Java从入门到精通 - JProgressBarTest 进度条设置

import java.awt.BorderLayout;
import java.awt.FlowLayout;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import javax.swing.filechooser.*;
import javax.swing.*;
public class JProgressBarTest  extends JFrame{

 public JProgressBarTest() {
  super();
  setTitle("表格");
  setBounds(100,100,350,150);
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  final JButton button = new JButton("           ");
  final JButton button2 = new JButton("完成");
  button2.setEnabled(false); //初始化时不可用
  button.setBounds(100,100,100,100);
  
  final JProgressBar progressBar = new JProgressBar();
  progressBar.setStringPainted(true);  //显示提示信息
  progressBar.setIndeterminate(false);   //确定进度的进度条
  //progressBar.setIndeterminate(true);   //不确定进度的进度条
  //progressBar.setString("升级中...");    //确定信息时加上此条，则提示升级中，没有%比，如是不加上这个，则会提示%
  setLayout(new FlowLayout(2,10,10));
  getContentPane().add(button);  //布局处理
  getContentPane().add(button2);  //布局处理
  getContentPane().add(progressBar);  //布局处理
  new Progress(progressBar,button2).start();   //自定义类progress
 }

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  JProgressBarTest jProgressBarTest = new JProgressBarTest();
  jProgressBarTest.setVisible(true);
 }

}
class Progress extends Thread{//自定义类progress
 private final int []progressValue = {6,18,27,39,51,66,81,100};
 private JProgressBar progressBar;
 private JButton button;
 public Progress(JProgressBar progressBar,JButton button)
 {
  this.progressBar = progressBar;
  this.button =button;
 }
 public void run()
 {
  for(int i=0;i<progressValue.length;i++)
  {
   try
   {
    Thread.sleep(1000);
   }catch(Exception e)
   {
    e.printStackTrace();
   }
   progressBar.setValue(progressValue[i]);  //进度值
  }
  progressBar.setIndeterminate(false);  //采用确定的进度条
  //progressBar.setIndeterminate(true);   //不确定进度的进度条
  progressBar.setString("升级完成.");  //提示信息
  button.setEnabled(true);  //按钮可用
 }
}