Should I Close a Scanner Linked to System.in in Java?

Question: How to Close a Scanner Linked to System.in Without Affecting System.in

Context:

In Java programming, the Scanner class is often used to read input from the standard input stream (System.in). While it's necessary to close resources after use for proper coding practices, closing the Scanner may inadvertently close System.in as well.

Solution:

The provided solution suggests that the most straightforward approach is to refrain from closing the Scanner if one desires to keep the underlying stream (System.in) open.

Explanation:

It's generally recommended to create a single Scanner instance that is utilized throughout the program. By adhering to this practice, there is no need to close the Scanner since it will remain open for the program's duration.

Additional Considerations:

The answer emphasizes that there is typically no compelling reason to close the Scanner in this scenario. Leaving it open allows for continued usage of System.in without interruption.

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