Question: Choose 3 Character methods explain how they could be used in a program for input validation ( 1 - 3 sentences each ) . Input

Choose 3 Character methods
explain how they could be used in a program for input validation (1-3 sentences each).
Input validation is when we analyze user input and check if it is valid based on
predetermined rules.
Input validation could also modify input to follow a specific format (ex. Phone number
1234567890 being modified to (123)456-7890).

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