Runnable vs Callable in Java 🔥 | Future, execute() & submit() | Interview Questions

Description: In this video, we cover some of the most commonly asked Java Concurrency interview questions around Runnable, Callable, ExecutorService and Future.

We’ll understand:

* What is Runnable?
* What is Callable?
* Runnable vs Callable
* execute() vs submit()
* Can submit() accept both Runnable and Callable?
* Why does submit() return a Future?
* What is Future?
* How does Future.get() work?
* Why is Future.get() blocking?
* Why was CompletableFuture introduced?
* Future vs CompletableFuture

I’ve explained these concepts from an interview perspective, so you can understand the concept and also frame your answer when asked in a Java backend interview.

This video is a continuation of Java Concurrency concepts including ExecutorService and CompletableFuture.

If you're preparing for Java / Spring Boot backend interviews, this is an important set of concepts to know.

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#Java #JavaInterview #JavaConcurrency #ExecutorService #Callable #Runnable #Future #CompletableFuture #BackendDevelopment


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