设置优先级

在Java多线程中，可以通过对线程设置优先级的方法，来调节线程被优先执行的概率。

package cn.edu.Lab;class MyThread extends Thread {public MyThread(String s) {this.setName(s);}public void run() {for(int i = 0; i < 6; i++) {System.out.println("Here is " + getName());}}
}public class Day1 {public static void main(String[] args) {MyThread t1 = new MyThread("Johnny");MyThread t2 = new MyThread("Johnson");t1.setPriority(10);t2.setPriority(1);t1.start();t2.start();}
}

守护线程

守护线程，即为其他线程服务的线程；当其他线程运行结束后，守护线程也会随之结束。

package cn.edu.Lab;class MyThread extends Thread {public MyThread(String s) {this.setName(s);}public void run() {for(int i = 0; i < 6; i++) {System.out.println("Here is " + getName());}}
}public class Day1 {public static void main(String[] args) {MyThread t1 = new MyThread("Johnny");MyThread t2 = new MyThread("Johnson");t2.setDaemon(true);t1.start();t2.start();}
}

出让线程

顾名思义，就是让当前执行的线程出让CPU

class MyThread extends Thread {public MyThread(String s) {this.setName(s);}public void run() {for(int i = 0; i < 6; i++) {System.out.println("Here is " + getName());Tread.yield();}}
}