Chapter 13, Problem 3PP

Program Plan Intro

   To lists all word sequences corresponding to any number

Program plan:

• In the file “PinWordEnumerator.java”, import necessary packages, and create a class “PinWordEnumerator”,
  • Create a LinkedList.
  • Define the method “main()”,
    • Create “Scanner” object.
    • Prompt the user to enter a phone number.
    • Get the phone number.
    • Call the method “enumerateWords()”.
  • Define the recursive method “enumerateWords()” that enumerates all the phone keypad encodings for a number.
  • Define the overloaded method “enumerateWords()”that recursively generates all possible 'words' that represent the telephone keypad encoding of a number.
  • Define the method “uploadDictionary()”to upload the dictionary file into a “LinkedList”.
  • Define the method “isVowelWord()”to determine whether the specified parameter is a one-letter word (A, I or O).