JAVA – codewindow.in

import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

public class CallableExample {

    public static void main(String[] args) throws Exception {

        // Create an ExecutorService with a fixed thread pool size of 1
        ExecutorService executor = Executors.newFixedThreadPool(1);

        // Create a Callable task
        Callable<String> callableTask = new Callable<String>() {
            public String call() throws Exception {
                // Perform some time-consuming task
                Thread.sleep(1000);
                // Return a result
                return "Task completed";
            }
        };

        // Submit the task to the ExecutorService and obtain a Future object
        Future<String> future = executor.submit(callableTask);

        // Wait for the task to complete and obtain the result
        String result = future.get();

        System.out.println(result);

        // Shutdown the ExecutorService
        executor.shutdown();
    }
}