How do I make a method atomic with System.out.print in it

Question

I want to make the print method to do both system.out.print statements at the same time, i.e I want the console to print all the time:

Thread-0 playing:
Thread-0 stop playing
Thread-1 playing:
Thread-1 stop playing

instead of:

Thread-0 playing:
Thread-1 playing:
Thread-0 stop playing
Thread-1 stop playing



public class Program {

    static class Player implements Runnable{

        public void print(){
            synchronized (this){
                System.out.println(Thread.currentThread().getName() + " playing:           ");
                System.out.println(Thread.currentThread().getName() + " stop playing");
            }
        }
        @Override
        public void run() {


                try { Thread.sleep(50); } catch(InterruptedException e) { System.out.println(e); }
                print();
        }
    }
    public static void main(String[] args) {

        int numberOfPlayers = 2;
        for (int i = 1; i<=numberOfPlayers; i++ ) {
            Thread thread = new Thread(new Player());
            thread.start();
        }
    }
}