lock绑定多个condition

A打印5次 B打印10次 C打印15次

import java.util.*;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class Main{
    public static void main(String[] args) {
         SharedResource sharedResource = new SharedResource();
            new Thread(()->{
                sharedResource.print5();
            },"A").start();
        new Thread(()->{
            sharedResource.print10();
        },"B").start();
        new Thread(()->{
            sharedResource.print15();
        },"C").start();
    }



}
class SharedResource{
    private int num=1;
    private Lock lock=new ReentrantLock();
    private Condition c1=  lock.newCondition();
    private Condition c2 = lock.newCondition();
    private Condition c3 = lock.newCondition();
    public void print5(){
        lock.lock();
        try{
            while(num!=1){
                c1.await();
            }
            for(int i=0;i<5;i++){
                System.out.println(Thread.currentThread().getName()+" "+i);
            }
            num=2;
            c2.signal();
        }catch (Exception e) {
            e.printStackTrace();
        }finally {
            lock.unlock();
        }
    }
    public void print10(){
        lock.lock();
        try{
            while(num!=2){
                c2.await();
            }
            for(int i=0;i<10;i++){
                System.out.println(Thread.currentThread().getName()+" "+i);
            }
            num=3;
            c3.signal();
        }catch (Exception e) {
            e.printStackTrace();
        }finally {
            lock.unlock();
        }
    }
    public void print15(){
        lock.lock();
        try{
            while(num!=3){
                c3.await();
            }
            for(int i=0;i<15;i++){
                System.out.println(Thread.currentThread().getName()+" "+i);
            }
            num=1;
            c1.signal();
        }catch (Exception e) {
            e.printStackTrace();
        }finally {
            lock.unlock();
        }
    }
}

最后的效果是 A打印5次 B打印10次 C打印15次