import java.applet.Applet;
import java.awt.Graphics;
import java.awt.Color;
import java.awt.Frame;

public class pendel extends Applet {
public void paint(Graphics ekraan){
    
    for(int x=120; x<300; x=x+1){
    
    ekraan.setColor(Color.blue);
    ekraan.drawLine(120, 50, x, 400-x);
    try{Thread.sleep(50);}catch(Exception e){}
    ekraan.setColor(Color.white);
    ekraan.drawLine(120, 50, x, 400-x);

    ekraan.setColor(Color.blue);
    ekraan.drawOval(x, 400-x, 20, 20);
    try{Thread.sleep(50);}catch(Exception e){}
    ekraan.setColor(Color.white);
    ekraan.drawOval(x, 400-x, 20, 20);
}
    for(int x=300; x>120; x=x-1){
    
    ekraan.setColor(Color.blue);
    ekraan.drawLine(120, 50, x, 400-x);
    try{Thread.sleep(50);}catch(Exception e){}
    ekraan.setColor(Color.white);
    ekraan.drawLine(120, 50, x, 400-x);

    ekraan.setColor(Color.blue);
    ekraan.drawOval(x, 400-x, 20, 20);
    try{Thread.sleep(50);}catch(Exception e){}
    ekraan.setColor(Color.white);
    ekraan.drawOval(x, 400-x, 20, 20);
  }
  
    for(int x=120; x>-30; x=x-1){
    
    ekraan.setColor(Color.blue);
    ekraan.drawLine(120, 50, x, x+160);
    try{Thread.sleep(50);}catch(Exception e){}
    ekraan.setColor(Color.white);
    ekraan.drawLine(120, 50, x, x+160);

    ekraan.setColor(Color.blue);
    ekraan.drawOval(x, x+160, 20, 20);
    try{Thread.sleep(50);}catch(Exception e){}
    ekraan.setColor(Color.white);
    ekraan.drawOval(x, x+160, 20, 20);
}
    for(int x=-30; x<120; x=x+1){
    
    ekraan.setColor(Color.blue);
    ekraan.drawLine(120, 50, x, x+160);
    try{Thread.sleep(50);}catch(Exception e){}
    ekraan.setColor(Color.white);
    ekraan.drawLine(120, 50, x, x+160);

    ekraan.setColor(Color.blue);
    ekraan.drawOval(x, x+160, 20, 20);
    try{Thread.sleep(50);}catch(Exception e){}
    ekraan.setColor(Color.white);
    ekraan.drawOval(x, x+160, 20, 20);
}
                         
}
}




//}
//   public static void main(String argumendid[]){
 //   Frame f=new Frame("pendel");
//    f.add(new pendel());
//    f.setSize(400, 400);
//    f.setVisible(true);
//};