Chapter 19, Problem 15PE

Program Plan Intro

Group the word by length

Program plan:

• Include the required header files
• Define the class “Word”
  • Define the main method
    • Declare the string variable with the file name as a value
    • In the “try” block, create an object and pass the filename as an argument.
      • Read all the words in the file
      • Iterate the loop until it reaches the end of the file
        • Add the word into the “wordList” variable
      • Get the strings from the file and group the words by length, and then find the total numbers of words of each length are in the file using “collect” and “Collectors.groupingBy” methods.
    • Display the result.