JAVA计时器(秒表)程序代码

Java计时器（秒表）功能：能实现计时，暂停，清零，记录功能。

如下图：程序运行状态：
源代码：
import javax.swing.*;
import java.awt.*;
import .*;
public class Test {
public static void main(String[] args){
new window("计时器");
}
}
class window extends JFrame{
int ON=0,i=0,j=0,k=0,count=0,num=1,R=0;
JButton button1,button2,button3,button4,button5; JTextField file1,file2,file3;
JTextArea file;
FlowLayout flow;
String a,b,c;
window(String name)
{
file1=new JTextField(2);
file2=new JTextField(2);
file3=new JTextField(2);
file1.setEditable(false);
file2.setEditable(false);
file3.setEditable(false);
file=new JTextArea(10,8);
file.setEditable(false);
button1=new JButton("开始");
button2=new JButton("暂停");
button3=new JButton("清零");
button4=new JButton("记录");
button5=new JButton("清空记录");
flow=new FlowLayout();
flow.setAlignment(FlowLayout.LEFT); flow.setHgap(20);
flow.setVgap(10);
setTitle(name);
setSize(210,400);
setLayout(flow);
add(file1);
add(new JLabel(":"));
add(file2);
add(new JLabel(":"));
add(file3);
add(button1);
add(button2);
add(button3);
add(button4);
add(button5);
add(file);
setVisible(true); setDefaultCloseOperation(EXIT_ON_CLOSE); file1.setText("0");
file2.setText("0");
file3.setText("0");
validate();
button1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { ON=1; //开始，暂停控制开关
}
}); //开始按钮
button2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e){ ON=0;
}
}); //暂停按钮
button3.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e){ R=1; //清零控制开关
}
}); //清零按钮
button4.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e)
{
count=1; //记录控制开关
a=String.valueOf(i);
b=String.valueOf(j);
c=String.valueOf(k);
}
}); //记录按钮
button5.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e)
{
file.setText("");
num=1;
}
}); //清除记录按钮
while(true)
{
validate();
if(ON==1) //开始或暂停判断
{
file1.setText(String.valueOf(i));
file2.setText(String.valueOf(j));
file3.setText(String.valueOf(k));
if(k==99)
{
k=-1;
j++;
}
if(j==60)
{
k=0;
j=0;
i++;
}
if(i==24)
{
i=0;
j=0;
k=0;
}
try{
Thread.sleep(10);
}
catch(Exception e){
}
k++;
}
if(count==1)//记录判断
{
file.append(String.valueOf(num));
file.append(". ");
file.append(a);
file.append(":");
file.append(b);
file.append(":");
file.append(c);
file.append("\n");
num++;
count=0;
}
if(R==1)//清零判断
{
i=j=k=0;
file1.setText(String.valueOf(i));
file2.setText(String.valueOf(j));
file3.setText(String.valueOf(k));
R=0;
}
}
}
}。