testjprogressbar.java

Java讲义与实例

import javax.swing.*;
import java.awt.event.*;
public class testJProgressBar extends JFrame{
    JPanel jpanel1;
    JProgressBar jprogressbar1;
    public testJProgressBar(){
        super("testJProgressBar");
        setSize(300,100);
        jpanel1=new JPanel();
        jprogressbar1=new JProgressBar(0,0,1000);
        jprogressbar1.setValue(0);
        jprogressbar1.setStringPainted(true);
        jprogressbar1.setBorderPainted(true);
        jpanel1.add(jprogressbar1);
        this.getContentPane().add(jpanel1);
        }
    public void progressRun(){
        int progressNum=0;
        while(progressNum<=1000){
            jprogressbar1.setValue(progressNum);
            try{
                Thread.sleep(1000);
                }catch(Exception e){}
            progressNum+=50;
            }
        }
    public static void main(String as[]){
        testJProgressBar tp=new testJProgressBar();
        tp.show();
        tp.progressRun();
        tp.addWindowListener(new WindowAdapter(){
        public void windowClosing(WindowEvent e){
            System.exit(0);
            }
        });
        }
    }