线程的简单程序 (秒表器)

给一个界面上面一个文本框下面两个按钮一个是(开始)另一个是(继续/暂停) 点开始时开始计时,点第二个按钮就暂停再点第二个按钮就又开始. 谢谢各位高手!

解决方案 »

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import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.Timer;
public class Test {
private JTextField jt;
private Timer time;
public Test() {
JFrame jf = new JFrame();
jf.setSize(200, 200);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel jp = new JPanel();
jp.setLayout(new FlowLayout());
jt = new JTextField();
jt.setText("点击按钮开始显示时间");
JButton jb1 = new JButton("开始");
jb1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
time = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent e) {
Calendar c = Calendar.getInstance();
SimpleDateFormat sd = new SimpleDateFormat(
"yyyy-MM-dd HH:ss");
String nowTime = sd.format(c.getTime());
jt.setText(nowTime);
}
});
time.start();
}
});
JButton jb2 = new JButton("结束");
jb2.addActionListener(new ActionListener() { @Override
public void actionPerformed(ActionEvent arg0) {
time.stop();
} });
jp.add(jt);
jp.add(jb1);
jp.add(jb2);
jf.add(jp);
jf.setVisible(true);
}
public static void main(String[] args) {
new Test();
}}
楼主的意思是可以resume的，可惜suspend不好用，呵呵
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;class TimerFrame extends JFrame
{
private JLabel showTime=new JLabel();
private int hour;
private int min;
private int sec;
private int msec;
private Timer timer;
public TimerFrame(){
timer=new Timer(100,new UpdateTimeAction());
JButton startBut=new JButton("Start");
startBut.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
timer.start();
}
}); JButton pauseBut=new JButton("Start/Pause");
pauseBut.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(timer.isRunning())
timer.stop();
else
timer.start();
}
});
JButton clearBut=new JButton("Clear");
clearBut.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
hour=0;
min=0;
sec=0;
msec=0;
showTime.setText(hour+":"+min+":"+sec+"."+msec);
}
}); showTime.setHorizontalAlignment(SwingConstants.CENTER);
add(showTime,BorderLayout.CENTER);
JPanel panel=new JPanel();
panel.add(startBut);
panel.add(pauseBut);
panel.add(clearBut);
add(panel,BorderLayout.SOUTH);
setSize(300,200);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
} private class UpdateTimeAction implements ActionListener{
public void actionPerformed(ActionEvent e){
addMsec();
showTime.setText(hour+":"+min+":"+sec+"."+msec);
}
}
private void addMsec(){
msec++;
if(msec==10){
msec=0;
sec++;
if(msec==60){
msec=0;
min++;
if(min==60){
min=0;
hour++;
}
}
}
}
public static void main(String[] args)
{
new TimerFrame();
}}
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>计时器</TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD><BODY bgcolor='#FF9966'>
<br/><br/><br/><br/><br/><br/><br/><br/><br/>
<div align='center'><font size='5' face='黑体'>*天王表为您计时*</font><br/><br/><input name='aa' value='单击按钮开始计时'><br/><br/><input name='bb' type='button' value='count' onclick='check()'><input name='cc' value='clear' onclick='check1()' type='button'></div>
<script>
var timeout=0
function check()
{
if(timeout==0)
   {
    bb.value='pause';
window.status='若要暂停,请单击pause';
count1();
}
   else
    { //alert(timeout);
     bb.value='count';
     window.status='若要开始计时,请单击count';
     clearTimeout(timeout)/*清空计数器的作用,是停止计数器所代表的函数的动作.而不是清空计数器里的值.*/
//alert(timeout);
timeout=0;
  //alert(timeout);
      }
   }
var hh=0;
var mm=0;
var ss=0;
function count1()
{    ss++;

if(ss>59)
   {
    ss=0;
    mm++;
}
if(mm>59)
   {
mm=0;
hh++
}
  aa.value=eval("hh+'小时'+mm+'分'+ss+'秒'")
  //或者可以写成aa.value=hh+'小时'+mm+'分'+ss+'秒'
  timeout=setTimeout('count1()',1000)
} function check1()
{
  clearTimeout(timeout);
  timeout=0,ss=0,mm=0,hh=0;
  aa.value=eval("hh+'小时'+mm+'分'+ss+'秒'")
}
</script></BODY>
</HTML>
是啊，手误吧sec写成msec了
重新改过的代码。import javax.swing.*;
import java.awt.event.*;
import java.awt.*;class TimerFrame extends JFrame
{
private JLabel showTime=new JLabel();
private int hour;
private int min;
private int sec;
private int msec;
private Timer timer;
public TimerFrame(){
timer=new Timer(100,new UpdateTimeAction());
JButton startBut=new JButton("Start");
startBut.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
timer.start();
}
}); JButton pauseBut=new JButton("Start/Pause");
pauseBut.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(timer.isRunning())
timer.stop();
else
timer.start();
}
});
JButton clearBut=new JButton("Clear");
clearBut.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
hour=0;
min=0;
sec=0;
msec=0;
showTime.setText(hour+":"+min+":"+sec+"."+msec);
timer.stop();
}
}); showTime.setHorizontalAlignment(SwingConstants.CENTER);
add(showTime,BorderLayout.CENTER);
JPanel panel=new JPanel();
panel.add(startBut);
panel.add(pauseBut);
panel.add(clearBut);
add(panel,BorderLayout.SOUTH);
setSize(300,200);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
} private class UpdateTimeAction implements ActionListener{
public void actionPerformed(ActionEvent e){
addMsec();
showTime.setText(hour+":"+min+":"+sec+"."+msec);
}
}
private void addMsec(){
msec++;
if(msec==10){
msec=0;
sec++;
if(sec==60){
sec=0;
min++;
if(min==60){
min=0;
hour++;
}
}
}
}
public static void main(String[] args)
{
new TimerFrame();
}}