Problem:

Question: Create a class called CharacterArray. The scanner class is not required Write a program which will accept an alpha numeric string at the keyboard. Store the string, of any length, into a character array, for example: George Mason University 4400 University Dr, Fairfax, VA 22030. For each visible character: Display the original character Determine and display whether the character is a digit or a letter If the character is a lower case letter, redisplay the character in upper case If the character is a upper case letter, redisplay the character in lower case If the character is a digit, display it as an * (asterisk)

Write the code step by step and explain it.