ReverseCopy.java
1    package Arrayplay;
2    // program to copy song lyrics in reverse
3    
4    import javax.swing.*;
5    import java.io.File;
6    import java.io.FileNotFoundException;
7    import java.io.IOException;
8    import java.io.PrintWriter;
9    import java.util.Scanner;
10   
11   public class ReverseCopy {
12       public static void main(String[] args) throws FileNotFoundException, IOException {
13           String inputFileName = "SongLyrics";
14           String outputFileName = "SongLyricsReversed";
15           String[] words = readWordsFromFile(inputFileName);
16           writeWordsToFile(words,outputFileName);
17       }
18       private static final int LIMIT = 1000;
19   
20       private static String[] readWordsFromFile(String inputFileName) throws FileNotFoundException {
21           Scanner scanner = establishScanner(inputFileName);
22           String[] temp = new String[LIMIT];
23           int index = 0;
24           while (scanner.hasNext() ) {
25               String word = scanner.next();
26               temp[index] = word;
27               index = index + 1;
28           }
29           int wordCount = index;
30           String[] words = new String[wordCount];
31           for ( int x = 0; x < wordCount; x = x + 1 ) {
32               words[x] = temp[x];
33           }
34           return words;
35       }
36   
37       private static void writeWordsToFile(String[] words, String outputFileName) throws IOException {
38           PrintWriter printer = getPrintWriter(outputFileName);
39           for ( int x = words.length - 1; x >= 0; x = x - 1) {
40               printer.println(words[x]);
41           }
42           printer.close();
43       }
44   
45       private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
46           String fullFileName = createFullFileName(inputFileName);
47           return new Scanner(new File(fullFileName));
48   
49       }
50   
51       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
52           String fullFileName = createFullFileName(outputFileName);
53           PrintWriter printer = new PrintWriter(fullFileName);
54           return printer;
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 fullFileName = path + fileName;
61           return fullFileName;
62   
63       }
64   }
65