Java 学习————线程直接通信

class Water{
	//水塘类	
	static Object water=new Object();
	static int total=6;  //假设水塘总共可以含水量为6
	static int mqsl=3;   //假设水塘中拥有含水量为3
	static int ps=0;     //假设水塘目前含水量为0
}

class ThreadA extends Thread{
	//排水类
	void pswork(){
		
		synchronized(Water.water){
			
			System.out.println("水塘中是否没有水： "+isEmpty());
			if(isEmpty()){
				
				try{
					
					Water.water.wait();
				}
				catch(InterruptedException e){
					
					e.printStackTrace();
				}
			}
			else{
				
				Water.ps++;
				System.out.println("水塘目前排水水量 "+Water.ps);
			}
		}
	}
	
	public void run(){
		
		while(Water.mqsl<Water.total){
			
			if(isEmpty())
				System.out.println("水塘目前没有水，排水线程被挂起");
			System.out.println("排水工作开始");
			pswork();
			
			try{
				
				sleep(1000);
			}
			catch(InterruptedException e){
				
				e.printStackTrace();
			}
		}
	}
	
	public boolean isEmpty(){
		
		return 	Water.mqsl==Water.ps?true:false;
	}
}

class ThreadB extends Thread{
	//进水类
	void jswork()
	{
		
		synchronized(Water.water){
			
			Water.mqsl++;
			Water.water.notify();
			System.out.println("水塘目前进水量为 "+Water.mqsl);
		}
	}
	
	public void run(){
		
		while(Water.mqsl<Water.total){
			
			System.out.println("进水工作开始");
			jswork();
			try{
				
				sleep(3000);
			}
			catch(InterruptedException e){
				
				e.printStackTrace();
			}
		}
	}
}

public class Tongxin {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		ThreadA threadA=new ThreadA();
		ThreadB threadB=new ThreadB();
		
		threadB.start();
		threadA.start();
	}

}

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