线程condition（二）控制线程通知

package com.ygl;



 public class CommunicationRunnable2 implements Runnable{

private Business business;

public CommunicationRunnable2() {


}

public CommunicationRunnable2(Business business) {

this.business=business;

}

@Override

public void run() {

for(int i=1;i<=50;i++){

business.sub2(i);
 

}


}   
}
//************************************************************
package com.ygl;
 public class CommunicationRunnable3 implements Runnable{
private Business business;
public CommunicationRunnable3() {

}
public CommunicationRunnable3(Business business) {
this.business=business;
}
@Override
public void run() {
for(int i=1;i<=50;i++){
business.sub3(i); 
}

} 
 }//**********************************************
package com.ygl;
 import java.util.concurrent.locks.Condition;
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReentrantLock;
 public class Business {
Lock lock=new ReentrantLock();
Condition   condition1  =lock.newCondition();
Condition   condition2  =lock.newCondition();
Condition   condition3  =lock.newCondition();
private int isShouldSub=1;
//主线程、子线程关联的代码归为一类
   public   void  sub2(int i){
 lock.lock();
 try{
 while(isShouldSub!=2){
 try{
 condition2.await(); 
 }catch(Exception e){
 
 }
 }
 for(int j=0;j<10;j++){
System.out.println("sub2 thread"+i+"========"+j); 
 }
 isShouldSub=3;
 condition3.signal();
 }finally{
 lock.unlock();
 }

   }
//主线程、子线程关联的代码归为一类
   public   void  sub3(int i){
 lock.lock();
 try{
 while(isShouldSub!=3){
 try{
 condition3.await(); 
 }catch(Exception e){
 
 }
 }
 for(int j=0;j<20;j++){
System.out.println("sub3 thread"+i+"========"+j); 
 }
 isShouldSub=1;
 condition1.signal();
 }finally{
 lock.unlock();
 }

   }
   public   void  main(int i){
 lock.lock();
 try{
  while(isShouldSub!=1){
  try{
  condition1.await();
  }catch(Exception  e){
  
  }
  }
 for(int j=0;j<100;j++){
System.out.println("main thread"+i+"========"+j); 
 }
 isShouldSub=2;
 condition2.signal();
 }finally{
lock.unlock();
 }
 }
 
 }//****************************************
package com.ygl;


 public class TraditionalThreadCommunication {

public static void main(String[] args) {
Business   business=new Business(); 
CommunicationRunnable2 communicationRunnable2=new CommunicationRunnable2(business);
Thread thread2=new Thread(communicationRunnable2);
CommunicationRunnable3 communicationRunnable3=new CommunicationRunnable3(business);
Thread thread3=new Thread(communicationRunnable3);
thread2.start();
thread3.start();
for(int i=1;i<=50;i++){
business.main(i);

}
}
 }