import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.math.*;
import java.lang.*;

public class ForWhile extends Frame {


public void paint(Graphics g) {
    Graphics2D graph = (Graphics2D)g;
      graph.setStroke(new BasicStroke(3.0f));
      graph.setColor(Color.black);
     double x1 = 200;
     double x2 =200;
     double y1 = 200;
    double y2 = 300;

      for(int i = 1 ; i<=10 ; i++)
      {
          graph.setColor(new Color((int)(Math.random()*255),(int)(Math.random()*255),(int)(Math.random()*255)));
         if(i%2 == 0) {
             x1+=100;
          Line2D line = new Line2D.Double(x1 , y1 , x2 , y2);

          graph.draw(line);

         }
         else
         {
             x2+=100;
              Line2D line = new Line2D.Double(x2 , y2 , x1 , y1);

              graph.draw(line);
         }
             }
      }




    public static void main(String[] args) {
          Frame frame = new ForWhile();

          frame.addWindowListener(
                  new WindowAdapter(){
                      public void windowClosing(WindowEvent we){
                      System.exit(0);
                     }
                    }
                  );
          frame.setSize(1000, 1000);
          frame.setVisible(true);
    }



}