plz help me n00b here

[Apocalyp5e]

i started to make a applet for the game whack a mole i named that samckitt but this is giving me probs it compiles but it always give me -ve score i tried to debug this but of no use i think somthing wrong with the repaint method ( i dont know what wrong so i m submitting it so guys plz help me :

import java.awt.*;
import javax.swing.*;
import java.util.Random;
import java.io.*;
import java.awt.event.*;

public class smackitt extends JApplet implements ActionListener,Serializable 
{//smackitt
JButton b0,b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13,b14,b15,b16,b17,b18,b19,b20,b21,b22,b23,b24;
int val,score=0,b;
String str1;
void gen()
{
GridLayout g1=new GridLayout(5,5);
JPanel p1=new JPanel();
getContentPane().add(p1);
p1.setLayout(g1);

JButton b0=new JButton("");
JButton b1=new JButton("");
JButton b2=new JButton("");
JButton b3=new JButton("");
JButton b4=new JButton("");
JButton b5=new JButton("");
JButton b6=new JButton("");
JButton b7=new JButton("");
JButton b8=new JButton("");
JButton b9=new JButton("");
JButton b10=new JButton("");
JButton b11=new JButton("");
JButton b12=new JButton("");
JButton b13=new JButton("");
JButton b14=new JButton("");
JButton b15=new JButton("");
JButton b16=new JButton("");
JButton b17=new JButton("");
JButton b18=new JButton("");
JButton b19=new JButton("");
JButton b20=new JButton("");
JButton b21=new JButton("");
JButton b22=new JButton("");
JButton b23=new JButton("");
JButton b24=new JButton("");

p1.add(b0);
p1.add(b1);
p1.add(b2);
p1.add(b3);
p1.add(b4);
p1.add(b5);
p1.add(b6);
p1.add(b7);
p1.add(b8);
p1.add(b9);
p1.add(b10);
p1.add(b11);
p1.add(b12);
p1.add(b13);
p1.add(b14);
p1.add(b15);
p1.add(b16);
p1.add(b17);
p1.add(b18);
p1.add(b19);
p1.add(b20);
p1.add(b21);
p1.add(b22);
p1.add(b23);
p1.add(b24);

b0.addActionListener(this);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
b5.addActionListener(this);
b6.addActionListener(this);
b7.addActionListener(this);
b8.addActionListener(this);
b9.addActionListener(this);
b10.addActionListener(this);
b11.addActionListener(this);
b12.addActionListener(this);
b13.addActionListener(this);
b14.addActionListener(this);
b15.addActionListener(this);
b16.addActionListener(this);
b17.addActionListener(this);
b18.addActionListener(this);
b19.addActionListener(this);
b20.addActionListener(this);
b21.addActionListener(this);
b22.addActionListener(this);
b23.addActionListener(this);
b24.addActionListener(this);

Random r=new Random();
int val;
val=r.nextInt(24);

switch(val)
{//switch
case 0:
	{
	b0.setText("SmackIt");
	}
	break;

case 1:
	{
	b1.setText("SmackIt");
	}
	break;
	
case 2:
	{
	b2.setText("SmackIt");
	}
	break;
case 3:
	{
	b3.setText("SmackIt");
	}
	break;
case 4:
	{
	b4.setText("SmackIt");
	}
	break;
case 5:
	{
	b5.setText("SmackIt");
	}
	break;
case 6:
	{
	b6.setText("SmackIt");
	}
	break;
case 7:
	{
	b7.setText("SmackIt");
	}
	break;
case 8:
	{
	b8.setText("SmackIt");
	}
	break;
case 9:
	{
	b9.setText("SmackIt");
	}
	break;
case 10:
	{
	b10.setText("SmackIt");
	}
	break;
case 11:
	{
	b11.setText("SmackIt");
	}
	break;
case 12:
	{
	b12.setText("SmackIt");
	}
	break;
case 13:
	{
	b13.setText("SmackIt");
	}
	break;
case 14:
	{
	b14.setText("SmackIt");
	}
	break;
case 15:
	{
	b15.setText("SmackIt");
	}
	break;
case 16:
	{
	b16.setText("SmackIt");
	}
	break;
case 17:
	{
	b17.setText("SmackIt");
	}
	break;
case 18:
	{
	b18.setText("SmackIt");
	}
	break;
case 19:
	{
	b19.setText("SmackIt");
	}
	break;
case 20:
	{
	b20.setText("SmackIt");
	}
	break;
case 21:
	{
	b21.setText("SmackIt");
	}
	break;
case 22:
	{
	b22.setText("SmackIt");
	}
	break;
case 23:
	{
	b23.setText("SmackIt");
	}
	break;
case 24:
	{
	b24.setText("SmackIt");
	}
	break;
}//switch
}
public void init()
{
gen();
b=40;
}//init

public void start()
{}
public void stop()
{}

public void paint(Graphics g)
{
gen();
}


public void actionPerformed(ActionEvent ae) 
{//actionperformed
Object obj;
obj=ae.getSource();

     if (obj==b0)  b=0;
else if (obj==b1)  b=1;
else if (obj==b2)  b=2;
else if (obj==b3)  b=3;
else if (obj==b4)  b=4;
else if (obj==b5)  b=5;
else if (obj==b6)  b=6;
else if (obj==b7)  b=7;
else if (obj==b8)  b=8;
else if (obj==b9)  b=9;
else if (obj==b10)  b=10;
else if (obj==b11)  b=11;
else if (obj==b12)  b=12;
else if (obj==b13)  b=13;
else if (obj==b14)  b=14;
else if (obj==b15)  b=15;
else if (obj==b16)  b=16;
else if (obj==b17)  b=17;
else if (obj==b18)  b=18;
else if (obj==b19)  b=19;
else if (obj==b20)  b=20;
else if (obj==b21)  b=21;
else if (obj==b22)  b=22;
else if (obj==b23)  b=23;
else if (obj==b24)  b=24;

try 
{//try
if(b==0 && val==0 || b==1 && val==1 || b==2 && val==2 || b==3 && val==3 || b==4 && val==4 
|| obj==b5 && val==5 || obj==b6 && val==6 || obj==b7 && val==7 || obj==b8 && val==8 || obj==b9 && val==9 
|| obj==b10 && val==10 || obj==b11 && val==11 || obj==b12 && val==13 || obj==b14 && val==14 || obj==b15 
&& val==15 || obj==b16 && val==16 || obj==b17 && val==17 || obj==b18 && val==18 || obj==b19 && val==19 
|| obj==b20 && val==20 || obj==b21 && val==21 || obj==b22 && val==22 || obj==b23 && val==23 || obj==b24 && val==24)
{
score=score+1;
getAppletContext().showStatus("Your score is"+score);
}
else
{
score=score-1;	
getAppletContext().showStatus("Your score is"+score);
}
}//try
catch(Exception e)
{
System.out.println(""+e);
}
repaint();
}//action performed
}//smackitt

plz plz help me (