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java-multithread timer包更新至example4,告一段落
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‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example3/MyTask.java

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package com.brianway.learning.java.multithread.timer.example3;
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import java.util.TimerTask;
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/**
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* Created by brian on 2016/4/15.
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*/
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public class MyTask extends TimerTask {
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private int i;
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public MyTask(int i) {
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this.i = i;
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}
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@Override
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public void run() {
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System.out.println("第"+i+"次没有被cancel取消");
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example3/Run3_cancel1.java

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package com.brianway.learning.java.multithread.timer.example3;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.Timer;
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/**
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* Created by Brian on 2016/4/15.
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*/
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/**
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* P249
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* TimerTask类的cancel()方法
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* 将自身从任务队列移除，其他任务不受影响
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*/
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public class Run3_cancel1 {
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public static void main(String[] args) {
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System.out.println("当前时间为："+new Date());
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Calendar calendar = Calendar.getInstance();
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Date runDate = calendar.getTime();
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System.out.println("计划时间为："+ runDate);
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TaskA task1 = new TaskA();
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TaskB task2 =new TaskB();
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Timer timer = new Timer();
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timer.schedule(task1,runDate,4000);
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timer.schedule(task2,runDate,4000);
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}
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}
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/*
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输出：
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当前时间为：Fri Apr 15 23:41:22 CST 2016
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计划时间为：Fri Apr 15 23:41:22 CST 2016
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A run timer=Fri Apr 15 23:41:22 CST 2016
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A任务自己移除自己
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B run timer=Fri Apr 15 23:41:22 CST 2016
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B run timer=Fri Apr 15 23:41:26 CST 2016
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B run timer=Fri Apr 15 23:41:30 CST 2016
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(一直执行，后面省略)
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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example3/Run3_cancel2.java

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package com.brianway.learning.java.multithread.timer.example3;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.Timer;
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/**
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* Created by Brian on 2016/4/15.
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*/
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/**
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* P250
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* Timer类的cancel()方法
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* 全部任务被清除，且进程被销毁
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*/
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public class Run3_cancel2 {
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public static void main(String[] args) throws InterruptedException{
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System.out.println("当前时间为："+new Date());
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Calendar calendar = Calendar.getInstance();
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Date runDate = calendar.getTime();
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System.out.println("计划时间为："+ runDate);
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TaskA2 task1 = new TaskA2();
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TaskB2 task2 =new TaskB2();
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Timer timer = new Timer();
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timer.schedule(task1,runDate,2000);
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timer.schedule(task2,runDate,2000);
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Thread.sleep(10000);
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timer.cancel();
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}
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}
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/*
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输出：
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当前时间为：Fri Apr 15 23:49:29 CST 2016
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计划时间为：Fri Apr 15 23:49:29 CST 2016
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A run timer=Fri Apr 15 23:49:29 CST 2016
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B run timer=Fri Apr 15 23:49:29 CST 2016
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A run timer=Fri Apr 15 23:49:31 CST 2016
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B run timer=Fri Apr 15 23:49:31 CST 2016
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A run timer=Fri Apr 15 23:49:33 CST 2016
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B run timer=Fri Apr 15 23:49:33 CST 2016
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B run timer=Fri Apr 15 23:49:35 CST 2016
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A run timer=Fri Apr 15 23:49:35 CST 2016
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A run timer=Fri Apr 15 23:49:37 CST 2016
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B run timer=Fri Apr 15 23:49:37 CST 2016
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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example3/Run3_cancel3.java

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package com.brianway.learning.java.multithread.timer.example3;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.Timer;
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/**
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* Created by Brian on 2016/4/15.
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*/
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/**
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* P252
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* Timer类的cancel()方法
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* 有时不一定会停止计划任务,（见源码，queue锁）
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*/
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public class Run3_cancel3 {
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public static void main(String[] args) throws InterruptedException{
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int i =0;
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Calendar calendar = Calendar.getInstance();
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Date runDate = calendar.getTime();
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while (true){
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i++;
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Timer timer = new Timer();
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MyTask task = new MyTask(i);
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timer.schedule(task,runDate);
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timer.cancel();
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}
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}
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}
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/*
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输出：
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第1次没有被cancel取消
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第44674次没有被cancel取消
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第44676次没有被cancel取消
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第44678次没有被cancel取消
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第44682次没有被cancel取消
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第44684次没有被cancel取消
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第44686次没有被cancel取消
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第44688次没有被cancel取消
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第44697次没有被cancel取消
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第44702次没有被cancel取消
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第44706次没有被cancel取消
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第67967次没有被cancel取消
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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example3/TaskA.java

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package com.brianway.learning.java.multithread.timer.example3;
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import java.util.Date;
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import java.util.TimerTask;
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/**
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* Created by Brian on 2016/4/15.
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*/
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public class TaskA extends TimerTask{
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@Override
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public void run() {
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System.out.println("A run timer="+new Date());
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this.cancel();
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System.out.println("A任务自己移除自己");
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example3/TaskA2.java

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package com.brianway.learning.java.multithread.timer.example3;
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import java.util.Date;
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import java.util.TimerTask;
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/**
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* Created by Brian on 2016/4/15.
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*/
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public class TaskA2 extends TimerTask{
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@Override
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public void run() {
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System.out.println("A run timer="+new Date());
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example3/TaskB.java

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package com.brianway.learning.java.multithread.timer.example3;
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import java.util.Date;
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import java.util.TimerTask;
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/**
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* Created by brian on 2016/4/15.
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*/
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public class TaskB extends TimerTask{
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@Override
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public void run() {
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System.out.println("B run timer="+new Date());
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example3/TaskB2.java

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package com.brianway.learning.java.multithread.timer.example3;
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import java.util.Date;
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import java.util.TimerTask;
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/**
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* Created by Brian on 2016/4/15.
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*/
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public class TaskB2 extends TimerTask{
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@Override
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public void run() {
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System.out.println("B run timer="+new Date());
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example4/Run4_schedule1.java

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package com.brianway.learning.java.multithread.timer.example4;
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/**
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* Created by brian on 2016/4/15.
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*/
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import java.util.Date;
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import java.util.Timer;
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import java.util.TimerTask;
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/**
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* P252
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* schedule(TimerTask task, long delay)方法
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*/
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public class Run4_schedule1 {
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static public class MyTask extends TimerTask{
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@Override
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public void run() {
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System.out.println("运行了！时间为："+new Date());
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}
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}
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public static void main(String[] args) {
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MyTask task = new MyTask();
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Timer timer = new Timer();
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System.out.println("当前时间："+new Date());
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timer.schedule(task,7000);
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}
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}
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/*
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输出：
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当前时间：Sat Apr 16 00:00:22 CST 2016
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运行了！时间为：Sat Apr 16 00:00:29 CST 2016
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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/timer/example4/Run4_schedule2.java

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package com.brianway.learning.java.multithread.timer.example4;
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/**
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* Created by brian on 2016/4/15.
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*/
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import java.util.Date;
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import java.util.Timer;
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import java.util.TimerTask;
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/**
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* P253
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* schedule(TimerTask task, long delay, long period)方法
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*/
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public class Run4_schedule2 {
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static public class MyTask extends TimerTask{
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@Override
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public void run() {
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System.out.println("运行了！时间为："+new Date());
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}
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}
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public static void main(String[] args) {
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MyTask task = new MyTask();
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Timer timer = new Timer();
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System.out.println("当前时间："+new Date());
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timer.schedule(task,2000,1000);
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}
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}
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/*
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输出：
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当前时间：Sat Apr 16 00:01:34 CST 2016
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运行了！时间为：Sat Apr 16 00:01:36 CST 2016
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运行了！时间为：Sat Apr 16 00:01:37 CST 2016
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运行了！时间为：Sat Apr 16 00:01:38 CST 2016
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运行了！时间为：Sat Apr 16 00:01:39 CST 2016
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*/

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