Struggling in creating chessboard!!

[maddycbit]

Hey,I wanna create chessboard(only) without swings as i am a new programmer.Plz see this and say wats wrong with this code and necessary corrections


import java.awt.*;
import java.applet.*;

public class board2 extends Applet
{

int i=0,j=0,a=0;


public void init()
{

for(i=150;i<550;i+=50)//coordinates
{
for(j=50;j<=450;j+=50)//coordinates
{

a++;

repaint();




}

}

}


public void paint(Graphics g)

{




if((a%2)==0)

{


g.setColor(Color.lightGray);

g.fillRect(i,j,50,50);
g.drawRect(i,j,50,50);
}


if((a%2)==1)
{

g.setColor(Color.black);

g.fillRect(i,j,50,50);

g.drawRect(i,j,50,50);

}
}
}