一个线程写入,100个线程读取

import java.util.concurrent.locks.ReentrantReadWriteLock;


class MyQueue
{
    private Object obj;
    private ReentrantReadWriteLock rwLock = new ReentrantReadWriteLock();

    public void writeObj(Object obj)
    {
        rwLock.writeLock().lock();
        try 
        {
            this.obj = obj;
            System.out.println(Thread.currentThread().getName()+"\t"+obj);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            rwLock.writeLock().unlock();
        }
    }
    
    public void readObj()
    {
        rwLock.readLock().lock();
        try 
        {
            System.out.println(Thread.currentThread().getName()+"\t"+obj);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            rwLock.readLock().unlock();
        }
    }	
}


public class ReadWriteLockDemo
{
    public static void main(String[] args) throws InterruptedException
    {
        MyQueue q = new MyQueue();
        
        new Thread(() -> {
            q.writeObj("ClassName1018");
        }, "writeThread").start();
        
        Thread.sleep(100);
        
        for (int i = 1; i <=100; i++) 
        {
            new Thread(() -> {
                q.readObj();
            },String.valueOf(i)).start();
        }
        
    }
}