We are doing the first step of Natural Language Processing which is data cleaning and tokenization. 1. Write a program that reads all text files from a folder and writes the following information in another file named out.txt: 1st Line of out.txt-> Sources :file1.txtotalUniqueWordsfile2.txtotalUniqueWords. .. 2nd line and onward-> Each word and its count from all files in alphabetical order Eg: Hello: 150 Process: 100 Hint: 1. Write a program that gets the job done for just one text file initially 2. Loop over all files of a directory and use the code from 1 3. Use HashMapeString, Integer> to count the occurences of each word. 1. HashMap counts-new HashMap) For eachWord in tokens: If (isnotalpha(eachword) continue; If counts.hasKey(eachWord) Int c = counts.get(eachWord) counts.put(eachWord,c+1) Else: counts.put(eachWord, 1)