timerexpample.java

来自「简单的java入门编程」· Java 代码 · 共 47 行

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class TimerExample extends JFrame
    implements ActionListener {
	private JTextField secsField,minsField;
	private JLabel secsLabel,minsLabel;
	private int ticks=0;
	private Timer timer;
	
	public static void main (String[] args){
		TimerExample frame=new TimerExample();
		frame.setSize(300,100);
		frame.createGUI();
		frame.show();
	} 
	private void createGUI(){
		
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		Container window=getContentPane();
		window.setLayout(new FlowLayout());
		
		minsLabel=new JLabel("Mins:");
		window.add(minsLabel);
		
		minsField=new JTextField(2);
		window.add(minsField);
			
		secsLabel=new JLabel("Secs:");
		window.add(secsLabel);
		
		secsField=new JTextField(2);
		window.add(secsField);
		
		timer=new Timer(1000,this);
		timer.start();
		
	} 
	public void actionPerformed(ActionEvent event){
		minsField.setText(Integer.toString(ticks/60));
		secsField.setText(Integer.toString(ticks%60));
		ticks=ticks+1;
		
	}
	
}