somethread3.java

来自「JAVA分布式程序学习的课件（全英文）」· Java 代码 · 共 29 行

class SomeThread3 implements Runnable {
   static int count=0;

   SomeThread3() {
      super();
   }
 
   public void run() {
      update();
   }

   static public synchronized void update( ){
      int myCount = count;

      int second = (int)(Math.random( ) * 500);
      try {
        Thread.sleep(second);
      }
      catch (InterruptedException e) {
      }

      myCount++;
      count = myCount;
      System.out.println("count="+count+
        "; thread count=" + Thread.activeCount( ));
   }
} //end class SomeThread3