KeyListener Help Needed for Tetris Game!

Question

* Tetris - Java Enhacned
* By: Kunnel Zachariah, Johnathan Smith, Johnathan Adkins
import javax.swing.JFrame;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.Timer;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.KeyListener;
import java.awt.event.KeyEvent;
import static java.lang.Character.*;
import java.awt.*;
import java.awt.image.*;
import java.applet.*;
import java.lang.Math;
import java.lang.System;
import java.awt.event.*;
import javax.swing.*;
import java.util.Random;
import java.awt.event.KeyAdapter;
public class TetrisMain extends JFrame implements KeyListener
     int s;
     int p;
     int xPos;
     int yPos;
     int level = 1;
     int lines = 0;
     int score = 0;
     int switchPiece;
     private boolean[] keys;
     private int SLEEP = 50; //bigger # = slower animation
     private Timer timer;
     int bologna = 11;
    int posX[], posY[];
     Color color;
     boolean isSquare = false;
     public TetrisMain()
          setSize(550,710);
          setBackground(Color.black);
          setVisible(true);
          getContentPane();
     public static void main( String args[] )
          TetrisMain pongLab = new TetrisMain();
    public void paint (Graphics g)
          s=0;
          keys = new boolean[4];
          this.addKeyListener(this);
          g.setColor(Color.blue);
          g.fillRect(0,0,550,710);
          g.setColor(Color.black);
          g.fillRect(0,0,460,600);          
          g.setColor(Color.blue);
          g.setColor (Color.black);          
          g.setFont(new Font("Helvetica",Font.BOLD,14));
        g.drawString ("Level: " + level, 485, 40);
        g.drawString ("Lines: " + lines, 485, 80);
        g.drawString ("Score: " + score, 485, 120);
         ActionListener paintCaller = new ActionListener(){
               public void actionPerformed(ActionEvent event)
                    repaint();  //recalls paint every SLEEP milliseconds
          timer = new Timer(SLEEP, paintCaller);
          timer.start();
          while (bologna <= 30)
         if ( keys[0] == true )
               //move left paddle up and draw it on the window
               s+=3;
          if ( keys[1] == true )
          //move left paddle down and draw it on the window
               p+=3;
          if ( keys[2] == true )
               s-=3;
          if ( keys[3] == true )
               p-=3;
                    displayRandomPiece(g);
                    bologna++;
  public void drawGridVertical(Graphics g)
         for(xPos = 0; xPos <=460; xPos+=23)
         for(yPos=0; yPos <=600; yPos+=23)
              g.drawLine(xPos,yPos,xPos,yPos);
    public void drawBlock(Graphics g)
     ImageIcon animatedIcon1 = new ImageIcon("untitled.gif");
     for(p =0; p <=530; p+=2)
      animatedIcon1.paintIcon(this,g,s,p);
      delay(100000);
    public void drawTpiece(Graphics g)
       ImageIcon animatedIcon = new ImageIcon("tpiece.gif");
      for(p =0; p <=530; p+=2)
      animatedIcon.paintIcon(this,g,s,p);
      delay(100000);
    public void drawZigZagpiece(Graphics g)
     ImageIcon animatedIcon2 = new ImageIcon("zigzagpiece.gif");
     for(p =0; p <=530; p+=2)
      animatedIcon2.paintIcon(this,g,s,p);
      delay(100000);
    public void Rectanglepiece(Graphics g)
         ImageIcon animatedIcon3 = new ImageIcon("rectangle.gif");
     for(p =0; p <=530; p+=2)
      animatedIcon3.paintIcon(this,g,s,p);
      delay(100000);
    public void Unknownpiece(Graphics g)
         ImageIcon animatedIcon4 = new ImageIcon("unknownpiece.gif");
     for(p =0; p <=530; p+=2)
      animatedIcon4.paintIcon(this,g,s,p);
      delay(100000);
    public void otherZigZagpiece(Graphics g)
         ImageIcon animatedIcon5 = new ImageIcon("otherzigzagpiece.gif");
      for(p =0; p <=530; p+=2)
      animatedIcon5.paintIcon(this,g,s,p);
      delay(100000);
     public void otherUnknownpiece(Graphics g)
         ImageIcon animatedIcon6 = new ImageIcon("otherunknownpiece.gif");
     for(p =0; p <=530; p+=2)
      animatedIcon6.paintIcon(this,g,s,p);
      delay(100000);
    public static void delay(double n)
          for (double x = 0; x <= n; x += .01);
      public boolean keyPressed(Event e, int key)
      if (key == Event.LEFT)
        s=-1;
      else if (key == Event.RIGHT)
        s+=1;
      else if (key == Event.UP)
        p-=1;
      else if (key == Event.DOWN)
      //  fast=true;
      else if (key == Event.ESCAPE)
       // ingame=false;
    return true;
     public void keyPressed(KeyEvent e)
          System.out.println("keypressed");
          switch(toUpperCase(e.getKeyChar()))
               case 'W' : keys[0]=true;System.out.println("W keypressed"); break;
               case 'Z' : keys[1]=true; System.out.println("z keypressed");break;
               case 'I' : keys[2]=true; System.out.println("i keypressed");break;
               case 'M' : keys[3]=true; System.out.println("m keypressed");break;
     public void keyReleased(KeyEvent e)
          System.out.println("released");
          switch(toUpperCase(e.getKeyChar()))
               case 'W' : keys[0]=true; System.out.println("W realeased");break;
               case 'Z' : keys[1]=true; System.out.println("Z realeased");break;
               case 'I' : keys[2]=true; System.out.println("i realeased");break;
               case 'M' : keys[3]=true; System.out.println("m realeased");break;
     public void keyTyped(KeyEvent e)
          //no code needed here
  public void displayRandomPiece(Graphics g)
       Random rand = new Random();
       int c = rand.nextInt((7)+1);
       switch(c)
            case 1:
            drawBlock(g);
            break;
            case 2:
            drawTpiece(g);
            break;
            case 3:
            drawZigZagpiece(g);
            break;
            case 4:
            Rectanglepiece(g);
            break;
            case 5:
            Unknownpiece(g);
            break;
            case 6:
            otherZigZagpiece(g);
            break;
            case 7:
            otherUnknownpiece(g);
            break;
}This is my code so far for Tetris. I am having issues with my keylisteners! I keep pressing the specified keys and the println statements wont show up or the piece wont move! i really need major help. can anyone give me some advice
Much Thanks,
Chris!

Answer 1

http://forum.java.sun.com/thread.jspa?threadID=5175447
Don't double post! No help for you!