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

public class Lab2Part2 extends JFrame{
   private JButton jbShow;
   private JProgressBar progressb;
   private JProgressBar progressb2;

   public static void main(String [] args){
      (new Thread()).start();

      Lab2Part2 p2 = new Lab2Part2();
      p2.setTitle("Lab 2");
      p2.pack();
      p2.setLocationRelativeTo(null);
      p2.setDefaultCloseOperation( EXIT_ON_CLOSE );
      p2.setVisible(true);
      p2.setResizable(true);
   }//end main

   public Lab2Part2(){
      progressb = new JProgressBar();
      progressb2 = new JProgressBar();

      InnerProgress p1 = new InnerProgress("Progress 1", progressb);
      InnerProgress p2 = new InnerProgress("Progress 2", progressb2);



      JPanel jpMain = new JPanel(new GridLayout(0,1));
      jbShow = new JButton("Let's start this show");
      jpMain.add(jbShow);
      jpMain.add(p1);
      jpMain.add(p2);

      add (jpMain, BorderLayout.CENTER);
      jbShow.addActionListener( new ActionListener(){
            public void actionPerformed(ActionEvent ae){
               Thread t1 = new Thread(p1);
               Thread t2 = new Thread(p2);

               t1.start();
               t2.start();
            }
         });

   }//end constructor

   class InnerProgress extends JPanel implements Runnable{
      private String progress;
      private JProgressBar progressb;
      private boolean keepGoing = true;

      public InnerProgress(String _progress, JProgressBar _progressb){
         this.progress = _progress;
         this.progressb = _progressb;
         this.add(new JLabel(progress));
         this.add(progressb);
         progressb.setStringPainted(true);

         progressb.setMaximum(80);
         progressb.setMinimum(0);
      }

      public void run(){
         progressb.setIndeterminate(true);
         final long startTime = System.currentTimeMillis();
         System.out.println("We are running" + progress);
         for(int i=0; i<=80 && keepGoing == true; i++){

            int sleepTime =(int)(Math.random() * 100);


            try{
            Thread.sleep(sleepTime);
            }
            catch(InterruptedException e){

            }

           progressb.setValue(i);

           final long endTime = System.currentTimeMillis();
           System.out.println("We are running" + progress+ endTime);
         }
         keepGoing = false;
         progressb.setIndeterminate(true);

      }
   }

}//end class