public class YieldThread extends Thread{

    @Override

    public void run() {

        long beginTime = System.currentTimeMillis();

        int count = 0;

        for (int i = 0; i< 50000000; i++){

            //Thread.yield();

            count = count + (i + 1);

        }

        long endTime = System.currentTimeMillis();

        System.out.println("CostTime: " + (endTime - beginTime) + "ms");

    }

}

public class ThreadRunMain {

    public static void main(String[] args) {

        testYieldThread();

    }

    public static void testYieldThread(){

        YieldThread yt = new YieldThread();

        yt.start();

    }

}