线程的特殊方法

一、休眠线程

public static void sleep(long millis)

class MyThread2 extends Thread{@Overridepublic void run() {System.out.println("我是李刚，现在开始睡觉了...");try {Thread.sleep(5000);} catch (InterruptedException e) {e.printStackTrace();}System.out.println("我醒了，现在开始学习！！");}
}
public class ThreadDemo2 {public static void main(String[] args) {MyThread2 myThread2 = new MyThread2();myThread2.start();}
}

二、加入线程：

public final void join()

class MyThread3 extends Thread {@Overridepublic void run() {for (int i = 1; i <= 200; i++) {System.out.println(getName() + "-" + i);}}
}public class ThreadDemo3 {public static void main(String[] args) throws InterruptedException {MyThread3 t1 = new MyThread3();MyThread3 t2 = new MyThread3();MyThread3 t3 = new MyThread3();t1.start();t1.join();t2.start();t3.start();}
}

三、礼让：

public static void yield()

class MyThread4 extends Thread{@Overridepublic void run() {for(int i=1;i<=200;i++){System.out.println(getName()+"- "+i);Thread.yield();}}
}public class ThreadDemo4 {public static void main(String[] args) {MyThread4 t1 = new MyThread4();MyThread4 t2 = new MyThread4();t1.start();t2.start();}
}

四、后台线程：

public final void setDaemon(boolean on)

/*后台线程：public final void setDaemon(boolean on)用户线程：优先级高于守护线程守护线程【后台线程】：当一个程序没有了用户线程，守护线程也就没有了*/class MyThread5 extends Thread{@Overridepublic void run() {for(int i=1;i<=200;i++){System.out.println(getName()+"- "+i);}}
}public class ThreadDemo5 {public static void main(String[] args) {MyThread5 t1 = new MyThread5();MyThread5 t2 = new MyThread5();MyThread5 t3 = new MyThread5();t1.setName("刘备");t2.setName("关羽");t3.setName("张飞");//将t2和t3线程设置为守护线程t2.setDaemon(true);t3.setDaemon(true);t1.start();t2.start();t3.start();}
}

五、中断线程：

public final void stop()
public void interrupt()

/*中断线程：public final void stop()public void interrupt()java所有的线程要想变成运行状态，必须经过抢cpu执行权*/
class MyThread6 extends Thread{@Overridepublic void run() {System.out.println("胡海祥准备睡觉了....睡足10秒钟");try {Thread.sleep(10000);} catch (InterruptedException e) {e.printStackTrace();}System.out.println("睡醒了，继续敲代码！！！");}
}public class ThreadDemo6 {public static void main(String[] args) {MyThread6 t1 = new MyThread6();t1.start();try {Thread.sleep(5000);
//            t1.stop();t1.interrupt();} catch (InterruptedException e) {e.printStackTrace();}}
}