DiamondExample

import acm.program.*;
import acm.graphics.*;
 
public class DiamondExample extends GraphicsProgram {
	public void run() {
		GPolygon diamond = new GPolygon();
		diamond.addVertex(-30, 0);
		diamond.addVertex(0, 40);
		diamond.addVertex(30, 0);
		diamond.addVertex(0, -40);
		add(diamond, getWidth() / 2, getHeight() / 2);
	}
 
	private static final long serialVersionUID = 1;
}