Callable and Future sample

Test.java

import java.util.concurrent.*;

public class FutureAndCallableExample {
    public static void main(String[] args) throws InterruptedException, ExecutionException {
        System.out.println("Main : " + Thread.currentThread().getName());

        ExecutorService executorService = Executors.newSingleThreadExecutor();

        Callable<String> callable = () -> {
            System.out.println("Entered Callable");
            System.out.println("Callable : " + Thread.currentThread().getName());
            Thread.sleep(2000);
//            if (true) {
//                throw new RuntimeException("EEEEEE");
//            }
            System.out.println("After sleep");
            return "returned result";
        };

        Future<String> future = executorService.submit(callable);

        System.out.println("Future get");
        System.out.println(future.get());

        executorService.shutdown();

        System.out.println("Main out");
    }
}