多线程常用操作方法

public class Test extends Object {
    public static void main(String[] args) throws Exception {
        /*
        命名操作:
        在线程启动前命名,尽量不重名,线程运行时不改名
        1. public Thread(Runnable target, String name)
        2. public final String getName()
        3. public final synchronized void setName(String name)
        4. public static native Thread currentThread()
         */
        Thread thread0 = new Thread(new MyThread(), "自己命名的线程0");
        Thread thread1 = new Thread(new MyThread());
        thread1.setName("自己命名的线程1");
        Thread thread2 = new Thread(new MyThread());
        Thread thread3 = new Thread(new MyThread());
        /*
        线程优先级 1-10
        public final static int MIN_PRIORITY = 1;
        public final static int NORM_PRIORITY = 5;
        public final static int MAX_PRIORITY = 10;
        优先级高,有可能先执行,不是一定
         */
        thread0.setPriority(10);
        thread1.setPriority(1);
        thread2.setPriority(1);
        thread3.setPriority(1);
        thread0.start();
        thread1.start();
        thread2.start();
        thread3.start();
        System.out.println(Thread.currentThread().getName());
        ;
    }
}
//线程操作类
class MyThread implements Runnable {
    @Override
    public void run() {
        /*
        线程的休眠操作
        public static native void sleep(long millis) throws InterruptedException;
         */
        for (int i = 0; i < 20; i++) {
            try {
                Thread.sleep(500);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println(Thread.currentThread().getName() + ",i=" + i);
        }
    }
}