This applet program needs an html file to run. You should supply the file along with the program so that the reader can test it.

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

public class DrawRectangles extends Applet {

int width, height;

public void init() {
width = getSize().width;
height = getSize().height;
setBackground( Color.white );
}

public void paint( Graphics g ) {

//(back, blue, cyan, darkGray, gray, green, lightGray, magenta, orange, pink, red, white and yellow)
drawRectangle(g,Color.black,10,10);
drawRectangle(g,Color.blue,10,40);
drawRectangle(g,Color.cyan,10,70);
drawRectangle(g,Color.darkGray,10,100);
drawRectangle(g,Color.pink,10,130);
drawRectangle(g,Color.green,10,170);
drawRectangle(g,Color.lightGray,10,200);
drawRectangle(g,Color.magenta,10,230);
drawRectangle(g,Color.orange,10,260);
drawRectangle(g,Color.red,10,290);
drawRectangle(g,Color.white,10,320);
drawRectangle(g,Color.yellow,10,350);
drawRectangle(g,Color.gray,10,380);
}

public void drawRectangle(Graphics g,Color c,int x,int y)
{

g.setColor( c );
g.fillRect( x, y, 280, 280 );
}
}

Attachment:- DrawRectangles.zip