1    package arraylistplay;
2    
3    import java.io.File;
4    import java.io.FileNotFoundException;
5    import java.io.IOException;
6    import java.io.PrintWriter;
7    import java.util.ArrayList;
8    import java.util.Scanner;
9    
10   public class ReverseCopy {
11   
12       public static void main(String[] args) throws FileNotFoundException, IOException {
13   
14           String inputFileName = "DesolationRow.txt";
15           String outputFileName = "DesolationRowReversed.txt";
16           ArrayList<String> words = readWordsFromFile(inputFileName);
17           writeWordsToFile(words, outputFileName);
18   
19       }
20   
21       private static ArrayList<String> readWordsFromFile(String inputFileName) throws FileNotFoundException {
22   
23           Scanner scanner = establishScanner(inputFileName);
24           ArrayList<String> words = new ArrayList<>();
25   
26           while (scanner.hasNext()) {
27               String word = scanner.next();
28               words.add(word);
29           }
30           return words;
31       }
32   
33       private static void writeWordsToFile(ArrayList<String> words, String outFileName) throws IOException {
34           PrintWriter printer = getPrintWriter(outFileName);
35           for (int x = words.size() - 1; x >= 0; x = x - 1) {
36               printer.println(words.get(x));
37           }
38           printer.close();
39       }
40   
41       private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
42   
43           String fullFileName = createFullFileName(inputFileName);
44           return new Scanner(new File(fullFileName));
45   
46       }
47   
48       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
49   
50           String fullFileName = createFullFileName(outputFileName);
51           PrintWriter printer = new PrintWriter(fullFileName);
52           return printer;
53   
54       }
55   
56       private static String createFullFileName(String fileName) {
57           String separator = System.getProperty("file.separator");
58           String home = System.getProperty("user.home");
59           String path = home + separator + "CS1Files" + separator + "data" + separator;
60           String fullFile = path + fileName;
61           return fullFile; 
62       }
63   
64   }
65