• JDk5.0起提供了線程池相關的API：ExecutorService和Executors
• ExectorService：真正的線程池接口。常見的子類ThreadPoolExecutor
  • void execute(Runnable command):執行任務/命令，沒有返回值，一般用來執行Runnable
  • Futuresubmit(Callabletask):執行任務，有返回值，一般用來執行Callable
  • void shutdown():關閉線程池
• Executors：工具類，線程池的工具類，用于創并返回不同類型的線程池

package com.zeng.gaoji; //創建線程池import com.sun.prism.es2.ES2Graphics;import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors;public class TestPool {public static void main(String[] args) {//1.創建服務，創建線程池//newFixedThreadPool 參數為線程池的大小ExecutorService service = Executors.newFixedThreadPool(10);service.execute(new MyThread());service.execute(new MyThread());service.execute(new MyThread());service.execute(new MyThread());//關閉鏈接service.shutdown();} } class MyThread implements Runnable{@Overridepublic void run() {System.out.println(Thread.currentThread().getName());} } package com.zeng.gaoji;import java.util.concurrent.Callable; import java.util.concurrent.ExecutionException; import java.util.concurrent.FutureTask;//回顧總結線程的創建 public class ThreadNew {public static void main(String[] args) {new MyThread01().start();new Thread(new MyThread02()).start();FutureTask<Integer>futureTask=new FutureTask<Integer>(new MyThread03());new Thread(futureTask).start();try {Integer integer=futureTask.get();System.out.println(integer);} catch (InterruptedException e) {e.printStackTrace();} catch (ExecutionException e) {e.printStackTrace();}} } //1.繼承Thread類 class MyThread01 extends Thread{@Overridepublic void run() {System.out.println("MyThread01");} } //2、實現Runnable接口 class MyThread02 implements Runnable{@Overridepublic void run() {System.out.println("MyThread02");} }//3、實現Callable接口 class MyThread03 implements Callable<Integer> {@Overridepublic Integer call()throws Exception{System.out.println("MyThread03");return 100;} }

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