beginnerMultithreading Basics
What is the difference between Runnable and Callable interfaces in Java?
Runnable's run() method returns nothing and can't throw a checked exception; Callable's call() method returns a value of a generic type V and CAN throw a checked exception. Callable is submitted to an ExecutorService and returns a Future<V> that lets the caller retrieve the result (or exception) once the task completes.
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