线程间通讯学习【二】

解决线程间通信的安全问题：同步锁的使用：

package com.zzl.thread;
/**
 * 线程间通讯
 * 所谓线程间通讯，即多个线程操作同一资源，但是操作的动作不同。
 * 
 */


class Resource{
	String name;
	String sex;
}
class InRunnable implements Runnable{
	private Resource r;
	public InRunnable(Resource r){
		this.r = r;
	}
	@Override
	public void run() {
		int x = 0;
		while(true){
			synchronized(r){
				if(x == 0){
					r.name = "mike";
					r.sex = "man";
				}else{
					r.name = "胖胖胖胖胖胖胖胖";
					r.sex = "女女女女女女";
				}
				x = (x+1)%2;
			}
		}
	}
	
}
class OutRunnable implements Runnable{
	private Resource r;
	public OutRunnable(Resource r){
		this.r = r;
	}
	@Override
	public void run() {
		while(true){
			synchronized(r){
				System.out.println(r.name+"    "+r.sex);
			}
		}
	}
	
}

public class ThreadCommunication {
	public static void main(String[] args) {
		Resource r = new Resource();
		
		InRunnable in = new InRunnable(r);
		OutRunnable out = new OutRunnable(r);
		
		Thread t1 = new Thread(in);
		Thread t2 = new Thread(out);
		
		t1.start();
		t2.start();
		
	}

}

添加同步锁后，问题解决：

胖胖胖胖胖胖胖胖    女女女女女女   
胖胖胖胖胖胖胖胖    女女女女女女   
胖胖胖胖胖胖胖胖    女女女女女女   
胖胖胖胖胖胖胖胖    女女女女女女   
胖胖胖胖胖胖胖胖    女女女女女女   
胖胖胖胖胖胖胖胖    女女女女女女   
胖胖胖胖胖胖胖胖    女女女女女女   
mike    man   
mike    man   
mike    man   
mike    man   
mike    man   
mike    man   
mike    man   
mike    man