import java.awt.*;
import java.awt.Canvas;


/**
 * @author Remi Forax
 *
 */
public class MyComponent extends Canvas {

  public void paint(Graphics g) {
    g.drawLine(0,0,getWidth(),getHeight());
  }


  public static void main(String[] args) {
    Frame frame=new Frame("MyComponent");
    frame.add(new MyComponent());
    frame.setSize(400,300);
    frame.show();
  }
}