Include required library files. Define a class named “Out_Range” and “Non_Digits”. Declare and define a function named “isAll_Digits()”. Declare the required variables. “for” loop to check the string contains only digits or not then return the Boolean result Initialize the constant value for maximum value. Define a “main()” function to test the histogram. “while” loop to handle the exception for the user giving inputs. Get the user input to print the result.

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Chapter 16, Problem 3PP

Program Plan Intro

Include required library files.

Define a class named “Out_Range” and “Non_Digits”.

Declare and define a function named “isAll_Digits()”.

Declare the required variables.

“for” loop to check the string contains only digits or not then return the Boolean result

Initialize the constant value for maximum value.

Define a “main()” function to test the histogram.

“while” loop to handle the exception for the user giving inputs.

Get the user input to print the result.

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