How can I implement a timeout in Java?

How can I implement a timeout in Java?

You can implement a timeout in Java using the ScheduledExecutorService or by using Thread.join() with a timeout.

Can you show me an example using ScheduledExecutorService?

Sure! Here's a simple example:

import java.util.concurrent.*;

public class TimeoutExample {
    public static void main(String[] args) {
        ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);
        Runnable task = () -> System.out.println("Task executed!");
        executor.schedule(task, 5, TimeUnit.SECONDS);
        executor.shutdown();
    }
}

What happens if the task takes longer than the timeout?

If the task takes longer than the scheduled time, it will still run to completion unless you explicitly handle cancellation.

How can I cancel a task if it exceeds the timeout?

You can use a Future object to cancel the task. Here's an example:

Future<?> future = executor.submit(task);
try {
    future.get(5, TimeUnit.SECONDS);
} catch (TimeoutException e) {
    future.cancel(true);
}