WordStatWords

import java.util.Scanner;
import java.util.*;
import java.io.*;

public class WordStatWords {
 public static void main(String[] args) throws Exception {
     Map <String, Integer> wordsAndCnt = new TreeMap<>();
     ArrayList <String> lines = new ArrayList<>();
     ArrayList <String> words = new ArrayList<>();
     try {
         BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(args[0]), "UTF-8"));
         String line;
         while ((line=reader.readLine()) != null) {
             lines.add(line);
         }
         reader.close();
        } catch (FileNotFoundException e){
            System.out.print("File does not exsist");
        }
     BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(args[1]), "UTF-8"));
     for (int i = 0; i < lines.size(); i++) {
     String line = lines.get(i);
     line = line.toLowerCase();
     line = line.replaceAll("[^\\p{L}\\p{Pd} ']", " ");
     String[] arrWords = line.split("\\s+");
        for (int j = 0; j < arrWords.length; j++) {
            if (arrWords[j]!= null && !arrWords[j].isEmpty()){
                words.add(arrWords[j]);
            }
        }
     }
     for (int i = 0; i < words.size(); i++) {
         if (wordsAndCnt.containsKey(words.get(i))) {
             int x = wordsAndCnt.get(words.get(i));
             wordsAndCnt.put(words.get(i), x+1);
             } else {
                 wordsAndCnt.put(words.get(i), 1);
             }
         }
     try {
        for (Map.Entry e : wordsAndCnt.entrySet()) {
            writer.write(e.getKey() + " " + e.getValue() + "\r\n");
        }
        writer.close();
        } catch (FileNotFoundException e) {
            System.out.print("File does not exsist");
        }
     }
}