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 = "macmiller.text";
12           String outputFileName = "macmillerReversed.text";
13           String[] words = readWordsFromFile(inputFileName);
14           writeWordsToFile(words,outputFileName);
15       }
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 words from the file into an oversized array
24           String[] temp = new String[LIMIT];
25           int index = 0;
26   
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           }
39   
40   
41           return words;
42       }
43       private static void writeWordsToFile(String[] words, String outputFileName) throws IOException {
44   // Equate a printer with a output file
45           PrintWriter printer = getPrintWriter(outputFileName);
46           for (int x = words.length-1; x>= 0; x=x-1) {
47               printer.println(words[x]);
48           }
49   
50           printer.close();
51       }
52   
53       private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
54           String fullFileName = createFullFileName(inputFileName);
55           return new Scanner(new File(fullFileName));
56       }
57   
58       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
59   
60           String fullFileName = createFullFileName(outputFileName);
61           PrintWriter printer = new PrintWriter(fullFileName);
62           return printer;
63       }
64   
65   
66       private static String createFullFileName(String fileName) {
67   
68           String seperator = System.getProperty("file.separator");
69           String home = System.getProperty("user.home");
70           String path = home + seperator + "CS1Files" + seperator + "data" + seperator;
71           String fullFileName = path + fileName;
72           return fullFileName;
73       }
74   }
75