Dx Ball Game

[Urmimala Bose]

Holla Ranchers!!!
Out of grave emergency i had to copy this program from a site but now i need to understand the program for Viva in my school.....am in FIX!!!
Can anyone help me with my queries?? Here goes the program:

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
import javax.swing.event.*;
/*
<applet code="HitMachine.class" width=670 height=300>
</applet>
 */
public class HitMachine 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 lost 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();
            }
        }
    }
    /**
     * Method init
     *
     */
    public void init()
    {
        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("comic sans",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("comic sans",Font.PLAIN,15));
        g.setColor(Color.pink);
        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.blue);
        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.magenta);
        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="LOST 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.green);
        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(HitMachine.ff);
        g.drawString("YOU HAVE WON THE GAME",160,180);
        g.drawString("Your Score is:"+HitMachine.score,160,200);
	}
}

[Swastik Dey]

First of all it's not a very good practice to copy codes like this. Leaving that apart could you please reformat your code inside code tags and let us know your queries?

[Campbell Ritchie]

Welcome to the Ranch

I have added code tags, which simply help you see what poor code style it has. We require you quote the source for such code, to avoid copyright problems.
I don’t think you will learn anything useful from that code, I am afraid.

[Urmimala Bose]

Thanks a lot Swastik and Campbell for your advice... i'll surely keep these in mind.
Source:
http://www.123eng.com/forum/index.php?f=8

[Rob Spoor]

Definitely not. Nobody likes going through hundreds of lines of code. We always prefer an SSCCE.

[Urmimala Bose]

Java program on Pascal's Triangle....... I need the program code. Thanks in advance

[Campbell Ritchie]

I presume you will post that last request again on 1st April rather than 1st February. And do spend the intervening two months looking at some of our FAQ: 1 2 3

[Urmimala Bose]

Thanks a ton Campbell for your immense help....but...... I have solved my problem rather done the pascal's triangle myself and i was not actually trying to get my work done from someone (as I understood by reading FAQ 1).