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           String inputFileName = "SeizeTheDay.text";
13           String outputFileName = "SeizeTheDayReverse.text";
14           String[] words = readWordsFromFile(inputFileName);
15           writeWordsToFile(words,outputFileName);
16       }
17   
18       private static final int LIMIT = 1000;
19   
20       private static String[] readWordsFromFile(String inputFileName) throws FileNotFoundException {
21           Scanner scanner = establishScanner(inputFileName);
22           String[] temp = new String[LIMIT];
23           int index = 0;
24           while(scanner.hasNext()) {
25               String word = scanner.next();
26               temp[index] = word;
27               index = index + 1;
28           }
29           int wordCount = index;
30           String[] words = new String[wordCount];
31           for ( int x = 0; x < wordCount; x = x + 1 ) {
32               words[x] = temp[x];
33           }
34           return words;
35       }
36   
37       private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
38           String fullFileName = createFullFileName(inputFileName);
39           return new Scanner(new File(fullFileName));
40       }
41   
42       private static String createFullFileName(String fileName) {
43           String separator = System.getProperty("file.separator");
44           String home = System.getProperty("user.home");
45           String path = home + separator + "CS1Files" + separator + "data" + separator;
46           String fullFileName = path + fileName;
47           return fullFileName;
48       }
49   
50       private static void writeWordsToFile(String[] words, String outputFileName) throws IOException {
51           PrintWriter printer = getPrinterWriter(outputFileName);
52           for ( int x = words.length-1; x >= 0; x = x - 1){
53               printer.println(words[x]);
54           }
55           printer.close();
56       }
57   
58       private static PrintWriter getPrinterWriter(String outputFileName) throws FileNotFoundException {
59           String fullFileName = createFullFileName(outputFileName);
60           PrintWriter printer = new PrintWriter(fullFileName);
61           return printer;
62       }
63   }
64