import java.awt.event.ActionEvent;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.Timer;
import javax.swing.*;
import javax.swing.Timer;public class Test1 {
public static void main(String[] args){
ActionListener li = new TimePrinter();
javax.swing.Timer t = new javax.swing.Timer(1000,li);
t.start();
//JOptionPane.showMessageDialog(null,"Quit program?"); ---------->加上注释就无法执行println语句,去掉注释就可以了,这是为什么?
//System.exit(0); }
}class TimePrinter implements ActionListener{
public void actionPerformed(ActionEvent event){
java.util.Date now = new java.util.Date();
System.out.println("at the tone"+now);
Toolkit.getDefaultToolkit().beep();
}
}
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.Timer;
import javax.swing.*;
import javax.swing.Timer;public class Test1 {
public static void main(String[] args){
ActionListener li = new TimePrinter();
javax.swing.Timer t = new javax.swing.Timer(1000,li);
t.start();
//JOptionPane.showMessageDialog(null,"Quit program?"); ---------->加上注释就无法执行println语句,去掉注释就可以了,这是为什么?
//System.exit(0); }
}class TimePrinter implements ActionListener{
public void actionPerformed(ActionEvent event){
java.util.Date now = new java.util.Date();
System.out.println("at the tone"+now);
Toolkit.getDefaultToolkit().beep();
}
}
不加注释,显示了一个Modal窗口, 点确定后才退出
import java.util.TimerTask;class myTimeTask extends TimerTask
{ /* (非 Javadoc)
* @see java.util.TimerTask#run()
*/
public void run()
{
// TODO 自动生成方法存根
java.util.Date now = new java.util.Date();
System.out.println("myTimeTask"+now);
}
}
public class Test1b
{ public static void main(String[] args)
{
myTimeTask mtt=new myTimeTask();
Timer t=new Timer();
t.schedule(mtt,1000,1000);
}
}