Ace Java 2025: Rock Your 'Thinking in Java' Challenge!

Question: 1 / 510

What interface do you implement for a class to fulfill a task but not return any value?

Callable

Executors

Runnable

The correct interface to implement for a class to execute a task but not return a value is the Runnable interface. Option A, Callable, is incorrect because it is used when a value needs to be returned. Option B, Executors, is incorrect because it is a class that provides static utility methods for executing tasks. Option D, Thread, is incorrect because it is a class rather than an interface.

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