1    //program to read and reverse copy of the lyric
2    package arrayplay;
3    
4    import java.io.File;
5    import java.io.FileNotFoundException;
6    import java.io.IOException;
7    import java.io.PrintWriter;
8    import java.util.Scanner;
9    
10   public class ReverseCopy {
11       public static void main(String[] args) throws FileNotFoundException, IOException {
12           String inputFileName = "lyrics.txt";
13           String outputFileName = "lyricsReversed.txt";
14           String[] words = readWordsFromFile(inputFileName);
15           writeWordsToFile(words,outputFileName);
16       }
17   
18       private static final int LIMIT = 1000;
19   
20       private static String[] readWordsFromFile(String inputFileName) throws FileNotFoundException {
21           //Equate a scanner with the input file
22           Scanner scanner = establishScanner(inputFileName);
23           //read the word from the file into oversizes array
24           String[] temp = new String[LIMIT];
25           int index = 0;
26           while (scanner.hasNext()) {
27               String word = scanner.next();
28               temp[index] = word;
29               index = index + 1;
30           }
31           int wordCount = index;
32           //transfer the words to a perfectly sized array
33           String[] words = new String[wordCount];
34           for (int x = 0; x < wordCount; x = x + 1) {
35               words[x] = temp[x];
36   
37           }
38           //return the word
39           return words;
40       }
41   
42       private static void writeWordsToFile(String[] words, String outputFileName) throws IOException {
43           //Equate a printer with an output file
44           PrintWriter printer = getPrintWriter(outputFileName);
45           //print the word to the file
46           for (int x = words.length - 1; x >= 0; x = x - 1) {
47               printer.println(words[x]);
48           }
49           printer.close();
50       }
51   
52       private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
53           String fullFileName = createFullFileName(inputFileName);
54           return new Scanner(new File(fullFileName));
55       }
56   
57   
58       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
59           String fullFileName = createFullFileName(outputFileName);
60           PrintWriter printer = new PrintWriter(fullFileName);
61           return printer;
62       }
63   
64       //Create the full file name for a simple file name assuming that it willl be
65       //found in the CS1File/data subdirectory of the user's home directory
66       private static String createFullFileName(String fileName) {
67           String separator = System.getProperty("file.separator");
68           String home = System.getProperty("user.home");
69           String path = home + separator + "CS1Files" + separator + "data" + separator;
70           String fullFileName = path + fileName;
71           return fullFileName;
72       }
73   }
74   
75   
76