ThreadLocalExample.java

public class ThreadLocalExample {

    public static class MyRunnable implements Runnable {
        private ThreadLocal<Integer> threadLocal =
               new ThreadLocal<Integer>();
        @Override
        public void run() {
            threadLocal.set( (int) (Math.random() * 100D) );
    
            try {
                Thread.sleep(2000);
            } catch (InterruptedException e) {
            }
    
            System.out.println(threadLocal.get());
        }
    }


    public static void main(String[] args) {
        MyRunnable sharedRunnableInstance = new MyRunnable();
        Thread thread1 = new Thread(sharedRunnableInstance);
        Thread thread2 = new Thread(sharedRunnableInstance);
        thread1.start();
        thread2.start();
        thread1.join(); //thread 1 tugashini kutish
        thread2.join(); //thread 2 tugashini kutish
    }
}