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 java.awt.event.*; 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; } } } }