Java Interview Guide : 200+ Interview Questions and Answers - Thread states, priority, ExecutorService and Callable

The video tutorial explains the different states of a thread in Java, including new, runnable, running, blocked, and terminated states. It discusses how threads transition between these states and the role of thread priority in CPU allocation. The tutorial introduces the executor service, a modern way to manage thread execution, and highlights its features like future and callable, which allow for task completion checks and result returns.

What is the purpose of the executor service in Java?

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What is the significance of the future in the context of executor service?

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Describe how callable differs from runnable in Java threads.

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