头歌作业-Java多线程

1.创建多线程

继承Thread重写run

package step1;

public class CreateThreadPractice {

    public static void main(String[] args) {
        MyThread myThread = new MyThread();
        // ---------------------Begin------------------------
        //开启线程
        myThread.start();

        // ---------------------End------------------------
    }
}
// ---------------------Begin------------------------
//继承Thread编写名为MyThead的类，代码内容为循环输出10遍: 线程在运行......

class MyThread extends Thread{
    public  void run()
    {
       for(int i=0;i<10;i++) System.out.println("线程在运行......");
    }
}


// ---------------------End------------------------

 2.使用Callable接口创建多线程

package step2;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;
// ---------------------Begin------------------------
//tips: 输出语句为：Thread.currentThread().getName()+"的call()方法在运行"
//定义一个实现Callable接口的实现类，类名必须命名为MyThread_callable

// ---------------------End------------------------
public class CallableExample {
    public static void main(String[] args) throws Exception,
            ExecutionException {
        // 创建Callable接口的实现类对象
        MyThread_callable myThread3 = new MyThread_callable();
        // 使用FutureTask封装Callable接口
        FutureTask