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