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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