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