How Can I Reliably Get Single Character Input Using a Java Scanner?

Methodologies to Acquire Single Character Input Using Scanner

Derived from the objective to gather a character input from the keyboard using Scanner, various approaches emerge.

Initially, the code employs Scanner.nextChar() to acquire a character, but this method is absent. Subsequently, converting the string to a character remains unreliable due to external method constraints.

Resolving the Input Acquisition Issue

To effectively obtain a character input, consider the following strategies:

1. Extract the First Character from 'Next':

   char c = reader.next().charAt(0);

2. Consume Exactly One Character:

   char c = reader.findInLine(".").charAt(0);

3. Enforce Consumption of a Single Character:

   char c = reader.next(".").charAt(0);

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