reads a text file and determines the frequency of the words

Sets and Maps. Part 1 Write an application that reads a text file and determines the frequency of the words that appear in the file. Your application should ignore punctuation, numbers, and it should ignore the case of the letters in a word. That is, the word "The" and "the" should be treated as the same word. Your application should save a list of the words and their frequencies in an output file. Part 2 The file "[login to view URL]" contains a list of English language words. Modify your code from part 1 so that you only count words that appear in the word list. I provided the some code you need to use like map and set interfaces and some files to test the code.