package JTabel;
import javax.swing.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.*;
import java.util.Date;
import java.text.SimpleDateFormat;
/**
* <p>File: StopWatch.java</p>
* <p>Description: </p>
* <p><a href="">Chance</a>
*/
public class StopWatch extends JFrame {
JButton btnStart,btnStop;
JLabel label;
Timer timer;
public StopWatch() {
label=new JLabel("00:00:00.000");
btnStart=new JButton("start");
btnStop=new JButton("stop");
final int delay=100;
final Date startTime=new Date();
final SimpleDateFormat sdf=new SimpleDateFormat("HH:mm:ss.S");
final Action taskPerformer = new AbstractAction() {
public void actionPerformed(ActionEvent evt) {
//鏄劇ず鏃墮棿
Date d=new Date(System.currentTimeMillis()-startTime.getTime()-28800000);
label.setText(sdf.format(d));
label.repaint();
}
};
btnStart.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt) {
startTime.setTime(new Date().getTime());
timer=new Timer(delay, taskPerformer);
timer.start();
}
});
btnStop.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt) {
if(timer!=null&&timer.isRunning())
timer.stop();
}
});
Container c=getContentPane();
c.add(label,BorderLayout.NORTH);
c.add(btnStart,BorderLayout.CENTER);
c.add(btnStop,BorderLayout.SOUTH);
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
private static void createAndShowGUI() {
StopWatch window=new StopWatch();
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.pack();
window.setVisible(true);
}
}
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妳只需把其中的格式化顯示時間的dateformat類去掉，只參照計時器的部分