Customized communication between threads (reentrantlock)

Start three threads

*AA Print 5 Time ,BB Print 10 Time ,CC Print 15 Time         Conduct 10 round

package juc.two;

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

// First step   Create a resource class 
class ShareResource {
    // Define flag bit 
    private int flag = 1;   // 1 AA     2 BB        3 CC
    // establish Lock lock 
    private Lock lock = new ReentrantLock();

    // Create three condition
    private Condition c1 = lock.newCondition();
    private Condition c2 = lock.newCondition();
    private Condition c3 = lock.newCondition();

    // Print 5 Time , Parameter round number 
    public void print5(int loop) throws InterruptedException {
        // locked 
        lock.lock();
        try {
            // Judge 
            while (flag != 1){
                // wait for 
                c1.await();
            }
            // work 
            for (int i = 1; i <=5;i++){
                System.out.println(Thread.currentThread().getName()+" :: "+i+" : Number of rounds :"+loop);
            }
            // notice 
            flag = 2;// Modify flag bit  2
            c2.signal();// notice BB Threads 
        }finally {
            // Release the lock 
            lock.unlock();
        }
    }

    // Print 10 Parameter round number 
    public void print10(int loop) throws InterruptedException {
        lock.lock();
        try {
            while (flag != 2){
                c2.await();
            }
            for (int i = 1; i <=10;i++){
                System.out.println(Thread.currentThread().getName()+" :: "+i+" : Number of rounds :"+loop);
            }
            // Modify flag bit 
            flag = 3;
            // notice CC Threads 
            c3.signal();
        }finally {
            lock.unlock();
        }
    }

    // Print 15 Parameter round number 
    public void print15(int loop) throws InterruptedException {
        lock.lock();
        try {
            while (flag != 3){
                c3.await();
            }
            for (int i = 1; i <=15;i++){
                System.out.println(Thread.currentThread().getName()+" :: "+i+" : Number of rounds :"+loop);
            }
            // Modify flag bit 
            flag = 1;
            // notice AA Threads 
            c1.signal();
        }finally {
            lock.unlock();
        }
    }
}

public class ThreadDemo3 {
    public static void main(String[] args) {
        ShareResource shareResource = new ShareResource();
        new Thread(()->{
            for(int i = 1;i <=10; i++){
                try {
                    shareResource.print5(i);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        },"AA").start();

        new Thread(()->{
            for(int i = 1;i <=10; i++){
                try {
                    shareResource.print10(i);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        },"BB").start();

        new Thread(()->{
            for(int i = 1;i <=10; i++){
                try {
                    shareResource.print15(i);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        },"CC").start();
    }
}