clocklabel.java

很完善的计算器哦

package calculator;

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

public class ClockLabel extends JLabel implements ActionListener
{

	public ClockLabel()
	{
		super("" + new Date());
		Timer t = new Timer(1000, this);
		t.start();
	}

	public void actionPerformed(ActionEvent ae)
	{
		setText((new Date()).toString());
	}
	
}