线程的创建

基本线程类：

Thread

　MyThread my = new MyThread();
　　my.start();

 //当前线程可转让cpu控制权，让别的就绪状态线程运行（切换）
 public static Thread.yield() 
 //暂停一段时间
 public static Thread.sleep()  
 //在一个线程中调用other.join(),将等待other执行完后才继续本线程。　　　　
 public join()
 //中断线程->
//终端只会影响到wait状态、sleep状态和join状态。被打断的线程会抛出InterruptedException。
//正常线程不会去检测  不受影响
 public interrupte()

Runnable

public class MyRunnable implements Runnable{
    @Override
    public void run() {
            System.out.println("my runnable  running !");
    }
    public static void main(String[] args) {
        Runnable myRunable = new MyRunnable();
        Thread myThread = new Thread(myRunable);
        myThread.start();        
    }
}

Callable ，  Future

　　FutureTask  实现了 future接口和runnable接口

public class MyCallable implements Callable<Integer>{
    @Override
    public Integer call() throws Exception {
        Integer i = new Random().nextInt();
        return i;
    }
    public static void main(String[] args) {
        //创建 callable
        MyCallable myCallable = new MyCallable();
        //可以接收 callable  的返回值   判断线程终止
        FutureTask<Integer> future = new FutureTask(myCallable);
        //开启线程
        new Thread(future).start();        
    }
}