package arraylistplay;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Scanner;

public class ReverseCopy {
    public static void main(String[] args) throws FileNotFoundException, IOException {
                  String inputFileName = "YoungMA.text";
                  String outputFileName = "YoungMAReversed.text";
                  ArrayList<String> words = realWordsFromFile(inputFileName);
                  writeWordsToFile(words, outputFileName);
              }

              private static ArrayList<String> realWordsFromFile(String inputFileName) throws FileNotFoundException {
                  // Equate a scanner with the input file
                  Scanner scanner = establishScanner(inputFileName);
                  // Read words from the file into a dynamically growing ArrayList
                  ArrayList<String> words = new ArrayList<>();
                  while (scanner.hasNext()) {
                          String word = scanner.next();
                          words.add(word);
                      }
                  // return the words
                  return words;
              }

              private static void writeWordsToFile(ArrayList<String> words, String outputFileName) throws IOException {
                  // Equate a printer with an output file
                  PrintWriter printer = getPrintWriter(outputFileName);
                  // Print the words to the file
                  for (int x = words.size() - 1; x >= 0; x = x - 1) {
                          printer.println(words.get(x));
                      }
                  printer.close();
              }

              private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
                  String fullFileName = createFullFileName(inputFileName);
                  return new Scanner(new File(fullFileName));
              }

              private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
                  String fullFileName = createFullFileName(outputFileName);
                   PrintWriter printer = new PrintWriter(fullFileName);
                  return printer;
              }

              // Create the full file name for a simple file name, assuming that it will be
              // found in the CS1Files/ data subdirectory of the user's home directory.
              private static String createFullFileName(String fileName) {
                  String separator = System.getProperty("file.separator");
                  String home = System.getProperty("user.home");
                  String path = home + separator + "CS1Files" + separator + "data" + separator;
                  String fullFileName = path + fileName;
                  return fullFileName;
              }

          }