener(new AttachmentHandler());
Dimension d1=new Dimension(icon.getIconWidth(),icon.getIconHeight());
b1.setMaximumSize(d1);
hfiles.put(b1,file);
textpanel.setCaretPosition(doc.getLength());
textpanel.insertComponent(b1);
b1.setSize(icon.getIconWidth(),icon.getIconHeight());
dsource.createDefaultDragGestureRecognizer(b1, DnDConstants.ACTION_COPY_OR_MOVE,new DragGestureHandler());
cp.repaint();
private void savefile(File file,Object parent)
//ExtensionFileFilter filter = new ExtensionFileFilter(false);
//filter.addExtension("txt",true);
//chooser.setFileFilter(filter);
int returnVal = chooser.showSaveDialog(client);
if(returnVal ==JFileChooser.APPROVE_OPTION)
try{
FileOutputStream fstream=new FileOutputStream(chooser.getSelectedFile());
//decide whether the file received or sent is to be saved
if(((Container)parent).equals(textArea1))
fstream.write((byte[])files.get(file));
else
fstream.write((byte[])rfiles.get(file));
fstream.close();
System.out.println(file.getName());
catch(Exception e)
{System.out.println(e.toString()); }
private void openfile(File file,Object parent)
File tempfile=null;
try{
String fname=file.getName();
tempfile=File.createTempFile("temp",fname.substring(fname.lastIndexOf(".")));
FileOutputStream fstream=new FileOutputStream(tempfile);
System.out.println(tempfile.getAbsolutePath());
//decide whether the file received or sent is to be saved
if(((Container)parent).equals(textArea1))
fstream.write((byte[])files.get(file));
else
fstream.write((byte[])rfiles.get(file));
fstream.close();
catch(Exception e){System.out.println(e.toString());}
try{
Process p1=r1.exec("cmd /c start " + tempfile.getAbsolutePath());
p1.waitFor();
catch(Exception e){System.out.println(e.toString());}
//inner classes
class ComponentHandler implements ContainerListener{
public void componentRemoved(ContainerEvent ev)
Container cont=(Container)ev.getChild();
if(cont.getComponentCount()>0)
JButton but=(JButton)cont.getComponent(0);
files.remove((File)hfiles.get(but));
hfiles.remove(but);
public void componentAdded(ContainerEvent ev){}
class AttachmentHandler extends MouseAdapter{
public void mouseClicked(MouseEvent ev){
if(ev.getModifiers()==4)
Component comp=(Component)ev.getSource();
File file=(File)hfiles.get(comp);
popup=new JPopupMenu();
JMenuItem popopen=new JMenuItem("Open");
JMenuItem popsave=new JMenuItem("Save As..");
popup.add(popopen);
System.out.println(comp.getParent().getParent().getClass().toString());
popopen.addActionListener(new ButtonHandler(file,comp.getParent().getParent()));
popup.add(popsave);
popsave.addActionListener(new ButtonHandler(file,comp.getParent().getParent()));
popup.show(comp,12,12);
class DragGestureHandler extends Vector implements DragGestureListener,DragSourceListener,Transferable{
final static int FILE = 0;
final static int STRING = 1;
final static int PLAIN = 2;
DataFlavor flavors[] = {DataFlavor.javaFileListFlavor,DataFlavor.stringFlavor,DataFlavor.plainTextFlavor};
public void dragDropEnd(DragSourceDropEvent ev){}
public void dragEnter(DragSourceDragEvent ev){}
public void dragExit(DragSourceEvent ev){}
public void dragOver(DragSourceDragEvent ev){}
public void dropActionChanged(DragSourceDragEvent ev){}
public void dragGestureRecognized(DragGestureEvent ev)
System.out.println("recognized");
File file=(File)hfiles.get(ev.getComponent());
addElement(file);
ev.startDrag(DragSource.DefaultCopyDrop,this,this);
/* Returns the array of flavors in which it can provide the data. */
public synchronized DataFlavor[] getTransferDataFlavors() {
return flavors;
/* Returns whether the requested flavor is supported by this object. */
public boolean isDataFlavorSupported(DataFlavor flavor) {
boolean b = false;
b |=flavor.equals(flavors[FILE]);
b |= flavor.equals(flavors[STRING]);
b |= flavor.equals(flavors[PLAIN]);
return (b);
public synchronized Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException,IOException
if(flavor.equals(flavors[FILE])){return this;}
else if (flavor.equals(flavors[PLAIN])) {
return new StringReader(((File)elementAt(0)).getAbsolutePath());
} else if (flavor.equals(flavors[STRING])) {
return((File)elementAt(0)).getAbsolutePath();
} else {
throw new UnsupportedFlavorException(flavor);
//inner class for draging in the files on java frame
class DragDropHandler implements DropTargetListener{
public void dragEnter(DropTargetDragEvent ev){
public void dragExit(DropTargetEvent ev){
public void dragOver(DropTargetDragEvent ev){
public void drop(DropTargetDropEvent ev){
Transferable tf1=ev.getTransferable();
DataFlavor fl[]=ev.getCurrentDataFlavors();
if(ev.isDataFlavorSupported(DataFlavor.javaFileListFlavor))
ev.acceptDrop (DnDConstants.ACTION_COPY_OR_MOVE);
try{
java.util.List fileList = (java.util.List)tf1.getTransferData(DataFlavor.javaFileListFlavor);
Iterator iterator = fileList.iterator();
while (iterator.hasNext())
File file = (File)iterator.next();
if(file.isFile())
Icon icon=chooser.getIcon(file);
FileInputStream fstream=new FileInputStream(file);
int filedata=(new Double(file.length())).intValue();
byte bytes[]=new byte[filedata];
fstream.read(bytes);
files.put(file,bytes);
ev.getDropTargetContext().dropComplete(true);
addAttach(fileList);
catch(Exception e)
{System.out.println(e.toString() + "here");}
public void dropActionChanged(DropTargetDragEvent ev){
class MouseHandler extends MouseAdapter{
public void mouseClicked(MouseEvent me)
TreePath tp=tree.getPathForLocation(me.getX(),me.getY());
if(tp!=null)
if(tp.getPathCount()==3)
toalias=tp.getPathComponent(2).toString();
togroup=tp.getPathComponent(1).toString();
System.out.println(toalias);
if (!(toalias.equals(fromalias) && togroup.equals(fromgroup)))
System.out.println("hh " + toalias);
label4.setText(tp.getPathComponent(2).toString() + "_@" + tp.getPathComponent(1).toString());
class ButtonHandler implements ActionListener{
private File file;
private Object parent;
//constructors
public ButtonHandler()
public ButtonHandler(File file,Object parent)
this.file=file;
this.parent=parent;
//other functions
public void actionPerformed(ActionEvent ev){
String s=ev.getActionCommand();
System.out.println(s);
if(s.equals("Send with Audio..."))
//Audio audio=new Audio(client,false,"CAPTURE");
if(s.equals("Disconnect"))
try{
// server.disconnect(client);
client.getSound(3);
cp.remove(jsp);
label6.setVisible(false);
//UnicastRemoteObject.unexportObject(client,true);
button3.setLabel("Connect");
textArea2.append("\nYou have been disconnected to Server");
client.repaint();
catch(Exception e)
System.out.println(e.toString());
if(s.equals("Connect"))
// clp=new ClientProperties(client,false);
if(s.equals("Save As.."))
savefile(file,parent);
if(s.equals("Open"))
openfile(file,parent);
if(s.equals("Attach"))
//ExtensionFileFilter filter = new ExtensionFileFilter(false);
//filter.addExtension(".txt",true);
//filter.setDescription("Text Files(.txt)");
// chooser.setFileFilter(filter);
chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
//chooser.setMultiSelectionEnabled(true);
int returnVal = chooser.showOpenDialog(client);
if(returnVal ==JFileChooser.APPROVE_OPTION)
//File fp[]=chooser.getSelectedFiles();
File fp[]=new File[1];
fp[0]=chooser.getSelectedFile();
int i=0;
while(i<fp.length)
try{
File file=fp;
Icon icon=chooser.getIcon(file);
FileInputStream fstream=new FileInputStream(file);
int filedata=(new Double(file.length())).intValue();
byte bytes[]=new byte[filedata];
fstream.read(bytes);
files.put(file,bytes);
catch(Exception e){dialog.showMessageDialog(client,e.toString(),"Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
return; }
i++;
java.util.List fileList=Arrays.asList(fp);
addAttach(fileList);
if(s.equals("Send"))
try{
if(toalias==null)
dialog.showMessageDialog(client,"Select the Recepient First!!","Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
return;
if(toalias!=null && togroup!=null && (!toalias.equals(fromalias)))
// server.sendMessage(textArea1.getText(),files,toalias,togroup,fromalias,fromgroup);
textArea1.setText("");
catch(Exception e)
e.printStackTrace();
}//if ends
class WindowEventHandler extends WindowAdapter{
public void windowClosing(WindowEvent ev){
try{
//server.disconnect(client);
client.getSound(3);
// UnicastRemoteObject.unexportObject(client,true);
catch(Exception e){System.out.println(e.toString());}
dispose();
private class onshutdown extends Thread{
public void run(){
try{
//server.disconnect(client);
//UnicastRemoteObject.unexportObject(client,true);
catch(Exception e){}
}//run endsHere is the working code :
There was an error line 724
File file=fp; -> File file=fp[0];
Several method were deprecated and try to replace the deprecated static field : DataFlavor.plainTextFlavor which was deprecated since 1.4.
/* Client.java*/
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.rmi.*;
import java.rmi.server.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.filechooser.*;
import java.io.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;
import javax.swing.text.*;
import javax.swing.event.*;
public class Client extends JFrame{
static String newline = System.getProperty("line.separator");
static Client client;
//ServerInterface server;
//ClientProperties clp;
Vector v1=new Vector();
ByteArrayOutputStream out;
Runtime r1;
//file objects,together with array of bytes
Hashtable files=new Hashtable(); //files sent
Hashtable rfiles=new Hashtable(); //files received
//file objects,together with button handlers
Hashtable hfiles=new Hashtable(); //files sent,files received
JButton button1=new JButton();
JButton button2=new JButton();
JButton button3=new JButton();
JLabel label1=new JLabel();
JLabel label2=new JLabel();
JLabel label3=new JLabel();
JLabel label4=new JLabel();
JLabel label5=new JLabel();
JLabel label6=new JLabel();
JLabel label7=new JLabel();
JLabel label8=new JLabel();
JOptionPane dialog=new JOptionPane();
JFileChooser chooser = new JFileChooser();
JPanel panel1;
JPanel panel2;
DropTarget dtarget;
DragSource dsource;
JTextPane textArea1=new JTextPane();
TextArea textArea2=new TextArea();
JTextPane textpanel=new JTextPane();
Style defstyle,style;
StyledDocument doc,doc1;
JPopupMenu popup;
JTree tree;
JScrollPane jsppane;
JScrollPane jsp,jsp2;
DefaultMutableTreeNode top;
Container cp;
private String toalias;
private String togroup;
private String fromalias;
private String fromgroup;
private boolean CONNECT;
public Client()
cp=getContentPane();
cp.setLayout(null);
setForeground(java.awt.Color.red);
setFont(new Font("Dialog", Font.PLAIN, 14));
setVisible(false);
label1.setText(" CHAT APPLICATION");
cp.add(label1);
label1.setFont(new Font("Dialog", Font.BOLD, 16));
label1.setBounds(72,20,319,30);
label2.setText("List of Users Connected.");
cp.add(label2);
label2.setForeground(java.awt.Color.blue);
label2.setFont(new Font("Dialog", Font.BOLD, 12));
label2.setBounds(24,60,192,26);
label8.setBounds(280,60,100,26);
cp.add(label8);
cp.add(textArea2);
textArea2.setBounds(204,120,268,90);
jsppane=new JScrollPane(textArea1);
doc1=textArea1.getStyledDocument();
jsppane.setBounds(12,264,456,109);
cp.add(jsppane);
label3.setText("TO::");
cp.add(label3);
label3.setFont(new Font("Dialog", Font.BOLD, 12));
label3.setBounds(12,228,36,20);
cp.add(label4);
label4.setBackground(java.awt.Color.lightGray);
label4.setBounds(60,228,172,19);
label5.setText("SERVER RESPONSE");
cp.add(label5);
label5.setFont(new Font("Dialog", Font.BOLD, 12));
label5.setBounds(204,96,204,21);
label7.setText("MESSAGE FOR YOU.");
cp.add(label7);
label7.setFont(new Font("Dialog", Font.BOLD, 14));
label7.setBounds(12,371,288,25);
jsp2=new JScrollPane(textpanel);
setTextPaneStyle();
jsp2.setBounds(12,401,456,109);
cp.add(jsp2);
button1.setText("Send");
button1.setEnabled(false);
cp.add(button1);
button1.setBackground(java.awt.Color.lightGray);
button1.setForeground(java.awt.Color.black);
button1.setFont(new Font("Dialog", Font.BOLD|Font.ITALIC, 10));
button1.setBounds(60,520,78,36);
button2.setText("Attach");
//button2.setEnabled(false);
cp.add(button2);
button2.setBackground(java.awt.Color.lightGray);
button2.setForeground(java.awt.Color.black);
button2.setFont(new Font("Dialog", Font.BOLD|Font.ITALIC, 10));
button2.setBounds(180,520,72,36);
button3.setText("Connect");
cp.add(button3);
button3.setBackground(java.awt.Color.lightGray);
button3.setForeground(java.awt.Color.black);
button3.setFont(new Font("Dialog", Font.BOLD|Font.ITALIC, 10));
button3.setBounds(288,520,72,33);
setSize(500,620);
show();
addWindowListener(new WindowEventHandler());
button1.addActionListener(new ButtonHandler());
button2.addActionListener(new ButtonHandler());
button3.addActionListener(new ButtonHandler());
textArea1.addContainerListener(new ComponentHandler());
dtarget=new DropTarget(textArea1,new DragDropHandler());
textArea2.setEnabled(false);
textpanel.setEnabled(false);
r1=Runtime.getRuntime();
r1.addShutdownHook(new onshutdown());
addMenu();
cp.repaint();
//adds attachments to the textArea1
synchronized private void addAttach(java.util.List fileList)
Iterator iterator=fileList.iterator();
JButton bw;
while(iterator.hasNext())
File file=(File)iterator.next();
Icon icon=chooser.getIcon(file);
bw=new JButton(icon);
bw.setBackground(java.awt.Color.gray);
bw.setToolTipText(file.getAbsolutePath());
bw.addMouseListener(new AttachmentHandler());
Dimension d1=new Dimension(icon.getIconWidth(),icon.getIconHeight());
bw.setMaximumSize(d1);
hfiles.put(bw,file);
textArea1.insertComponent(bw);
textArea1.setCaretPosition(doc1.getLength());
bw.setSize(icon.getIconWidth(),icon.getIconHeight());
//only one file at a time
break;
cp.repaint();
public void setAudioStream(ByteArrayOutputStream out)
this.out=out;
private void addMenu()
JMenuBar mbar=new JMenuBar();
mbar.setVisible(true);
mbar.setBounds(0,0,500,20);
mbar.setBackground(java.awt.Color.gray);
//first menu
JMenu m1=new JMenu("Connection");
m1.setBounds(0,0,80,20);
m1.setBackground(java.awt.Color.gray);
JMenuItem mitem1=new JMenuItem("Connect");
JMenuItem mitem2=new JMenuItem("Disconnect");
m1.add(mitem1);
m1.add(mitem2);
mitem1.addActionListener(new ButtonHandler());
mitem2.addActionListener(new ButtonHandler());
mbar.add(m1);
//second menu
JMenu m2=new JMenu("Send...");
m2.setBounds(90,0,80,20);
m2.setBackground(java.awt.Color.gray);
JMenuItem mitem3=new JMenuItem("Send");
JMenuItem mitem4=new JMenuItem("Send with Audio...");
mitem3.addActionListener(new ButtonHandler());
mitem4.addActionListener(new ButtonHandler());
m2.add(mitem3);
m2.add(mitem4);
mbar.add(m2);
cp.add(mbar);
private void setTextPaneStyle()
StyleContext stylecontext =StyleContext.getDefaultStyleContext();
defstyle=stylecontext.getStyle(StyleContext.DEFAULT_STYLE);
doc= textpanel.getStyledDocument();
//style 1
style= textpanel.addStyle("bold",defstyle);
StyleConstants.setBackground(style,Color.white);
StyleConstants.setForeground(style,Color.blue);
StyleConstants.setItalic(style, false);
StyleConstants.setBold(style, true);
StyleConstants.setFontSize(style,16);
//style 2
style= textpanel.addStyle("normal",defstyle);
StyleConstants.setBackground(style,Color.white);
StyleConstants.setForeground(style,Color.black);
StyleConstants.setItalic(style, false);
StyleConstants.setBold(style, false);
StyleConstants.setFontSize(style,14);
//style3
style= textpanel.addStyle("attach",defstyle);
StyleConstants.setBackground(style,Color.white);
StyleConstants.setForeground(style,Color.red);
StyleConstants.setItalic(style, true);
StyleConstants.setBold(style, false);
StyleConstants.setFontSize(style,12);
//remote method called by server
public void addClient(String alias,String group,JTree tree)
//if old client remove old tree
if(!alias.equals(""))
cp.remove(this.jsp);
//add new tree
this.tree=tree;
setTreeModel();
getSound(2);
if(!alias.equals(""))
textArea2.append("\nNew Client:" + alias + "has joined");
else
textArea2.append("\nYou have been connected to the Server.");
jsp=new JScrollPane(this.tree);
jsp.setBounds(12,96,168,120);
jsp.setBackground(java.awt.Color.lightGray);
cp.add(jsp);
this.tree.addMouseListener(new MouseHandler());
//remote method called by server
public void sendMessage(String str,Hashtable rfiles,String alias,String group) throws RemoteException
receiveMessage(str,rfiles,alias,group);
//remote method called by server
public void removeClient(JTree tree,String alias,String group) throws RemoteException
cp.remove(this.jsp);
this.tree=tree;
setTreeModel();
getSound(3);
jsp=new JScrollPane(this.tree);
jsp.setBounds(12,96,168,120);
jsp.setBackground(java.awt.Color.lightGray);
cp.add(jsp);
this.tree.addMouseListener(new MouseHandler());
textArea2.append("\nClient:" + alias + "has disconnected");
private void receiveMessage(String str,Hashtable rfiles,String alias,String group)
boolean flag=true;
UIManager.put("JFrame.activeTitleBackground", new Color(64,128,255));
UIManager.put("JFrame.activeTitleForeground", Color.white);
UIManager.put("JFrame.inactiveTitleBackground", new Color(128,128,128));
UIManager.put("JFrame.inactiveTitleForeground", Color.black);
SwingUtilities.updateComponentTreeUI(this);
try{
if(alias.equals(""))
doc.insertString(doc.getLength(),"CHATMASTER>>",textpanel.getStyle("bold"));
doc.insertString(doc.getLength(),str+ newline,textpanel.getStyle("normal"));
else
doc.insertString(doc.getLength(),alias + "@" + group + ">>",textpanel.getStyle("bold"));
doc.insertString(doc.getLength(),str,textpanel.getStyle("normal"));
//add files to textpanel
if(rfiles!=null && rfiles.size()>0)
doc.insertString(doc.getLength(),newline+"Attachments>>",textpanel.getStyle("attach"));
showattach(rfiles);
addtoList(rfiles);
doc.insertString(doc.getLength(),newline,textpanel.getStyle("normal"));
catch(Exception e)
e.printStackTrace();
dialog.showMessageDialog(client,e.toString(),"Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
cp.repaint();
protected boolean ContactServer(String alias,String servername,String group)
try{
//UnicastRemoteObject.exportObject(this);
//server=(ServerInterface)Naming.lookup("//gpt02d05:5500/" + servername);
// server.notifyMe(this,alias,group);
//change the settings of buttons
button1.setEnabled(true);
button2.setEnabled(true);
button3.setText("Disconnect");
label8.setVisible(true);
label8.setText(" Welcome::" + alias);
//putting values of alias and group for sending messages
fromalias=alias;
fromgroup=group;
CONNECT=true;
return true;
catch(UnsupportedOperationException e)
dialog.showMessageDialog(client,"Client with the Same Alias in " + group + " already exists","Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
try{
// UnicastRemoteObject.unexportObject(client,true);
catch(Exception ev){System.out.println(ev.toString());}
catch(Exception e)
dialog.showMessageDialog(client,"Unable to connect to Server","Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
try{
// UnicastRemoteObject.unexportObject(client,true);
catch(Exception ev){System.out.println(ev.toString());}
return false;
public static void main(String args[]) throws RemoteException{
client=new Client();
}//main ends
public void getSound(int count)
Toolkit t1=getToolkit();
for(int i=0;i<count;i++)
t1.beep();
try{
Thread.sleep(500);
catch(Exception e){}
public void setTreeModel()
ImageIcon i1=new ImageIcon("Lock.gif","No Users");
ImageIcon i2=new ImageIcon("Connec.gif","Users in Group");
ImageIcon i3=new ImageIcon("authorbn.gif","An User");
DefaultTreeCellRenderer dr1= new DefaultTreeCellRenderer();
dr1.setClosedIcon(i1);
dr1.setOpenIcon(i2);
dr1.setLeafIcon(i3);
dr1.setTextSelectionColor(java.awt.Color.red);
tree.setCellRenderer(dr1);
//add received files to the list
private void addtoList(Hashtable rfiles)
Enumeration filelist=rfiles.keys();
while(filelist.hasMoreElements())
File file=(File)filelist.nextElement();
this.rfiles.put(file,rfiles.get(file));
//show the attachments received
private void showattach(Hashtable rfiles)
Enumeration filelist=rfiles.keys();
dsource=DragSource.getDefaultDragSource();
JButton b1=null;
while(filelist.hasMoreElements())
File file=(File)filelist.nextElement();
Icon icon=chooser.getIcon(file);
b1=new JButton(icon);
b1.setBackground(java.awt.Color.gray);
b1.setToolTipText(file.getName());
b1.addMouseListener(new AttachmentHandler());
Dimension d1=new Dimension(icon.getIconWidth(),icon.getIconHeight());
b1.setMaximumSize(d1);
hfiles.put(b1,file);
textpanel.setCaretPosition(doc.getLength());
textpanel.insertComponent(b1);
b1.setSize(icon.getIconWidth(),icon.getIconHeight());
dsource.createDefaultDragGestureRecognizer(b1, DnDConstants.ACTION_COPY_OR_MOVE,new DragGestureHandler());
cp.repaint();
private void savefile(File file,Object parent)
//ExtensionFileFilter filter = new ExtensionFileFilter(false);
//filter.addExtension("txt",true);
//chooser.setFileFilter(filter);
int returnVal = chooser.showSaveDialog(client);
if(returnVal ==JFileChooser.APPROVE_OPTION)
try{
FileOutputStream fstream=new FileOutputStream(chooser.getSelectedFile());
//decide whether the file received or sent is to be saved
if(((Container)parent).equals(textArea1))
fstream.write((byte[])files.get(file));
else
fstream.write((byte[])rfiles.get(file));
fstream.close();
System.out.println(file.getName());
catch(Exception e)
{System.out.println(e.toString()); }
private void openfile(File file,Object parent)
File tempfile=null;
try{
String fname=file.getName();
tempfile=File.createTempFile("temp",fname.substring(fname.lastIndexOf(".")));
FileOutputStream fstream=new FileOutputStream(tempfile);
System.out.println(tempfile.getAbsolutePath());
//decide whether the file received or sent is to be saved
if(((Container)parent).equals(textArea1))
fstream.write((byte[])files.get(file));
else
fstream.write((byte[])rfiles.get(file));
fstream.close();
catch(Exception e){System.out.println(e.toString());}
try{
Process p1=r1.exec("cmd /c start " + tempfile.getAbsolutePath());
p1.waitFor();
catch(Exception e){System.out.println(e.toString());}
//inner classes
class ComponentHandler implements ContainerListener{
public void componentRemoved(ContainerEvent ev)
Container cont=(Container)ev.getChild();
if(cont.getComponentCount()>0)
JButton but=(JButton)cont.getComponent(0);
files.remove((File)hfiles.get(but));
hfiles.remove(but);
public void componentAdded(ContainerEvent ev){}
class AttachmentHandler extends MouseAdapter{
public void mouseClicked(MouseEvent ev){
if(ev.getModifiers()==4)
Component comp=(Component)ev.getSource();
File file=(File)hfiles.get(comp);
popup=new JPopupMenu();
JMenuItem popopen=new JMenuItem("Open");
JMenuItem popsave=new JMenuItem("Save As..");
popup.add(popopen);
System.out.println(comp.getParent().getParent().getClass().toString());
popopen.addActionListener(new ButtonHandler(file,comp.getParent().getParent()));
popup.add(popsave);
popsave.addActionListener(new ButtonHandler(file,comp.getParent().getParent()));
popup.show(comp,12,12);
class DragGestureHandler extends Vector implements DragGestureListener,DragSourceListener,Transferable{
final static int FILE = 0;
final static int STRING = 1;
final static int PLAIN = 2;
DataFlavor flavors[] = {DataFlavor.javaFileListFlavor,DataFlavor.stringFlavor,DataFlavor.plainTextFlavor};
public void dragDropEnd(DragSourceDropEvent ev){}
public void dragEnter(DragSourceDragEvent ev){}
public void dragExit(DragSourceEvent ev){}
public void dragOver(DragSourceDragEvent ev){}
public void dropActionChanged(DragSourceDragEvent ev){}
public void dragGestureRecognized(DragGestureEvent ev)
System.out.println("recognized");
File file=(File)hfiles.get(ev.getComponent());
addElement(file);
ev.startDrag(DragSource.DefaultCopyDrop,this,this);
/* Returns the array of flavors in which it can provide the data. */
public synchronized DataFlavor[] getTransferDataFlavors() {
return flavors;
/* Returns whether the requested flavor is supported by this object. */
public boolean isDataFlavorSupported(DataFlavor flavor) {
boolean b = false;
b |=flavor.equals(flavors[FILE]);
b |= flavor.equals(flavors[STRING]);
b |= flavor.equals(flavors[PLAIN]);
return (b);
public synchronized Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException,IOException
if(flavor.equals(flavors[FILE])){return this;}
else if (flavor.equals(flavors[PLAIN])) {
return new StringReader(((File)elementAt(0)).getAbsolutePath());
} else if (flavor.equals(flavors[STRING])) {
return((File)elementAt(0)).getAbsolutePath();
} else {
throw new UnsupportedFlavorException(flavor);
//inner class for draging in the files on java frame
class DragDropHandler implements DropTargetListener{
public void dragEnter(DropTargetDragEvent ev){
public void dragExit(DropTargetEvent ev){
public void dragOver(DropTargetDragEvent ev){
public void drop(DropTargetDropEvent ev){
Transferable tf1=ev.getTransferable();
DataFlavor fl[]=ev.getCurrentDataFlavors();
if(ev.isDataFlavorSupported(DataFlavor.javaFileListFlavor))
ev.acceptDrop (DnDConstants.ACTION_COPY_OR_MOVE);
try{
java.util.List fileList = (java.util.List)tf1.getTransferData(DataFlavor.javaFileListFlavor);
Iterator iterator = fileList.iterator();
while (iterator.hasNext())
File file = (File)iterator.next();
if(file.isFile())
Icon icon=chooser.getIcon(file);
FileInputStream fstream=new FileInputStream(file);
int filedata=(new Double(file.length())).intValue();
byte bytes[]=new byte[filedata];
fstream.read(bytes);
files.put(file,bytes);
ev.getDropTargetContext().dropComplete(true);
addAttach(fileList);
catch(Exception e)
{System.out.println(e.toString() + "here");}
public void dropActionChanged(DropTargetDragEvent ev){
class MouseHandler extends MouseAdapter{
public void mouseClicked(MouseEvent me)
TreePath tp=tree.getPathForLocation(me.getX(),me.getY());
if(tp!=null)
if(tp.getPathCount()==3)
toalias=tp.getPathComponent(2).toString();
togroup=tp.getPathComponent(1).toString();
System.out.println(toalias);
if (!(toalias.equals(fromalias) && togroup.equals(fromgroup)))
System.out.println("hh " + toalias);
label4.setText(tp.getPathComponent(2).toString() + "_@" + tp.getPathComponent(1).toString());
class ButtonHandler implements ActionListener{
private File file;
private Object parent;
//constructors
public ButtonHandler()
public ButtonHandler(File file,Object parent)
this.file=file;
this.parent=parent;
//other functions
public void actionPerformed(ActionEvent ev){
String s=ev.getActionCommand();
System.out.println(s);
if(s.equals("Send with Audio..."))
//Audio audio=new Audio(client,false,"CAPTURE");
if(s.equals("Disconnect"))
try{
// server.disconnect(client);
client.getSound(3);
cp.remove(jsp);
label6.setVisible(false);
//UnicastRemoteObject.unexportObject(client,true);
button3.setText("Connect");
textArea2.append("\nYou have been disconnected to Server");
client.repaint();
catch(Exception e)
System.out.println(e.toString());
if(s.equals("Connect"))
// clp=new ClientProperties(client,false);
if(s.equals("Save As.."))
savefile(file,parent);
if(s.equals("Open"))
openfile(file,parent);
if(s.equals("Attach"))
//ExtensionFileFilter filter = new ExtensionFileFilter(false);
//filter.addExtension(".txt",true);
//filter.setDescription("Text Files(.txt)");
// chooser.setFileFilter(filter);
chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
//chooser.setMultiSelectionEnabled(true);
int returnVal = chooser.showOpenDialog(client);
if(returnVal ==JFileChooser.APPROVE_OPTION)
//File fp[]=chooser.getSelectedFiles();
File fp[]=new File[1];
fp[0]=chooser.getSelectedFile();
int i=0;
while(i<fp.length)
try{
File file=fp[0];
Icon icon=chooser.getIcon(file);
FileInputStream fstream=new FileInputStream(file);
int filedata=(new Double(file.length())).intValue();
byte bytes[]=new byte[filedata];
fstream.read(bytes);
files.put(file,bytes);
catch(Exception e){dialog.showMessageDialog(client,e.toString(),"Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
return; }
i++;
java.util.List fileList=Arrays.asList(fp);
addAttach(fileList);
if(s.equals("Send"))
try{
if(toalias==null)
dialog.showMessageDialog(client,"Select the Recepient First!!","Error:ChatApplication",JOptionPane.ERROR_MESSAGE);
return;
if(toalias!=null && togroup!=null && (!toalias.equals(fromalias)))
// server.sendMessage(textArea1.getText(),files,toalias,togroup,fromalias,fromgroup);
textArea1.setText("");
catch(Exception e)
e.printStackTrace();
}//if ends
class WindowEventHandler extends WindowAdapter{
public void windowClosing(WindowEvent ev){
try{
//server.disconnect(client);
client.getSound(3);
// UnicastRemoteObject.unexportObject(client,true);
catch(Exception e){System.out.println(e.toString());}
dispose();
private class onshutdown extends Thread{
public void run(){
try{
//server.disconnect(client);
//UnicastRemoteObject.unexportObject(client,true);
catch(Exception e){}
}//run ends
I hope this helps,
Denis -
Help!!! What's wrong with this code. JSP page can't retrieve properties.
I'v got a piece of code that was created to send some parameters to JSP page via POST method. But in server page I can't retrieve this parameters, please help me and try to find "main" bug in this code.
try {
URL url = new URL("http://localhost/index.jsp");
HttpURLConnection httpCon = (HttpURLConnection)url.openConnection();
httpCon.setRequestMethod( "POST" );
httpCon.setDoOutput( true );
String body = URLEncoder.encode("name=Oleg", "UTF-8");
httpCon.setRequestProperty( "Content-length", Integer.toString( outBody.length() ));
httpCon.setRequestProperty( "Content-type", "application/x-www-form-urlencoded" );
OutputStream os = httpCon.getOutputStream();
PrintWriter ow = new PrintWriter( os );
ow.print( body );
ow.flush();
ow.close();
} catch (....) {
}Hi
You must not encode all the body just the values of the parameters.
You can do as following in order to send a post request with 2 parameters
String param1 = "Co & sons";
String param2 = "ltd.";
String encParam1 = URLEncoder.encode(param1,"UTF-8");
String encParam2 = URLEncoder.encode(param2,"UTF-8");
String body = "param1="+encParam1+"¶m2="+encParam2;
OutputStream os = httpCon.getOutputStream();
PrintWriter ow = new PrintWriter( os );
ow.print( body );
ow.flush();
//read the response from the jsp
InputStream inS = httpCon.getInputStream();
byte[] buff = new byte[5000];
StringBuffer sbuff = new StringBuffer();
int nrBytes ;
while( (nrBytes = inS.read(buff, 0, 5000))!=-1) {
sbuff.append(new String(buff,0,nrBytes));
inS.close();
ow.close();
...This is the jsp page which gets the parameters
<%
String param1 = request.getParameter("param1");
param1 = new String(param1.getBytes(),"utf-8");
String param2 = request.getParameter("param2");
param2 = new String(param2.getBytes(),"utf-8");
%>I hope I helped you.
Regards,
BG -
Connected to Internet or not connected? what is wrong with this code?
hi
here is a simple code to check whether Internet is connected to my machine or not----------
import java.net.*;
class CheckNet
public static void main(String args[])
while(true)
check();
try{
Thread.sleep(1000);
}catch(InterruptedException ie){System.out.println(ie);}
static void check()
try
String hostAddress ;
InetAddress localHost ;
localHost = InetAddress.getLocalHost();
hostAddress = localHost.getHostAddress();
if (hostAddress.equals( "127.0.0.1" ))
System.out.println("Not connected");
else
System.out.println("Connect to host: " + hostAddress);
catch(UnknownHostException ukhe){System.out.println(ukhe);}
this code tells the status of connection at first call of method check() in code, but can not update itself i.e if status of net conn is changed prog continues to output the same result.
CAN ANYBODY HELP ME TO REMOVE THE BUG / or suggest a better way?
regardsI've run into the same issue and found the following:
InetAddress caches successful and unsuccessful host name resolutions (See JavaDocs for InetAddress for more detail on this).
My guess is that InetAddress has cached the unsuccessful attempt and therefore when a network connection is established in your application loop, InetAddress "thinks" its still not connected.
The JavaDocs say something about setting a security property which can control the cache time, but I haven't been able to get InetAddress to recognize the property change. I'm probably not setting it in the right place.
HTH,
robert
Maybe you are looking for
-
Context menu How to add extra lines in Windows 7
Windows 7. Just updated from XP. Only modest technical skills, so I would appreciate simple detailed instructions if anyone is able to help me.
-
I have the old hard drive in a USB case and connected to the new computer. I have firefox installed and need to have the address book (critical) copied over and inserted to be the address book information on the new computer. I am hoping there is a f
-
My phone keeps coming up with a wrong email sign in
I have a new iPhone 4 that I recieved from a family member. I have synced it to my itunes, but when I go to update my apps it still comes up with the previous owners apple ID. How do I change that?
-
Flash Movie works when testing, but not in application
My flash movie works when I "Test Movie" within Flash 8 or when I press F12 and open it in the browser, but it only show the dynamic text, not the pictures when I place it within my page. The dynamic text changes properly but no images are displayed.
-
Hello, I get this error sometimes while starting a new GP Process on portal and sometimes it runs through fine : com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: View container UI element frameworkComponent4 in view VerticalContainerView