固定数量线程池（newFixedThreadPool）允许我们创建固定线程数量的线程池，如果任务数大于线程池中线程的数量，那么任务将等待，如下代码：

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打印?

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<span style="font-size:12px;">      ExecutorService threadPool = Executors.newFixedThreadPool(3);

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for(int i=1; i<=10; i++){

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final int taskId = i;

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threadPool.execute(new Runnable(){

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public void run() {

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for(int i=1; i<=10; i++){

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System.out.println(Thread.currentThread().getName() + " is looping of " + i + " the task is " + taskId);

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try {

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Thread.sleep(20);

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} catch (InterruptedException e) {

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// TODO Auto-generated catch block

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e.printStackTrace();

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}

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}

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}

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});

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}

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System.out.println("add  all of 10 task");

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threadPool.shutdown();

            这个线程池里面是怎么在创建线程，线程执行完了之后会销毁吗？希望越详细越好

固定数量线程池（newFixedThreadPool）允许我们创建固定线程数量的线程池，如果任务数大于线程池中线程的数量，那么任务将等待，如下代码：

[size=1em][backcolor=rgb(248, 248, 248) !important]查看源码[size=1em]
打印?

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<span style="font-size:12px;">      ExecutorService threadPool = Executors.newFixedThreadPool(3);

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for(int i=1; i<=10; i++){

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final int taskId = i;

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threadPool.execute(new Runnable(){

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public void run() {

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for(int i=1; i<=10; i++){

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System.out.println(Thread.currentThread().getName() + " is looping of " + i + " the task is " + taskId);

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try {

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Thread.sleep(20);

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} catch (InterruptedException e) {

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// TODO Auto-generated catch block

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e.printStackTrace();

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}

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}

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}

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});

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}

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System.out.println("add  all of 10 task");

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threadPool.shutdown();

            这个线程池里面是怎么在创建线程，线程执行完了之后会销毁吗？希望越详细越好