Java中读写锁的使用ReadwriteLock，多线程使用

Java中读写锁的使用ReadwriteLock，多线程使用

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

class tect1 {
   private int num = 99;
   //创建读写锁
   ReadWriteLock rwLock = new ReentrantReadWriteLock();
   //创建get方法，使用readlock
 
   public void get() {
	rwLock.readLock().lock();
	System.out.println(Thread.currentThread().getName()+":"+num);
	rwLock.readLock().unlock();
}
   //创建set方法，使用writelock
   public void set(int num) {
      this.num=num;
	rwLock.writeLock().lock();
	System.out.println(Thread.currentThread().getName()+":"+num);
	rwLock.writeLock().unlock();
}
	
}
public class readwrinterlock {
public static void main(String[] args) {
	//创建类的对象
	tect1 h1=new tect1();
	//创建10个线程来运行get方法
	for (int i = 0; i < 10; i++) {
	new Thread(new Runnable() {
		
		@Override
		public void run() {
			h1.get();
			
		}
	}, "A").start();
}
	//创建一个线程运行set方法
	
new Thread(new Runnable() {
		
		@Override
		public void run() {
			// TODO Auto-generated method stub
		h1.set(88838);	
		}
	},"B").start();
}
}
运行结果1：
A:99
A:99
A:99
A:99
A:99
A:99
A:99
A:99
A:99
A:99
B:88838