java_多线程_小总结

小总结

• //回顾总结线程的创建

import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;

//回顾总结线程的创建
public class ThreadNew {
	public static void main(String[] args) {
		new MyThread1().start();
		new Thread(new MyThread2()).start();
		
		//了解即可
		FutureTask<Integer> futureTask = new FutureTask<Integer>(new MyThread3());
		new Thread(futureTask).start();
		try {
			Integer integer=futureTask.get();
			System.out.println(integer);  			//100
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ExecutionException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

//1.继承Thread类
class MyThread1 extends Thread {
	@Override
	public void run() {
		System.out.println("MyThread1");
	}
}

//2.实现Runnable接口
class MyThread2 implements Runnable {
	@Override
	public void run() {
		System.out.println("MyThread2");
	}
}

//3.实现callable接口
class MyThread3 implements Callable<Integer> {
	@Override
	public Integer call() throws Exception {
		System.out.println("MyThread3");
		return 100;
	}
}