import java.awt.Frame;
import java.awt.AWTEvent;
import java.awt.event.WindowEvent;
import java.awt.Canvas;
import java.awt.Graphics;
import java.awt.Color;
import java.awt.Rectangle;

public class CheckerBoard extends Frame{
	public static void main(String[] args) {
	
		new CheckerBoard();
	}
	CheckerBoard()
	{
		enableEvents(AWTEvent.WINDOW_EVENT_MASK);
		Squares squares = new Squares();
		add(squares);
		pack();
		show();
	}
	public void processWindowEvent(WindowEvent event)
	{
		if(event.getID() == WindowEvent.WINDOW_CLOSING)
		{
			System.exit(0);
		}
	}
}

class Squares extends Canvas
{
	Squares()
	{
		setSize(400,400);
	}
	public void paint(Graphics g)
	{
		Rectangle b = getBounds();
		
		int height = b.height / 4;
		int width = b.width / 4;
				
		int x = 0;
		int y = 0;
		int count = 0;
		
		
		Color Black = Color.black;
		Color White = Color.white;
		for(int o = 0; o < 4;o++)
		{
			
			
			for(int i =0; i < 4; i++,x+=height,count++)
			{
				//Checks to see if the count Variable is even
				if(count%2 == 0)
				{
					g.setColor(Black);
				} else {
					g.setColor(White);
				}
				g.fillRect(x, y, width, height);
			}
			
			count++;
			
			x=0;
			y+=width;
		}
	}
}