Show the user a list of the names (with integers before each name). Allow the user to select which friend is his/her best friend. Write in java and use test case as example result.

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Q: Show the user a list of the names (with integers before each name). Allow the user to select which…

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Methods of StringBuilder class

The StringBuilder class can be used to create mutable strings. The methods defined in the StringBuilder class are widely used to manipulate and concatenate strings. It is a non-synchronized class which has public methods that can be accessed by multiple threads. It is not thread-safe.