import java.awt.*;
import javax.swing.*;

class Program extends JFrame {
	Canvas vaszon = new Vaszon();
	Program() {		
		add(vaszon);
		setSize(300, 200);
		setVisible(true);
	}

	class Vaszon extends Canvas {
		public void paint(Graphics g) {
			g.drawLine(10,10, 50, 50);
		}
	}

	public static void main(String args[]) {
		new Program();
	}	
}