package demo.reorder;

import java.util.concurrent.ExecutorService;

import java.util.concurrent.Executors;

public class SynchronizedDemo {

    private static volatile int i = 0;

    private static volatile int j = 0;

    public static void main(String[] args) {

        Runnable thread1  = new Runnable() {

            @Override

            public void run() {

                while(true)

                selfPlus();

            }

        };

        Runnable thread2 = new Runnable() {

            @Override

            public void run() {

                while(true)

                print();

            }

        };

        ExecutorService pool = Executors.newFixedThreadPool(2);

        pool.execute(thread1);

        pool.execute(thread2);

        pool.shutdown();

    }

    public static synchronized void selfPlus() {

//        if(i != j)

//        System.out.println("selfPlus: i= "+i+" ; j= "+j);

        i++;

        j++;

//        if(i != j)

//        System.out.println("selfPlus: i= "+i+" ; j= "+j);

    }

    public static void print(){

        if(i < j)

        System.out.println("i= "+i+" ; j= "+j);

    }

}