Okay, I need help with the snake tail, following it with arrays.
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Random;
public class snake1
public static void main(String args[])
String name1= JOptionPane.showInputDialog("Enter Player one's name");
Windows myW=new Windows(name1);
myW.setSize(800,600);
myW.addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent event)
System.exit(0);
myW.show();
while(true)
myW.repaint();
try{Thread.sleep(60/myW.getLevel());}catch(Exception e){}
class Windows extends Frame implements KeyListener
int appleSize = 10;
int snakeSize = 10;
private int x,y,xold,yold;
private boolean go,move,firsttime,win,tie,goTitle,play,selectLevel;
private int size,growth;
private int level = 0;
private int AppleX, AppleY, SnakeX, SnakeY;
private boolean left,right,up,down;
private boolean hitWall,start;
private String nam1;
private int snakeBody[][];
private int currentLength,snakeLength;
public Windows(String n1)
nam1=n1;
play=false;
win = false;
x=265;
y=265;
AppleX=x;
AppleY=y;
xold=x;
yold=y;
firsttime =true;
go =false;
move =false;
goTitle=true;
go=false;
addKeyListener(this);
selectLevel=false;
level=0;
SnakeX=265;
SnakeY=265;
left=false;
right=true;
up=false;
down=false;
size=5;
hitWall=false;
start=false;
growth = 1;
snakeLength = 999;
currentLength = 1;
snakeBody = new int[snakeLength][2];
snakeBody[0][0] = SnakeX;
snakeBody[0][1] = SnakeY;
public int getLevel()
return level;
public void update(Graphics g)
paint(g);
public void paint(Graphics g)
if(goTitle)
title(g);
if(firsttime){
selectLevel=true;
startgame(g);
movebox(g);
firsttime=false;
if(go){
selectLevel=true;
snakeGame(g);
if(play)
snakeGame(g);
selectLevel=false;
g.setFont(new Font("Courier",Font.BOLD,30));
g.setColor(Color.yellow);
g.drawString("X = ",490,100); // display x,y on screen
String xnum=Integer.toString(x);
g.drawString(xnum,550,100);
g.drawString("Y = ",640,100);
String ynum=Integer.toString(y);
g.drawString(ynum,700,100);
if(move)
movebox(g);
//repaint();
public void title(Graphics g)
g.setColor(Color.red);
g.fillOval(100,100,600,450);
g.fillRect(390,30,20,80);
//g.setColor(Color.black);
//g.drawRoundRect(100,150,20,10,20,20);
g.setColor(Color.black);
g.fillRect(0,0,800,600);
//g.setColor(Color.black);
//g.fillRect(100,100,600,400);
g.setColor(Color.red);
g.setFont(new Font("Courier",Font.ITALIC,36));
g.drawString("Snake Game", 300,200);
g.setColor(Color.white);
try{Thread.sleep(75);}catch(Exception e){}
g.drawOval(410,250,6,6);
try{Thread.sleep(75);}catch(Exception e){}
g.drawOval(404,250,6,6);
try{Thread.sleep(75);}catch(Exception e){}
try{Thread.sleep(75);}catch(Exception e){}
g.drawOval(400,240,20,20);
try{Thread.sleep(75);}catch(Exception e){}
g.drawOval(400,220,20,20);
try{Thread.sleep(75);}catch(Exception e){}
g.drawOval(320,200,20,20);
try{Thread.sleep(75);}catch(Exception e){}
g.drawOval(340,200,20,20);
try{Thread.sleep(75);}catch(Exception e){}
g.drawOval(360,200,20,20);
try{Thread.sleep(75);}catch(Exception e){}
g.drawOval(380,200,20,20);
try{Thread.sleep(75);}catch(Exception e){}
g.drawOval(400,200,20,20);
try{Thread.sleep(400);}catch(Exception e){}
for(int k=0; k<4; k++)
g.setColor(Color.green);
g.setFont(new Font("Courier",Font.ITALIC,36));
g.drawString("How you like them APPLES!", 140,400);
try{Thread.sleep(400);}catch(Exception e){}
g.setColor(Color.red);
g.setFont(new Font("Courier",Font.ITALIC,36));
g.drawString("How you like them APPLES!", 140,400);
try{Thread.sleep(400);}catch(Exception e){}
goTitle=false;
firsttime=true;
public void startgame(Graphics g)
g.setColor(Color.black);
g.fillRect(0,0,800,600);
g.setColor(Color.white);
g.setFont(new Font("Courier",Font.ITALIC,30));
g.drawString("Snake Game", 300,75);
firsttime=false;
g.setColor(Color.yellow);
g.drawString("Easy",250,265);
g.setColor(Color.yellow);
g.drawString("Normal",250,365);
g.setColor(Color.yellow);
g.drawString("Hard",250,465);
public void keyPressed(KeyEvent event)
if(selectLevel)
xold=x;
yold=y;
switch (event.getKeyCode())
case KeyEvent.VK_UP:
if(y<=265)
y=265;
else
y-=100;
move=true;
break;
case KeyEvent.VK_DOWN:
if(y>=465)
y=465;
else
y+=100;
move=true;
break;
case KeyEvent.VK_ENTER:
if(y==465) //HARD
level=3;
else if (y == 365) //MEDIUM
level=2;
else // EASY
level=1;
if(x==xold && y==yold)
play=true;
break;
else
if (event.getKeyCode() == KeyEvent.VK_UP)
if(!down)
down=false;
up=true;
left=false;
right=false;
move=false;
selectLevel=false;
if (event.getKeyCode() == KeyEvent.VK_DOWN)
if(!up)
up=false;
down=true;
left=false;
right=false;
move=false;
selectLevel=false;
if (event.getKeyCode() == KeyEvent.VK_LEFT)
if(!right)
right=false;
left=true;
up=false;
down=false;
move=false;
selectLevel=false;
if (event.getKeyCode() == KeyEvent.VK_RIGHT)
if(!left)
left=false;
right=true;
up=false;
down=false;
move=false;
selectLevel=false;
if (event.getKeyCode() == KeyEvent.VK_ENTER)
play=true;
public void keyReleased(KeyEvent event)
public void keyTyped(KeyEvent event)
public void movebox(Graphics screen)
screen.setColor(Color.black); //blue rectangle to clear
screen.fillRect(490,80,260,30);
screen.setFont(new Font("Courier",Font.BOLD,30));
screen.setColor(Color.yellow);
screen.drawString("X = ",490,100); // display x,y on screen
String xnum=Integer.toString(x);
screen.drawString(xnum,550,100);
screen.drawString("Y = ",640,100);
String ynum=Integer.toString(y);
screen.drawString(ynum,700,100);
if(x!=xold || y!=yold)
screen.setColor(Color.black);
screen.fillRect(xold-10,yold,xold+110,yold);
screen.setFont(new Font("Courier",Font.ITALIC,30));
screen.setColor(Color.yellow);
screen.drawString("Easy",250,265);
screen.setColor(Color.yellow);
screen.drawString("Normal",250,365);
screen.setColor(Color.yellow);
screen.drawString("Hard",250,465);
screen.setColor(Color.red);
screen.drawLine(x-10,y,x+110,y);
xold=x;
yold=y;
move=false;
selectLevel=true;
public void snakeGame(Graphics g)
Random rnum=new Random();
g.setColor(Color.gray);
g.fillRect(0,0,800,600);
DrawApple(g, AppleX, AppleY);
g.setColor(Color.white);
g.setFont(new Font("Courier",Font.ITALIC,30));
if(left)
SnakeX-=size;
if(right)
SnakeX+=size;
if (up)
SnakeY-=size;
if(down)
SnakeY+=size;
drawSnake(g);
if (SnakeX<5)
hitWall=true;
SnakeX=785;
if(SnakeX>785)
hitWall=true;
SnakeX=5;
if(SnakeY<30)
hitWall=true;
SnakeY=585;
if(SnakeY>585)
hitWall=true;
SnakeY=30;
selectLevel=false;
boolean touchSnakeX = (AppleX >= SnakeX) && (AppleX <= SnakeX + snakeSize);
boolean touchSnakeY = (AppleY >= SnakeY) && (AppleY <= SnakeY + snakeSize);
boolean touchAppleX = (AppleX <= SnakeX) && (AppleX + appleSize >= SnakeX);
boolean touchAppleY = (AppleY <= SnakeY) && (AppleY + appleSize >= SnakeY);
//if(SnakeX==AppleX && SnakeY==AppleY)
if((touchSnakeX && touchSnakeY) || (touchAppleX && touchAppleY))
AppleX = rnum.nextInt(785/size)*size+size;
AppleY = rnum.nextInt(585/size)*size+size;
if(AppleX<30)
AppleX=30;
if(AppleX>785)
AppleX=785;
if(AppleY<5)
AppleY=5;
if(AppleY>785)
AppleY=785;
public void DrawApple(Graphics g, int x, int y)
g.setColor(Color.green);
g.fillRect(x,y,appleSize,appleSize);
public void drawSnake(Graphics g)
g.fillRect(SnakeX,SnakeY, snakeSize, snakeSize);
}Okay I know you need arrays, that following it, and i set it up with the names that we should use.
int snakeBody[][];
nt currentLength,snakeLength;
Thank you, for your help, and if you got it you can explain lil thanks!
hiwa wrote:
What on earth is your problem?What, you're not doing the assignment? Dude! Think of the marks you'll miss!
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int dieCount = scan.nextInt();
int dieRoll = rollDie(); // Main calling class method
int count = 0;
while(count < dieCount)
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count++;
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This class calculates the cost of a muffler
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*Adds a new muffler installation for the franchise
*@param name the customer name
*@param code the service code
public void addMuffler(String name, String code)
mufflers[count]=new Muffler(name, code);
count++;
*updates a muffler installation for the franchise
*@param name the customer name
*@param code the service code
public void updateMuffler(String name, String code)
for(int i=0; i<=count; i++)
if (mufflers.getCustomer().equalsIgnoreCase(name))
mufflers[i].updatePriceCode(code);
private double calculateTotalSales()
double sales=0;
for(int i=0; i<=count; i++)
double price=mufflers[count].getCost();
if (price!=9999.99)
sales+=mufflers[count].getCost();
return sales;
*Returns total sales for the franchise
*@return sales the total sales
public double getTotalSales()
double sales;
return sales=calculateTotalSales();
*Returns a particular installation for the franchise
*@param name the customer name
*@return statement the installations details
public String getMuffler(String name)
String statement= name + "not found";
for (int i=0; i<=count; i++)
if (mufflers[i].getCustomer().equalsIgnoreCase(name))
statement=mufflers[i].toString();
return statement;
*Returns all installations, franchise name, id and total sales
*@return info the sales history for the franchise
public String toString()
String info="Franchise ID: " + franchiseID + "\nFranchise Name: " + franchiseName + "\nTotal Sales: " + getTotalSales() + "\n";
for (int i=0; i<=count; i++)
info+=mufflers[i].toString();
return info;
private int franchiseID;
private int count=0;
private String franchiseName;
private Muffler[] mufflers = new Muffler[10];Thank you. That did fix those problems, but now I am getting the same error for this in Installations Class:
private double calculateTotalSales()
double sales=0;
for(int i=0; i<count; i++)
double price=mufflers[count].getCost(); //This line is causing the problem
if (price!=9999.99)
sales+=mufflers[count].getCost();
return sales;
} and this block in Installations Class:
public double getTotalSales()
double sales;
return sales=calculateTotalSales(); // This line is getting the error
}and this in the driver program (InstallationsTest)
System.out.println("The total sales are $" +install.getTotalSales());You will notice that I do not have the i<=count in the for loop here. I get the error both ways, though. What am I doing wrong? -
Need help with arrays in a survey
I am making a survey using arrays to store the answers to 2 questions and output the frequencies of each answer, as well as the average rating for each question. When I do it in a structured manner, it works properly:
import java.text.DecimalFormat; //in order to format numbers
import javax.swing.*;
public class Music1
public static void main (String[] args)
int iCount = 0, iResponsesSum1 = 0, iResponsesSum2 = 0, iParticipants;
double dResponsesAve1 = 0, dResponsesAve2 = 0;
String sInput = "", sOutput = "", sOutput1 = "";
int frequency1[] = new int[6];
int frequency2[] = new int[6];
iParticipants = Integer.parseInt(JOptionPane.showInputDialog("Enter the number of participants\nin music taste survey:"));
int responses1[] = new int[iParticipants];
int responses2[] = new int[iParticipants];
for (iCount = 0; iCount < responses1.length; iCount++)//for loop
responses1[iCount] = Integer.parseInt(JOptionPane.showInputDialog(null, "Please rate Rave music (1: awful - 5: great):", "Participant #" + (iCount + 1) + ":", JOptionPane.QUESTION_MESSAGE));//display first input box
responses2[iCount] = Integer.parseInt(JOptionPane.showInputDialog(null, "Please rate Rock & Roll music (1: awful - 5 great):", "Participant #" + (iCount + 1) + ":", JOptionPane.QUESTION_MESSAGE));//display second input box
++frequency1[responses1[iCount]];
++frequency2[responses2[iCount]];
iResponsesSum1+= responses1[iCount];//sum answers for first question
iResponsesSum2+= responses2[iCount];//sum answers for second question
}//end for loop
for (int rating = 1; rating < frequency1.length; rating++)
sOutput1+= " Participants who left rating " + rating + " \t" + frequency1[rating] + "\t" + frequency2[rating] + "\n";
}//end for loop
dResponsesAve1 = iResponsesSum1/(double)(responses1.length);
dResponsesAve2 = iResponsesSum2/(double)(responses2.length);
DecimalFormat myFormat = new DecimalFormat("0.00");
sOutput = "\tMusic Survey Results\n\n\n\n" +
" Number of participants: " + iParticipants + "\n\n" +
" Rave average rating: " + myFormat.format(dResponsesAve1) + "\n" + " Rock average rating: " + myFormat.format(dResponsesAve2) + "\n\n\n" +
"\tRatings by music:\n\n" +
"\t\t" +
"Rave\tRock" + "\n" +
sOutput1 + "\n";
JTextArea outputArea = new JTextArea(20, 15);
outputArea.setText(sOutput);
JOptionPane.showMessageDialog(null, outputArea, "Music Survey", JOptionPane.PLAIN_MESSAGE);//output the message
System.exit(0);//exit the program
}//end main
}//end classNow, the problems start when I try to transform that into classess that create survey object and methods to be performed on that object.
import java.text.DecimalFormat;
import javax.swing.JOptionPane;
public class Music
public int iCount;
public int iRating;
private int iResponsesSum1;
private int iResponsesSum2;
private int iParticipants;
private double dResponsesAve1;
private double dResponsesAve2;
private String sInput;
private String sOutput1;
private String sOutput;
private int responses1[];
private int responses2[];
private int frequency1[];
private int frequency2[];
public Music()
setParticipants();
iCount = 0;
iRating = 0;
iResponsesSum1 = 0;
iResponsesSum2 = 0;
iParticipants = 0;;
dResponsesAve1 = 0;
dResponsesAve1 = 0;
iParticipants = 0;
sInput = "";
sOutput = "";
sOutput1 = "";
responses1 = new int[iParticipants];
responses2 = new int[iParticipants];
frequency1 = new int[6];
frequency2 = new int[6];
public void setParticipants()
iParticipants = Integer.parseInt(JOptionPane.showInputDialog("Enter the number of participants\nin music taste survey:"));
public int getParticipants()
return iParticipants;
public void setResponses1()
for (iCount = 0; iCount < responses1.length; iCount++)//for loop
responses1[iCount] = Integer.parseInt(JOptionPane.showInputDialog(null, "Please rate Rave music (1: awful - 5: great):", "Participant #" + (iCount + 1) + ":", JOptionPane.QUESTION_MESSAGE));//display first input box
public void setResponses2()
for (iCount = 0; iCount < responses1.length; iCount++)//for loop
responses2[iCount] = Integer.parseInt(JOptionPane.showInputDialog(null, "Please rate Rock & Roll(1: awful - 5: great):", "Participant #" + (iCount + 1) + ":", JOptionPane.QUESTION_MESSAGE));//display second input box
public void setFrequency1()
++frequency1[responses1[iCount]];
public void setFrequency2()
++frequency1[responses1[iCount]];
public void setSum1()
iResponsesSum1+= responses1[iCount];//sum answers for first question
public int getSum1()
return iResponsesSum1;
public void setSum2()
iResponsesSum2+= responses2[iCount];//sum answers for first question
public int getSum2()
return iResponsesSum2;
public void setFrequenciesByRating()
sOutput1+= "Participants who left rating " + iRating + " " + frequency1[iRating] + " " + frequency2[iRating] + "\n";
public String getFrequenciesByRating()
return sOutput1;
public double getAverage1()
dResponsesAve1 = getSum1()/(double)(responses1.length);
return dResponsesAve1;
public double getAverage2()
dResponsesAve2 = getSum2()/(double)(responses2.length);
return dResponsesAve2;
public String toString()
DecimalFormat myFormat = new DecimalFormat("0.00");
sOutput = " Music Survey Results\n\n\n\n" +
"Number of participants: " + getParticipants() + "\n\n" +
"Rave average rating: " + myFormat.format(getAverage1()) + "\n" +
"Rock average rating: " + myFormat.format(getAverage2()) + "\n\n\n" +
" Ratings by music:\n\n" +
" " +
"Rave Rock" + "\n" +
getFrequenciesByRating() + "\n";
return sOutput;
}Here is what I have for the main program:
mport java.text.DecimalFormat; //in order to format numbers
import javax.swing.JOptionPane;
public class MusicApp
public static void main (String[] args)
int iCount = 0, iRating = 0;
int responses1[] = new int[6];
Music survey = new Music();
for (int iCount1 = 0; iCount1 < responses1.length; iCount1++)
survey.setResponses1();
for (int iCount2 = 0; iCount2 < responses1.length; iCount2++)
survey.setResponses2();
for (int iCount3 = 0; iCount3 < responses1.length; iCount3++)
survey.setFrequency1();
for (int iCount4 = 0; iCount4 < responses1.length; iCount4++)
survey.setFrequency2();
for (iRating = 1; iRating < responses1.length; iRating++)
survey.setFrequenciesByRating();
JOptionPane.showMessageDialog(null,survey.toString(), "Music Survey", JOptionPane.PLAIN_MESSAGE);//output the message
System.exit(0);//exit the program
}This obviously doesn't work, it gives me an ArrayIndexOutOfBoundsException.
I tried to twist it in every way I could think of, but I still couldn't get it to work. I would like the program to run as it does in the structured form.
I think I have a problem with the scope of the variables, but I am really not sure, that's why I hope that someone can give me some insight into what I am doing wrong.
So, please, any constructive comment or advice is greatly appreciated.By the way, have a good look at your Music constructor:
setParticipants(); //this will only be called once!
iCount = 0;
iRating = 0;
iResponsesSum1 = 0;
iResponsesSum2 = 0;
iParticipants = 0;; //double semicolon :)
dResponsesAve1 = 0;
dResponsesAve1 = 0;
iParticipants = 0; //!!
sInput = "";
sOutput = "";
sOutput1 = "";
responses1 = new int[iParticipants]; //this creates an array of int with size 0 (see iParticipants)
responses2 = new int[iParticipants]; //idem
frequency1 = new int[6]; //this creates an array of size 6 [0,0,0,0,0,0]
frequency2 = new int[6]; //idem -
I need help with color pallette in iPhoto 11. I have created a book and would like to use a different color background than those given in "background." I have found the color palettes but can't seem to incorporate them into my backgrounds palette.
That is not a feature of iPhoto - suggest to Apple - iPhoto Menu ==> provide iPhoto feedback.
Additionally I have no idea what you are saying here
I have found the color palettes but can't seem to incorporate them into my backgrounds palette.
And it always helps for you to dientify the version of iPhoto that you are using
LN -
I just created an iCloud email and I want to use that email for my iTunes account as well. I need help switching the old apple ID because I do not remember anything associated with that email and I don't know the security questions or the login for that old email.
You cannot do that. The AppleID you used to create the iCloud account is an active primary email address. The email address you created with the iCloud account is also an active primary email address (all Apple domain email address automatically become AppleIDs as well). You cannot replace the primary email address on one active AppleID with the primary email address on another, active AppleID.
You can use your iCloud email/AppleID with iTunes, but it will be a separate account, so all your previous purchases remain tied to the other AppleID you have.
I don't understand your statement that you could not remeber your old AppleID password, as you would have had to use it to create the iCloud account in the first place (the first step of creating the iCloud account required you to login with your existing AppleID and password)? -
Hello, I need help with my macbook pro.
It looks like I cannot install anything anymore. Everytime I try to install a new software, I simply get stuck during the installation type process. I put in my password, it does accept it, but it does not go any further.
I tried to reset the password, put no password, repair the permissions, the disk but nothing will do. I nearly got stuck with the log in screen but finally succeeded in disabling it.
So I thought I might try to create a new account but I cannot click the lock to make changes. It simply refuses to react.
I am now thinking about using the migration assistant to save all my settings, data and so fourth, but again I get stuck when I have to type in my password. It accepts it but nothing happens...
I guess it has something to do with the authorization process, but can't find anything on the internet about it... Can you help me out?
I am running Lion 10.7.3.
Regards,
Nicolas.
(I apologize if any grammatical/structural mistakes were to be found, english is not my mother-tongue. )You probably won't like this suggestion, but I suggest you reinstall Lion.
First, backup your system. Next, reboot your system, press/hold the COMMAND-R keys to boot into the Recovery HD. Select 'Reinstall Mac OS X'. If you purchased Lion as an upgrade to Snow Leopard, the reinstall process will install Lion 10.7.3. If your system came preinstalled with Lion, you might still get Lion 10.7.2. Both installs are a total install of the OS. None of your apps or data will be impacted. Just the OS. -
I need help with event structure.
I am trying to feed the index of the array, the index number can vary from 0 to 7.
Based on the logic ouput of a comparison, the index buffer should increment
or decrement every time the output of comparsion changes(event change). I guess I need to use event structure?
(My event code doesn't execute when there is an event at its input /comparator changes its boolean state.
Anyone coded on similar lines? Any ideas appreciated.
Thanks in advance!You don't need an Event Structure, a simple State Machine would be more appropriate.
There are many examples of State Machines within this forum.
RayR -
Need help with the Vibrance adjustment in Photoshop CC 2014.
Need help with the Vibrance adjustment in Photoshop CC 2014.
Anytime I select Vibrance to adjust the color of an image. The whole image turns Pink in the highlights when the slider is moved from "0" to - or + in value. Can the Vibrance tool be reset to prevent this from happening? When this happens I cn not make adjustments...just turns Pink.
Thanks,
GDThank you for your reply.
Yes, that does reset to “0” and the Pink does disappear.
But as soon as I move the slider +1 or -1 or higher the image turns Pink in all of the highlights again, rather than adjusting the overall color.
GD
Guy Diehl web: www.guydiehl.com | email: [email protected]
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