秒表软件设计，Java源代码

import java.awt.*; import javax.swing.*; import java.awt.event.*; public class StopWatch extends JFrame //继承父类 { JPanel mainPane,disPane,ctrPane,lPane; //定义用于界面布局的面板 JButton startbutton,pausebutton,stopbutton,rebutton; //按纽 JLabel[] dislabel; JLabel[] clabel; JLabel plabel; Timer[] t; boolean flag=true;// int counts=0; int size=100; int MaxSize; int ms=0,s=0,m=0,h=0; String input; boolean ch=false; public StopWatch() { mainPane=new JPanel(); setContentPane(mainPane); mainPane.setLayout(new BoxLayout(mainPane,BoxLayout.Y_AXIS)); disPane=new JPanel(); mainPane.add(disPane); disPane.setSize(250,100); disPane.setLayout(new GridLayout(1,7,2,2));//创建布局管理器，参数分别代表行，列，组件间的水平，垂直间距（在awt包中） ctrPane=new JPanel(); mainPane.add(ctrPane); ctrPane.setSize(250,100); ctrPane.setLayout(new GridLayout(1,4,10,10)); input=JOptionPane.showInputDialog(this,"Please input the number");//弹出对话框要求输入测试次数 if(input==null) { System.exit(0); } MaxSize=Integer.parseInt(input); //最大测试次数为输入的数字 dislabel=new JLabel[4]; for(int i=0;i<4;i++) { dislabel[i]=new JLabel("00"); } clabel=new JLabel[2]; for(int i=0;i<2;i++) { clabel[i]=new JLabel(":"); } plabel=new JLabel("."); disPane.add(dislabel[3]); disPane.add(clabel[1]); disPane.add(dislabel[2]); disPane.add(clabel[0]); disPane.add(dislabel[1]); disPane.add(plabel); disPane.add(dislabel[0]); lPane=new JPanel(); mainPane.add(lPane); lPane.setLayout(new BoxLayout(lPane,BoxLayout.Y_AXIS)); startbutton=new JButton("Start"); startbutton.setSize(50,30); startbutton.addActionListener(new Start()); //注册 pausebutton=new JButton("Pause"); pausebutton.setSize(50,30); pausebutton.addActionListener(new Pause()); stopbutton=new JButton("Stop"); stopbutton.setSize(50,30); stopbutton.addActionListener(new Stop()); rebutton=new JButton("Reset"); rebutton.setSize(50,30); rebutton.addActionListener(new Reset()); ctrPane.add(startbutton); ctrPane.add(pausebutton); ctrPane.add(stopbutton); ctrPane.add(rebutton); t=new Timer[4]; t[0]=new Timer(10,new TimerListener()); t[1]=new Timer(1000,new TimerListener()); t[2]=new Timer(60000,new TimerListener()); t[3]=new Timer(3600000,new TimerListener()); setTitle("StopWatch"); this.setVisible(true); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //框架关闭时结束 setLocation(200,200); setSize(350,80); //pack(); validate(); } class Start implements ActionListener //实现监听器接口 { public void actionPerformed(ActionEvent e) { flag=true; t[0].start(); ch=true; if(counts==MaxSize) { lPane.removeAll(); setSize(350,80); size=100; counts=0; } validate(); } } class Pause implements ActionListener { public void actionPerformed(ActionEvent e) { flag=false; for(int i=0;i<4;i++) { t[i].stop(); } } } class Stop implements ActionListener { public void actionPerformed(ActionEvent e) { if(ch==true && flag) { counts++; //对测试次数进行记数 lp p=new lp(); size=size+35; setSize(350,size); p.ldis.setText("No."+counts+" : "+h+":"+m+":"+s+"."+ms);//显示记时结果 lPane.add(p); validate(); if(counts==MaxSize) { dislabel[0].setText("00"); dislabel[1].setText("00"); dislabel[2].setText("00"); dislabel[3].setText("00"); t[0].stop(); t[1].stop(); t[2].stop(); t[3].stop(); counts=MaxSize; ch=false; ms=0;s=0;m=0;h=0; } } } } class Reset implements ActionListener { public void actionPerformed(ActionEvent e) { setVisible(false); new StopWatch(); } } class TimerListener implements ActionListener { public void actionPerformed(ActionEvent e) { ms++; dislabel[0].setText(""+ms); if(ms==99) { t[1].start(); s++; dislabel[1].setText(""+s); ms=0; if(s==59) { t[2].start(); m++; dislabel[2].setText(""+m); s=0; if(m==59) { t[3].start(); h++; dislabel[4].setText(""+h); m=0; } } } } } public static void main(String[] args) { new StopWatch(); } class lp extends JPanel { JTextField ldis; lp() { ldis=new JTextField(); ldis.setEditable(false); this.setSize(250,20); this.add(ldis); } } }