Java 实例 – 线程优先级设置

以下实例演示了如何通过setPriority() 方法来设置线程的优先级：

public class SimplePriorities extends Thread {
   private int countDown = 5;
   private volatile double d = 0; 
   public SimplePriorities(int priority) {
      setPriority(priority);
      start();
   }
   public String toString() {
      return super.toString() + ": " + countDown;
   }
   public void run() {
      while(true) {
         for(int i = 1; i

以上代码运行输出结果为：

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