public class UncaughtExceptionTest2 {
    public UncaughtExceptionTest2() {
        Thread.setDefaultUncaughtExceptionHandler(new UEHandler1());

        Thread thread1 = new Thread(new Task(), "task1");
        thread1.start();

        Thread thread2 = new Thread(new Task(), "task2");
        thread2.setUncaughtExceptionHandler(new UEHandler2());
        thread2.start();
    }

    class UEHandler1 implements Thread.UncaughtExceptionHandler {
        public void uncaughtException(Thread t, Throwable e) {
            System.out.print("UEHandler1 catches the Uncaught Exception!!!");
            System.out.println(" Thread: " + t);
            e.printStackTrace();
        }
    }

    class UEHandler2 implements Thread.UncaughtExceptionHandler {
        public void uncaughtException(Thread t, Throwable e) {
            System.out.println("UEHandler2 catches the Uncaught Exception!!!");
            System.out.println(" Thread: " + t);
            e.printStackTrace();
        }
    }

    class Task implements Runnable {
        private void foo() {
        }

        public void run() {
            try {
                Thread.sleep(1000L);
            } catch (InterruptedException ex) {}

            throw new RuntimeException();
        }
    }

    public static void main(String[] args) {
        new UncaughtExceptionTest2();
    }
}