How to create a checker board and convert to image?

int [][] maxtrixchessboard = new int [w][h];
int numw = (int)(Math.ceil(w/tileSize));
numh = (int)(Math.ceil(h/tileSize));
 
for (int i=0; i<numw;i+=tileSize){
    for (int j=0; j<numh;j+=tileSize){
        for (int k=i; k<i+tileSize;k++){
            for (int l=j;l<j+tileSize;l++){
                if ((i+j)%2 ==0)
                    maxtrixchessboard[k][l] = 0xffffff; //white value;
                else
                    maxtrixchessboard[k][l] = 0; //black value
            }
        }
    }
}

                                              

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// create new image
ImageProcessor checkerboard = new ByteProcessor(w, h);
 
// write code for creating checkerboard image here
		
int numw = (int)(Math.ceil(w/tileSize));
int numh = (int)(Math.ceil(h/tileSize));
 
for (int i=0; i<numw;i+=tileSize){
	for (int j=0; j<numh;j+=tileSize){
		for (int k=i; k<i+tileSize;k++){
			for (int l=j;l<j+tileSize;l++){
               if ((i+j)%2 ==0)
	             checkerboard.putPixel(k, l, 255);  //white value;
               else
	             checkerboard.putPixel(k, l, 0);  //black value;
			}
		}
	}
}

                                              

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// create new image
ImageProcessor checkerboard = new ByteProcessor(w, h);
 
// write code for creating checkerboard image here
                
int numw = (int)(Math.ceil(w/tileSize));
int numh = (int)(Math.ceil(h/tileSize));
 
for (int i=0; i<w;i+=tileSize){
        for (int j=0; j<h;j+=tileSize){
                for (int k=i; k<i+tileSize;k++){
                        for (int l=j;l<j+tileSize;l++){
               if ((i+j)%2 ==0)
                     checkerboard.putPixel(k, l, 255);  //white value;
               else
                     checkerboard.putPixel(k, l, 0);  //black value;
                        }
                }
        }
}

                                              

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int numw = (int)(Math.ceil(w/tileSize));
int numh = (int)(Math.ceil(h/tileSize));
 
for (int now=0; now<numw;now++)
		for (int noh=0; noh<numh;noh++)
for (int i=0; i<w;i+=tileSize){
		for (int j=0; j<h;j+=tileSize){
for (int k=i; k<i+tileSize;k++){
		for (int l=j;l<j+tileSize;l++){
			   if ((now+noh)%2 ==0)
	 checkerboard.putPixel(k, l, 255);  //white value;
			   else
	 checkerboard.putPixel(k, l, 0);  //black value;
						}
}
		}
}

                                              

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package moment;
 
import javax.swing.*;
import java.awt.*;
 
public class Run extends JFrame
{
	public Run()
	{
		super("Example");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setSize(600, 400);
		add(new JComponent()
		{
			public void paintComponent(Graphics g)
			{
				super.paintComponent(g);
 
				int w = getWidth();
				int h = getHeight();
				int tileSize = 8;
 
				int numw = (int) (Math.ceil(w*1.0 / tileSize));
				int numh = (int) (Math.ceil(h*1.0 / tileSize));
 
				for (int i = 0; i < numw; i ++)
				{
					for (int j = 0; j < numh; j ++)
					{
						for (int k = i*tileSize; k < (i+1)*tileSize; k++)
						{
							for (int l = j*tileSize; l < (j+1)*tileSize; l++)
							{
								if ((i + j) % 2 == 0)
									g.setColor(Color.WHITE);
								else
									g.setColor(Color.BLACK);
								
								g.fillRect(k,l,1,1);
							}
						}
					}
				}
			}
		});
		setLocationRelativeTo(null);
		setVisible(true);
	}
 
	public static void main(String[] a)
	{
		new Run();
	}
}
                                              

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