Develop an application that allow the user to guess a secret word. The application should save the list of words below and when run, choose one word at random as the secret word.
The list of word is: house, car, apple, college
Once the secret word is chosen, the application should output the length of the word to the user.
The application should then allow the user to guess the word one letter at a time.
The application should allow the user to have 6 guesses. After each guess, the application should output how many times the chosen letter appears in the word.
The application should accept input from the user in either uppercase or lowercase but it should not be case sensitive. i.e., 'a' is the same guess as 'A'.
The application should make use of instantiable classes.