Java如何获得运行线程的优先级？

在Java编程中，如何获得运行线程的优先级？

以下示例使用setPriority()方法打印正在运行的线程的优先级。

package com.yiibai;

public class GettingThreadPriority extends Thread { private int countDown = 5; private volatile double d = 0; public GettingThreadPriority(int priority) { setPriority(priority); start(); } public String toString() { return super.toString() + ": " + countDown; } public void run() { while (true) { for (int i = 1; i < 100000; i++) d = d + (Math.PI + Math.E) / (double) i; System.out.println(this); if (--countDown == 0) return; } } public static void main(String[] args) { new GettingThreadPriority(Thread.MAX_PRIORITY); for (int i = 0; i < 5; i++) { new GettingThreadPriority(Thread.MIN_PRIORITY); } } } 

Java

上述代码示例将产生以下结果 -

Thread[Thread-0,10,main]: 5
Thread[Thread-3,1,main]: 5
Thread[Thread-0,10,main]: 4
Thread[Thread-2,1,main]: 5
Thread[Thread-3,1,main]: 4
Thread[Thread-0,10,main]: 3
Thread[Thread-0,10,main]: 2
Thread[Thread-2,1,main]: 4
Thread[Thread-3,1,main]: 3
Thread[Thread-0,10,main]: 1
Thread[Thread-2,1,main]: 3
Thread[Thread-3,1,main]: 2
Thread[Thread-1,1,main]: 5
Thread[Thread-4,1,main]: 5
Thread[Thread-2,1,main]: 2
Thread[Thread-3,1,main]: 1
Thread[Thread-1,1,main]: 4
Thread[Thread-2,1,main]: 1
Thread[Thread-4,1,main]: 4
Thread[Thread-5,1,main]: 5
Thread[Thread-1,1,main]: 3
Thread[Thread-1,1,main]: 2
Thread[Thread-4,1,main]: 3
Thread[Thread-5,1,main]: 4
Thread[Thread-1,1,main]: 1
Thread[Thread-4,1,main]: 2
Thread[Thread-5,1,main]: 3
Thread[Thread-4,1,main]: 1
Thread[Thread-5,1,main]: 2
Thread[Thread-5,1,main]: 1