1    /* 
2     * Program featuring straight up arrays and file IO to read and reverse copy a lyric. 
3     */
4    
5    package arrayplay;
6    
7    import java.io.File;
8    import java.io.FileNotFoundException;
9    import java.io.IOException;
10   import java.io.PrintWriter;
11   import java.util.Scanner;
12   
13   public class ReverseCopy {
14   
15       public static void main(String[] args) throws IOException {
16   
17           String inputFileName = "SweetDreams.txt";
18           String outputFileName = "SweetDreamsReversed.txt";
19           String[] words = readWordsFromFile(inputFileName);
20           writeWordsToFile(words,outputFileName);
21   
22       }
23   
24       private static final int LIMIT = 1000;
25   
26       private static String[] readWordsFromFile(String inputFileName) throws FileNotFoundException {
27   
28           Scanner scanner = establishedScanner(inputFileName);
29           String[] temp = new String[LIMIT];
30           int index = 0;
31           while (scanner.hasNext() ) {
32               String word = scanner.next();
33               temp[index] = word;
34               index = index + 1;
35           }
36   
37           int wordCount = index;
38           String[] words = new String[wordCount];
39           for (int x = 0; x < wordCount; x = x + 1 ) {
40               words[x] = temp[x];
41           }
42   
43           return words;
44   
45       }
46   
47       private static void writeWordsToFile(String[] words, String outputFileName) throws IOException {
48   
49           PrintWriter printer = getPrintWriter(outputFileName);
50           for (int x = words.length-1; x >= 0; x = x -1) {
51               printer.println(words[x]);
52           }
53   
54           printer.close();
55   
56       }
57   
58       private static Scanner establishedScanner(String inputFileName) throws FileNotFoundException {
59           String fullFileName = createFullFileName(inputFileName);
60           return new Scanner(new File(fullFileName));
61       }
62   
63       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
64           String fullFileName = createFullFileName(outputFileName);
65           PrintWriter printer = new PrintWriter(fullFileName);
66           return printer;
67       }
68   
69       private static String createFullFileName(String fileName) {
70   
71           String separator = System.getProperty("file.separator");
72           String home = System.getProperty("user.home");
73           String path = home + separator + "CS1Files" + separator + "data" + separator;
74           String fullFileName = path + fileName;
75           return fullFileName;
76   
77       }
78   
79   }
80