Chapter 3, Problem 40P

Program Plan Intro

Substitution Cipher

Program plan:

• Import the required java packages.
• Create the class SubstitutionCipher.
  • Create object “pac” for the class SubstitutionCipher1.
  • Declare the constructor.
  • Create the nested class SubstitutionCipher1.
    • Declare and initialize the string.
    • Declare one character array.
    • Declare the constructor.
  • Define the method encoding() to encode the given string.
  • Define the main() method,
    • Create the object for SubstitutionCipher class.
    • Gets the input string from the user using the scanner.
    • Pass the values for parameters using the object and call the constructor to perform the defined function.