a small ball game (java-applets)

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
import javax.swing.event.*;

/*


*/
public class Dxball1 extends Applet implements
Runnable,KeyListener,MouseListener
{
Thread th;
static Rectangle ob[] = new Rectangle[30];
Ball ball;
Bar bar;
Message mes;
int i,j;
int x = 1;
int y=1;
int z = 0;
int xx,yy1,zz;
int b,b1;
int flag;
//static int yy=0;
boolean runing=true;
Image dbimage;
Graphics dbg;
int c1,c2,c3,c4;
int flagg=1;
//int ballCheck=0;
String ss = "";
String ss1="";
String me = "";
static int score = 0;

static Font ff;
TextArea ta;

public void start()
{
th = new Thread(this);
runing = false;
//th.start();
}
public void stop()
{

runing = true;
th = null;
}
public void run()
{

for(; ;)
{
if(ball.over())
{
ss = "Game Over!!!!!";
ss1 = "You have loss the game";
repaint();
System.out.print("braek");
break;

}
try
{ Thread.sleep(20);
if(runing)break;

int tempx=Ball.flagx;
int tempy=Ball.flagy;
if (tempx==1)
ball.move();

else
ball.move1();
if(tempy==1)
ball.move2();
else
ball.move3();
if(tempy==1)
ball.move();
else
ball.move3();

repaint();

}

catch(InterruptedException ie)
{
ie.printStackTrace();
}
}
}
public void init()
{
/*me ="
THIS IS A DXBALL GAME.

"+
"
This Game is Devlopped by
Md.Mujibur Rahman
"+
" University of DIU
BATCH 9th ROLL 9007
"+
" Created by Mujibur's Group
"+
"
HOW TO PLAY
"+
"
Level 1:

First You press mouse
"+
"when you press mouse the the ball is moved
"+
"Then Score will be increase
"+
"
Control the bar for using left arrow and right arrow
"+
"the Ball moved Randomly
"+
"If the ball hits the Rectangle
"+
"Then Score will Increase
"+
"if the ball is passed the bar level
"+
"Game will be over and Game is finished";

setLayout(null);
ta = new TextArea(me);
ta.setBounds(470,120,150,150);
ta.setEditable(false);
add(ta);*/
int xx=30,mm=30;
for(int i =0 ;i<24;i=i+3)
{
ob[i] = new Rectangle(xx,mm);
ob[i].display=true;
mm=mm+20;
ob[i+1] = new Rectangle(xx,mm);
ob[i+1].display=true;
mm=mm+20;
ob[i+2] = new Rectangle(xx,mm);
ob[i+2].display=true;
xx=xx+50;
mm = 30;


}

mes =new Message();

ball = new Ball(90,250);
bar = new Bar(70);

ff = new Font("arial",Font.BOLD,20);

this.addKeyListener(this);
this.addMouseListener(this);
}

public void paint(Graphics g)
{

int count=0;
for(int i=0;i<24;i++)
{
if(ob[i].display==false)
count++;
}
if(count==24)
{
mes.mess(g);
return;
}
g.setFont(new Font("arial",Font.PLAIN,15));
g.setColor(Color.gray);
g.fillRect(470,30,150,70);
g.setColor(Color.blue);
g.drawString("Score: "+score,480,50);
g.drawString("Status:"+Ball.over,480,70);
g.drawString("Life: "+Ball.life,480,90);
//g.drawString(""+Bar.yy,455,50);
g.setColor(Color.black);
g.fillRect(20,20,410,300);
g.setColor(Color.red);
g.setFont(ff);
g.drawString(ss,100,200);
g.drawString(ss1,100,230);
g.setColor(Color.red);
for(int j = 0;j<24;j++)
{
if(ob[j].display==false)
{
continue;
}
System.out.print("
check false : "+ob[j].display);
if(ob[j].display==true)
{
breaking(j) ;

}
if(ob[j].display==true)
ob[j].ppaint(g);


}

ball.bpaint(g);
bar.barpaint(g);

}


public void keyTyped(KeyEvent k)
{
}
public void keyReleased(KeyEvent k)
{

}

public void keyPressed(KeyEvent k)
{
int R =k.getKeyCode();
if(R==k.VK_LEFT)
{
if(bar.yy > 25)
bar.yy=bar.yy-10;
System.out.println("Left");
repaint();

}
if(R==k.VK_RIGHT)
{
if(bar.yy < 365 )
{
bar.yy=bar.yy+10;
}
System.out.println("Right");
repaint();




}

}
public void mousePressed(MouseEvent me)
{
th.start();
}
public void mouseReleased(MouseEvent me)
{

}
public void mouseClicked(MouseEvent me)
{

}
public void mouseExited(MouseEvent me)
{

}
public void mouseEntered(MouseEvent me)
{
}
public void update(Graphics g) //to remove flickering
{
if (dbimage==null)
{
dbimage=createImage(this.getSize().width,this.getSize().height);
dbg=dbimage.getGraphics();
}
dbg.setColor(getBackground());
dbg.fillRect(0,0,this.getSize().width,this.getSize().height);
dbg.setColor(getForeground());
paint(dbg);
g.drawImage(dbimage,0,0,this);

}


public boolean breaking(int i)
{
if(check(i))
return true;
else
return false;


}
public boolean check(int i)
{
int am,ami;
am = Math.abs(ball.x1-ob[i].x);
ami = Math.abs(ball.y1-ob[i].y);
if(am<20 && ami<20 )
{
ob[i].display=false;
score=score+10;
Ball.flagy=1;
return true;

}
else
{

return false;

}

}


} //Class main is end




class Rectangle
{
int i;
int x,y;
Graphics g;
int ballCheck=0;
boolean display;
Rectangle(int m ,int n)
{

x = m;
y =n;
}
public void ppaint(Graphics g)
{
g.fillRect(x,y,40,10);

}

}

class Ball
{
static int flag=3;
static int flagx=1;
static int flagy=2;
static int Point = 0;
static String over="";
static int life=1;
int x,y,m;
int x1,y1;
Graphics g;
Ball(int a1,int a2)
{
x1 = a1;
y1 = a2;
}
public void bpaint(Graphics g)
{
//g.drawString(" y : "+y1,455,250);
if(20>=x1||x1>=410||y1<=20||y1>=260) //checking boundaries
{

getflag();
}
g.setColor(Color.white);
g.fillOval(x1,y1,15,15);

}
public boolean over()
{
//System.out.println(""+y1);
if(y1>290)
return true;
else
return false;
}
public void move()
{
x1++;

}
public void move1()
{
x1--;

}
public void move2()
{
y1=y1+2;
}
public void move3()
{
y1=y1-2;
}

public void move4()
{
x1++;
y1--;
}

public void getflag()
{


if(x1<=20) // check boundaries and ball motion
{
x1=20;
flagx=1;
}
if(x1>=410)
{
x1=410;
flagx=2;
}
if(y1<=20)
{
y1=20;
Point = Point +10;
flagy=1;
}
if(y1>=260)
{
if(Bar.yy>=x1||x1<=(Bar.yy+50))
{
System.out.print("/n /n true Bar.yy :"+Bar.yy+"
Y1:"+y1);
System.out.print(" /n/n/n/ncheck ok");
y1=260;
flagy=2;
}
else
{
System.out.print("/n /n falseBar.yy :"+Bar.yy+"
Y1:"+y1);
if(Bar.yy>260 && Bar.yy<200)
{
flag=2;
System.out.print("/n game over");
}
else
{
if(Bar.yy>290)
{
}
else
{
life=0;
System.out.print(Bar.yy);

over="LOSS GAME";
}
}

} //else1 end
}


}

}//end class



class Bar
{
int ss;
static int yy=0;
int q;
static int pp;
Bar(int a)
{
yy=a+yy;
}
public void barpaint(Graphics g)
{
g.setColor(Color.gray);
g.fillRect(yy,270,60,10);

}
}


class Message
{
public void mess(Graphics g)
{
g.setColor(Color.black);
g.fillRect(0,0,400,300);
g.setColor(Color.red);
g.setFont(Dxball1.ff);
g.drawString("YOU HAVE WON THE GAME",160,180);
g.drawString("Your Score is:"+Dxball1.score,160,200);

}
}