JAVA进度条制作，让大家一起分享！

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

public class ProgressBarDemo implements ActionListener,ChangeListener
{
     JFrame f = null;
     JProgressBar progressbar;
     JLabel label;
     Timer timer;
     JButton b;

     public ProgressBarDemo()
     {
         f = new JFrame("progressbar Example");
         Container contentPane = f.getContentPane();

         label = new JLabel(" ",JLabel.CENTER);
         progressbar = new JProgressBar();
         progressbar.setOrientation(JProgressBar.HORIZONTAL);
         progressbar.setMinimum(0);
         progressbar.setMaximum(100);
         progressbar.setValue(0);
         progressbar.setStringPainted(true);
         progressbar.addChangeListener(this);
         progressbar.setPreferredSize(new Dimension(200,20));
         progressbar.setBorderPainted(true);
         progressbar.setBackground(Color.pink);

         JPanel panel = new JPanel();
         b = new JButton("Start");
         b.setForeground(Color.orange);
         b.addActionListener(this);
         panel.add(b);

         timer = new Timer(50,this);

         contentPane.add(panel,BorderLayout.NORTH);
         contentPane.add(progressbar,BorderLayout.CENTER);
         contentPane.add(label,BorderLayout.SOUTH);

         f.pack();
         f.setVisible(true);

         f.addWindowListener(new WindowAdapter() {
             public void windowClosing(WindowEvent e) {
                 System.exit(0);
             }
         });
     }

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

     public void actionPerformed(ActionEvent e)
     {
         if(e.getSource() == b)
         {
             timer.start();
         }

         if(e.getSource() == timer)
         {
             int value = progressbar.getValue();

             if( value < 100)
             {
                 value++;
                 progressbar.setValue(value);
             }
             else
             {
               timer.stop();
//             new bAndW.BAndW();
//             Report.ReportComplier@1bf6770
//               new Report.ReportComplier();
               //System.out.println(new Report.ReportComplier());
               Double dValue=new Double(1233.213f);
               System.out.println(dValue);
               f.dispose();
             }
         }
     }

     public void stateChanged(ChangeEvent e1)
     {
         int value = progressbar.getValue();

         if(e1.getSource() == progressbar)
         {
             label.setText("目前已完成进度："+Integer.toString(value)+" %");
             label.setForeground(Color.blue);
         }
     }