java设置优先级

java设置优先级

java线程的调度并不是通过设置优先级就可以搞定的。

public class ThreadDemo {
    public static void main(String[] args) {
        Runnable myRunnable = new MyThread(); // 创建一个Runnable实现类的对象
        Thread thread1 = new Thread(myRunnable, "A");
        Thread thread2 = new Thread(myRunnable, "B");
        Thread thread3 = new Thread(myRunnable, "C");
        thread1.setPriority(Thread.MIN_PRIORITY);
        thread2.setPriority(Thread.MIN_PRIORITY);
        thread3.setPriority(Thread.MAX_PRIORITY);
        thread1.start();
        thread2.start();
        thread3.start();
    }
}

class MyThread implements Runnable {
    @Override
    public void run() {
        for (int i = 0; i < 10; i++) {
            System.out.println(Thread.currentThread().getName());

        }
    }
}

虽然我们对线程的优先级进行了设置，但可以看见，线程的执行并没有按照优先级的顺序来执行

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