秒表

[java]代码库

package Day0822;

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

public class HomeWork implements ActionListener,Runnable{
	private int x = 0;
	private int y = 0;
	private int z = 0;
	private int num = 0;
	private JFrame jf;
	private JPanel jp;
	private JButton jb;
	private JButton jb1;
	private JButton jb2;
	private JTextField jtf;
	private boolean flag = true;
	private Thread thread = new Thread(this);
	public void init(){
		jf = new JFrame("*********秒表*********");
		jp = new JPanel();
		jb = new JButton("开始");
		jb1 = new JButton("暂停");
		jb2 = new JButton("重置");
		jtf = new JTextField(9);
		
		jf.setSize(300,150);
		jf.setLocationRelativeTo(null);
		jf.setLayout(new FlowLayout());
		jf.setResizable(false);
		
		jtf.setFont(new Font("楷体",1,50));
		jtf.setHorizontalAlignment(JTextField.CENTER);
		jtf.setText(setTime());
		
		jb.addActionListener(this);
		jb1.addActionListener(this);
		jb2.addActionListener(this);
		
		jf.add(jtf);
		jf.add(jb);
		jf.add(jb1);
		jf.add(jb2);
		jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jf.setVisible(true);
	}
	
	public void actionPerformed(ActionEvent e){
		if(e.getSource().equals(jb)){
			flag  = true;
			new Thread(this).start();
		}
		if(e.getSource().equals(jb1)){
			flag = false;
		}
		if(e.getSource().equals(jb2)){
			flag = false;  //线程终止
			num = 0;
			x = 0;
			y = 0;
			z = 0;
			jtf.setText("0:0:0");
			
		}
	}
	public  void run(){
		while(flag){
			try {
				Thread.sleep(1000);
				num = num+1;
				z=(num)%60;
				y = (num/60)%60;
				x = (num/3600)%24;
			} catch (InterruptedException e) {
				e.printStackTrace();
			}finally{
				jtf.setText(setTime());	
			}
		}
	}
	
	public String setTime(){
		return x+":"+y+":"+z;
	}
	public String setTime1(){
		return "0"+x+":0"+y+":0"+z;
	}

	public static void main(String[] arge){
		HomeWork hw = new HomeWork();
		hw.init();
	}
}