Something

import java.applet.Applet;
import java.awt.*;
public class draw2 extends Applet 
{ 
public void paint( Graphics g ){

setForeground(Color.gray);
int linecounter, charcounter;	

		for(linecounter = 1; linecounter <= 20; linecounter++)
		{
			for(charcounter = linecounter; charcounter <= 20; charcounter++)
			{
				g.drawString("X",10,10+(5*charcounter));
			}
		g.drawString("x",10+(5*linecounter),10+(5*linecounter));
		}
}
}