Java Swing 之进度条的使用

/**
 * java swing 之进度条的使用
 * @author gao
 */
package com.gao;

import java.awt.FlowLayout;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.border.EmptyBorder;

public class JProgressBarDemo extends JFrame {
    public JProgressBarDemo(){
    	this.setTitle("进度条的使用");
    	this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	this.setBounds(100, 100, 250, 100);
    	JPanel contentPane=new JPanel();
    	contentPane.setBorder(new EmptyBorder(5,5,5,5));
    	this.setContentPane(contentPane);
    	contentPane.setLayout(new FlowLayout(FlowLayout.CENTER,5,5));
    	final JProgressBar progressBar=new JProgressBar();
    	progressBar.setStringPainted(true);
    	new Thread(){
    		public void run(){
    			for(int i=0;i<=100;i++){
    				try{
    					Thread.sleep(100);
    				}catch(InterruptedException e){
    					e.printStackTrace();
    				}
    			      progressBar.setValue(i);
    			}
    			progressBar.setString("升级完成！");
    		}
    	}.start();
    	contentPane.add(progressBar);
    	this.setVisible(true);
    }
    public static void main(String[]args){
    	JProgressBarDemo example=new JProgressBarDemo();
    }
}