1    package arrayPlay;
2    
3    import java.io.File;
4    import java.io.FileNotFoundException;
5    import java.io.IOException;
6    import java.io.PrintWriter;
7    import java.util.Scanner;
8    
9    public class ReverseCopy {
10       public static void main (String[] args) throws FileNotFoundException, IOException {
11           String inputFileName = "YouAreTheReason.text";
12           String outputFileName = "YouAreTheReasonReversed.text";
13           String[] words = readWordFromFile (inputFileName);
14           writeWordsToFile(words,outputFileName);
15       }
16   
17       private static final int LIMIT = 1000;
18   
19       private static void writeWordsToFile(String[] words, String outputFileName) throws FileNotFoundException {
20           // Equate a printer with an output file
21           PrintWriter printer = getPrintWriter(outputFileName);
22           // Print the words to the file
23           for ( int x = words.length-1; x>= 0; x = x-1) {
24               printer.println(words[x]);
25           }
26           printer.close();
27       }
28   
29       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
30           String fullFileName = createFullFileName(outputFileName);
31           PrintWriter printer = new PrintWriter(fullFileName);
32           return printer;
33       }
34   
35       private static String[] readWordFromFile(String inputFileName) throws FileNotFoundException {
36           // Equate a scanner the input file
37           Scanner scanner = establishScanner (inputFileName);
38           // Red the words from the file into an oversized array
39           String[] temp = new String[LIMIT];
40           int index = 0;
41           while ( scanner.hasNext() ) {
42               String word = scanner.next();
43               temp[index] = word;
44               index = index + 1;
45           }
46           int wordCount = index;
47           //Transfer the words to a perfectly sized array
48           String[] words = new String[wordCount];
49           for ( int x = 0; x<wordCount; x++){
50               words[x] = temp [x];
51           }
52           //return the words
53           return words;
54       }
55   
56       private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
57           String fullFileName = createFullFileName (inputFileName);
58           return new Scanner(new File(fullFileName));
59       }
60   
61       // Create the full file name for a simple file name, assuming that it will be
62       // found in the SC1Files/data subdirectory of the user's home directory.
63       private static String createFullFileName(String fileName) {
64           String separator = System.getProperty("file.separator");
65           String home = System.getProperty("user.home");
66           String path = home + separator +"CS1Files" + separator + "data" + separator;
67           String fullFileName = path + fileName;
68           return fullFileName;
69       }
70   }
71