java天数倒计时代码 java倒计时器 _import

写一个计时器 JAVA代码是什么？应该用线程里面的Timer来控制package com.sy.game.test;
import java.util.Timer;
import java.util.TimerTask;
public class TimeTask {
public static void main(String[] args) {
TimeTask tTask=new TimeTask();
tTask.timeVoid();
}
public void timeVoid(){
final Timer timer = new Timer();
TimerTask tt=new TimerTask() {
@Override
public void run() {
System.out.println("到点啦!");
timer.cancel();
}
};
timer.schedule(tt, 3000);
}
}
整合的：
/*
* java倒计时器
* shiyang
* */
package com.sy.game.test;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.Timer;
@SuppressWarnings("unused")
public class TimeController extends JFrame implements ActionListener {
private static final long serialVersionUID = 4603262282860990473L;
private static final int DEFAULT_WIDTH = 200;
private static final int DEFAULT_HEIGHT = 100;
private static final int width = Toolkit.getDefaultToolkit()
.getScreenSize().width;
private static final int height = Toolkit.getDefaultToolkit()
.getScreenSize().height;
private Container container;
private JButton btn;
private JTextField jtfTime;
private Timer tmr;
public TimeController() {
initComponents();
Timer tmr = new Timer(1000, this);
this.tmr = tmr;
setVisible(true);
}
private void initComponents() {
this.setTitle("SY秒表");
this.setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
this.setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocation((width - DEFAULT_WIDTH) / 2,
(height - DEFAULT_HEIGHT) / 2);
jtfTime = new JTextField("10");
btn = new JButton("开始倒计时");
container = getContentPane();
JPanel panel = new JPanel();
panel.add(btn);
panel.add(jtfTime);
this.add(panel);
btn.addActionListener(this);
}
public void actionPerformed(ActionEvent ae) {
if (ae.getSource() == btn) {
jtfTime.setText("10");
tmr.start();
} else {
int t;
t = Integer.parseInt(jtfTime.getText());
t--;
jtfTime.setText(""t);
if (t = 0) {
tmr.stop();
}
}
}
public static void main(String[] args) {
TimeController timeController = new TimeController();
}
}
用java编写一个倒计时器代码。import java.awt.BorderLayout;import java.awt.Container;import java.awt.Font;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JTextField;public class TimerDemo extends JFrame implements ActionListener {private static final long serialVersionUID = 201306211111L;private JTextField screen = new JTextField("0");private JButton start = new JButton("开始");private JButton reset = new JButton("重置");private JPanel panel = new JPanel();private boolean isRunning;private int time;private int timeBetween;public TimerDemo(int timeBetween) {super("计时器");this.timeBetween = timeBetween;try {init();} catch (Exception e) {e.printStackTrace();}}public TimerDemo() {super("计时器");this.timeBetween = 100;try {init();} catch (Exception e) {e.printStackTrace();}}private void init() {panel.setLayout(new GridLayout());panel.add(start);panel.add(reset);start.addActionListener(this);reset.addActionListener(this);screen.setFont(new Font("幼圆", Font.BOLD, 60));screen.setHorizontalAlignment(JTextField.CENTER);screen.setEditable(false);Container c = getContentPane();c.setLayout(new BorderLayout());c.add(panel, BorderLayout.SOUTH);c.add(screen, BorderLayout.CENTER);this.setSize(200, 150);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);this.setResizable(false);this.setLocationRelativeTo(null);this.setVisible(true);}public static void main(String[] args) {new TimerDemo(1);// 设定 1ms/次// new TimerDemo();}@Overridepublic void actionPerformed(ActionEvent e) {if (e.getSource() == start) {if (start.getText().equals("开始")) {start.setText("暂停");isRunning = true;} else if (start.getText().equals("暂停")) {start.setText("开始");isRunning = false;}}if (e.getSource() == reset) {start.setText("开始");screen.setText("0");isRunning = false;time = 0;}new Thread(new TimeZone()).start();}class TimeZone implements Runnable {@Overridepublic void run() {while (isRunning) {time;if (time = Integer.MAX_VALUE) {screen.setText("ERROR");JOptionPane.showMessageDialog(null, "ERROR");isRunning = false;}screen.setText(String.valueOf(time));try {Thread.sleep(timeBetween);} catch (Exception e) {e.printStackTrace();}}}}}
怎么编写一个倒计时的java的程序？求具体步骤！基于控制台的话很简单的，我跟你说一下大体思路吧，二话不说先来个for循环，然后输出倒计时的数字，程序睡一秒，在输出倒计时数字，如此循环，简单吧，下面看程序：
public static void main(String[] args) {
for(int i=10;i0;i--){
System.out.print(i " ");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.err.print("爆炸");
}
其他基于网页的还是基于用户界面都可以使用这个思路的
java 设计一个简单的倒计时import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
public class TimeThreadFrame extends JFrame{
// 定义组件
private JLabel lblTime;
private JTextField txtInput;
private JButton btnEnter;
// 构造方法
public TimeThreadFrame(){
// 设置窗体的相关属性
super("TimerThread");
this.setSize(300,200);
this.setLayout(null);
this.setLocation(100,50);
// 创建组件
this.lblTime = new JLabel("请输入倒计时时间");
this.lblTime.setBounds(30,20,200,30);
this.txtInput = new JTextField();
this.txtInput.setBounds(30,70,100,30);
this.btnEnter = new JButton("确定");
this.btnEnter.setBounds(150,70,70,30);
// 给JTextField注册监听
this.txtInput.addKeyListener(new KeyListener(){
public void keyPressed(KeyEvent ke) {
}
public void keyReleased(KeyEvent ke) {
}
public void keyTyped(KeyEvent ke) {
txtInput_KeyTyped(ke);
}
});
// 给JButton注册监听
this.btnEnter.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
btnEnter_ActionPerformed(ae);
}
});
// 将各组件添加到窗体上
add(lblTime);
add(txtInput);
add(btnEnter);
// 显示窗体
this.setVisible(true);
}
// 输入时的事件处理，控制用户只能输入数字
public void txtInput_KeyTyped(KeyEvent ke){
if(ke.getKeyChar()'0' || ke.getKeyChar()'9'){
ke.setKeyChar('\0');
}
}
// 点击按钮时的事件处理，核心！
public void btnEnter_ActionPerformed(ActionEvent ae){
// 获得用户输入的倒计时时间
String strTime = this.txtInput.getText();
if(strTime.equals("")){
// 检测用户是否输入
this.lblTime.setText("您尚未输入，请输入！");
【java天数倒计时代码 java倒计时器】}
else{
Integer time = Integer.parseInt(strTime);
// 创建线程
TimeThread tt = new TimeThread(this.lblTime,time);
tt.start();
// 创建Timer
Timer timer = new Timer();
timer.schedule(new TimerTask(){
// 启动其他程序
public void run() {
System.out.print("ok");
}
}, time * 1000);
}
}
// 启动窗体
public static void main(String[] args){
new TimeThreadFrame();
}
}
// 时间线程类
class TimeThread extends Thread{
private JLabel lblTime;
private int time;
// 构造方法传入，显示事件的JLabel和倒计时的时间。
public TimeThread(JLabel lblTime, int time){
this.lblTime = lblTime;
this.time = time;
}
// run方法
public void run(){
while(time0){
// 显示所剩时间
this.lblTime.setText("所剩时间："time);
// 所剩时间减少
time--;
try {
this.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
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java天数倒计时代码 java倒计时器

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