import java.awt.Color;
import java.awt.Graphics;
import java.awt.Polygon;
import javax.swing.JFrame;

/**
 *
 * @author cheknevis.blog.ir
 */
public class Shapes extends JFrame {
    
    public Shapes(){
        super("Shapes - cheknevis.blog.ir");
        setSize(600, 600);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        
    }
    
    @Override
    public void paint(Graphics g){
        super.paint(g);
        g.setColor(Color.blue);
        g.drawLine(50, 200, 150, 400);
        g.setColor(Color.red);
        g.drawRect(50, 55, 150, 50);
        g.setColor(Color.green);
        g.drawOval(100, 120, 150, 150);
        Polygon poly = new Polygon();
        poly.addPoint(250, 55);
        poly.addPoint(250, 100);
        poly.addPoint(350, 100);
        g.drawPolygon(poly);
        poly.addPoint(500, 55);
        poly.addPoint(500, 100);
        poly.addPoint(350, 100);
        g.fillPolygon(poly);
    }
    
    public static void main(String[] args){
        Shapes s = new Shapes();
        s.setVisible(true);
    }
    
}