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 = "Promises.text";
13           String outputFileName = "PromisesReversed.text";
14           String[] words = readWordsFromFile(inputFileName);
15           writeWordsToFile(words,outputFileName);
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       private static void writeWordsToFile(String[] words, String outputFileName) throws FileNotFoundException {
36           PrintWriter printer = getPrintWriter(outputFileName);
37           for (int x = words.length - 1; x >= 0; x = x - 1) {
38               printer.println(words[x]);
39           }
40           printer.close();
41       }
42       private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
43           String fullFileName = createFullFileName(inputFileName);
44           return new Scanner(new File(fullFileName));
45       }
46   
47       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
48           String fullFileName = createFullFileName(outputFileName);
49           PrintWriter printer = new PrintWriter(fullFileName);
50           return printer;
51       }
52   
53       private static String createFullFileName(String fileName) {
54           String separator = System.getProperty("file.separator");
55           String home = System.getProperty("user.home");
56           String path = home + separator + "desktop" + separator + "CS1Files" + separator + "data" + separator;
57           String fullFileName = path + fileName;
58           return fullFileName;
59       }
60   
61   }
62   
63