public class Intrinsiclocks {

    public static int counter = 0;

    public static void increment() {
        int temp = counter;

        try {
            Thread.sleep(Math.round((Math.random() * 10)));
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        
        temp++;
        counter = temp;
    }




    public static void main(String[] args) {

        Thread T1 = new Thread(new Runnable() {
            @Override
            public void run() {
                for (int i = 0; i < 100; i++)
                    increment();
            }
        });

        Thread T2 = new Thread(new Runnable() {
            @Override
            public void run() {
                for (int i = 0; i < 100; i++)
                    increment();
            }
        });

        T1.start();
        T2.start();

        try {
            T1.join();
            T2.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("The counter is : " + counter);
    }


    
    /*

    public static int counter1 = 0;
    public static int counter2 = 0;

    public static synchronized void increment1() {
        counter1++;
    }

    public static synchronized void increment2() {
        counter2++;
    }

    public static void increment1() {
        int temp = counter1;
        try {
            Thread.sleep(Math.round((Math.random() * 10)));
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        temp++;
        counter1 = temp;

    }

    public static void increment2() {
        int temp = counter1;
        try {
            Thread.sleep(Math.round((Math.random() * 10)));
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        temp++;
        counter1 = temp;
    }
    */

}