获得优先级的Java示例

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 < 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 SimplePriorities(Thread.MAX_PRIORITY);

      for(int i = 0; i < 5; i++)

      new SimplePriorities(Thread.MIN_PRIORITY);

   }

}