Letter Count Write a program contained in a single file named "LetterCount.java" that first asks the user to enter an integer representing how many words he/she wants to type, and then uses a 'for' loop to have the user enter exactly that number of words. In your loop you should prompt the user to enter each word, using the word number in your prompt. After all of the words have been entered, tell the user the total number of letters used in all of the words. For example, if the user indicates that he/she wants to enter three words, and then types "cat", "alligator", and "pumpkin", then your program should report the number 19 to the user (since 3 + 9 + 7 = 19). You may assume that the user will initially enter a positive integer, and that each word entered by the user will consist only of letters. All of your output to the user must use complete sentences (e.g., "A total of 19 letters were used in your word list."). You may not use any arrays or global variables for this assignment. For this program you may, if you wish, put all of your code into the 'main' method. Advanced Option Instead of reporting the total number of letters used in the user's words, report how many different letters were used in all of the user's words. For example, if the user were to type two words, "computer" and "carrot", then you would tell the user that a total of nine different letters were used ("a", "c", "e", "m", "o", "p", "r", "t", "u"). You may use arrays for this advanced option, and you don't have to report to the user the actual letters used...only the number of unique letters.