ReverseCopy.java
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   
11       public static void main(String[] args) throws FileNotFoundException, IOException {
12   
13           String inputFileName = "starboy.text";
14           String outputFileName = "starboyReverse.text";
15           String[] words = readWordsFromFile(inputFileName);
16           writeWordstoFile(words,outputFileName);
17       }
18   
19       private static final int LIMIT = 1000;
20   
21       private static String[] readWordsFromFile(String inputFileName) throws FileNotFoundException {
22   
23           Scanner scanner = establishScanner(inputFileName);
24   
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   
34           String[] words = new String[wordCount];
35           for ( int x = 0; x < wordCount; x = x + 1 ) {
36               words[x] = temp[x];
37           }
38   
39           return words;
40       }
41   
42       private static void writeWordstoFile(String[] words, String outputFileName) throws IOException {
43   
44           PrintWriter printer = getPrintWriter(outputFileName);
45   
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       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
58           String fullFileName = createFullFileName(outputFileName);
59           PrintWriter printer = new PrintWriter(fullFileName);
60           return printer;
61       }
62   
63   
64   
65       private static String createFullFileName(String fileName) {
66           String separator = System.getProperty("file.separator");
67           String home = System.getProperty("user.home");
68           String path = home + separator + "CS1Files" + separator + "data" + separator;
69           String fullFileName = path + fileName;
70           return fullFileName;
71       }
72   
73   }
74