多线程同步 CyclicBarrier Semphore

public class SemphoreCountThread extends Thread{

    private Semaphore mSemaphore;
    private String mThreadName;

    public SemphoreCountThread(Semaphore semaphore, String name){
        this.mSemaphore = semaphore;
        this.mThreadName = name;
        this.start();
    }

    @Override
    public void run() {
        if(mSemaphore != null){
            try {
                mSemaphore.acquire();
                System.out.println(mThreadName + " is getAcquired");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        for(int i = 0;i < 5;i++){
            System.out.println(mThreadName+"is count"+ i);
            try {
                Thread.sleep(300);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        if(mSemaphore != null) {
            mSemaphore.release();
        }
    }

    public static void main(String[] args){
        Semaphore semaphore = new Semaphore(1);
        SemphoreCountThread countThread01 = new SemphoreCountThread(semaphore,"countThread01");
        SemphoreCountThread countThread02 = new SemphoreCountThread(semaphore,"countThread02");
    }
}

public class CyclicBarrierThread extends Thread{

    private CyclicBarrier mCyclierBarrier;
    private String mName;

    public CyclicBarrierThread(CyclicBarrier cyclicBarrier, String name){
        this.mCyclierBarrier = cyclicBarrier;
        this.mName = name;
        this.start();
    }

    @Override
    public void run() {
        System.out.println("---"+mName);
        try {
            mCyclierBarrier.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } catch (BrokenBarrierException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args){
        CyclicBarrier mCyclicBarrier = new CyclicBarrier(3, new Runnable() {
            public void run() {
                System.out.println("====end");
            }
        });
        new CyclicBarrierThread(mCyclicBarrier,"a");
        new CyclicBarrierThread(mCyclicBarrier,"b");
        new CyclicBarrierThread(mCyclicBarrier,"c");
    }
}