java导入进度条实现 java swing进度条

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1. /**
2.  * java swing 之进度条的使用
3.  * @author gao
4.  */  
5. package com.gao;  
6.   
7. import java.awt.FlowLayout;  
8.   
9. import javax.swing.JFrame;  
10. import javax.swing.JPanel;  
11. import javax.swing.JProgressBar;  
12. import javax.swing.border.EmptyBorder;  
13.   
14. public class JProgressBarDemo extends JFrame {  
15. public JProgressBarDemo(){  
16. this.setTitle("进度条的使用");  
17. this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
18. this.setBounds(100, 100, 250, 100);  
19. new JPanel();  
20. new EmptyBorder(5,5,5,5));  
21. this.setContentPane(contentPane);  
22. new FlowLayout(FlowLayout.CENTER,5,5));  
23. final JProgressBar progressBar=new JProgressBar();  
24. true);  
25. new Thread(){  
26. public void run(){  
27. for(int i=0;i<=100;i++){  
28. try{  
29. 100);  
30. catch(InterruptedException e){  
31.                         e.printStackTrace();  
32.                     }  
33.                       progressBar.setValue(i);  
34.                 }  
35. "升级完成！");  
36.             }  
37.         }.start();  
38.         contentPane.add(progressBar);  
39. this.setVisible(true);  
40.     }  
41. public static void main(String[]args){  
42. new JProgressBarDemo();  
43.     }  
44. }