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       public static void main (String[] args) throws FileNotFoundException, IOException{
11           String inputFileName = "LaVieEnRose.text";
12           String outputFileName = "LaVieEnRoseReversed.text";
13           String[] words = readWordsFromFile(inputFileName);
14           writeWordsFromFile(words, outputFileName);
15       }
16   
17       private static final int LIMIT = 1000;
18   
19       private static String[] readWordsFromFile(String inputFileName) throws FileNotFoundException {
20           Scanner scanner = establishScanner(inputFileName);
21           String[] temp = new String[LIMIT];
22           int index = 0;
23           while (scanner.hasNext()){
24               String word = scanner.next();
25               temp[index] = word;
26               index = index + 1;
27           }
28           int wordCount = index;
29           String[] words = new String[wordCount];
30           for (int x = 0; x < wordCount; x= x + 1){
31               words[x] = temp[x];
32           }
33           return words;
34       }
35   
36       private static void writeWordsFromFile(String[] words, String outputFileName) throws IOException {
37           PrintWriter printer = getPrintWriter(outputFileName);
38           for ( int x = words.length-1; x >=0; x= x-1){
39               printer.println(words[x]);
40           }
41           printer.close();
42       }
43       private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
44           String fullFileName = createFullFileName(inputFileName);
45           return new Scanner(new File(fullFileName));
46       }
47   
48       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
49           String fullFileName = createFullFileName(outputFileName);
50           PrintWriter printer = new PrintWriter(fullFileName);
51           return printer;
52       }
53   
54       private static String createFullFileName(String fileName) {
55           String separator = System.getProperty("file.separator");
56           String home = System.getProperty("user.home");
57           String path = home + separator + "CS1Files" + separator + "data" + separator;
58           String fullFileName = path + fileName;
59           return fullFileName;
60       }
61   }
62