Can Closing a Java Scanner Linked to System.in Affect Subsequent Input?

Can We Close a Scanner Linked to System.in Without Affecting System.in?

In Java, creating a Scanner linked to System.in allows for user input from the console. However, the question arises: is it possible to close the Scanner without inadvertently closing System.in, which could potentially hinder further input?

According to experienced programmers, the most straightforward solution is to simply refrain from closing the Scanner if you do not intend to close System.in. This is because closing the Scanner would inherently close the underlying stream.

It is generally recommended to create a single Scanner instance that persists throughout the program's execution. If this approach is followed, the issue of closing the Scanner while maintaining System.in is circumvented. Furthermore, there may not be a compelling reason to close the Scanner in most scenarios.

The above is the detailed content of Can Closing a Java Scanner Linked to System.in Affect Subsequent Input?. For more information, please follow other related articles on the PHP Chinese website!