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 = "Accordion.text";
12           String outputFileName = "AccordionReversed.text";
13           String[] words = readWordsFromFile(inputFileName);
14           writeWordsToFile(words,outputFileName);
15   
16       }
17       private static final int LIMIT = 1000;
18   
19       private static String[] readWordsFromFile(String inputFileName) throws FileNotFoundException{
20           //Equate a scanner with input file
21           Scanner scanner = establishScanner(inputFileName);
22           //read words from file into an oversized array
23           String[] temp = new String[LIMIT];
24           int index = 0;
25           while ( scanner.hasNext() ) {
26               String word = scanner.next();
27               temp[index] = word;
28               index = index + 1;
29           }
30           int wordCount = index;
31           //transfer words to a perfect array
32           String[] words = new String[wordCount];
33           for ( int x = 0; x < wordCount; x = x+1) {
34               words[x] = temp[x];
35           }
36          // Return the words
37           return words;
38       }
39   
40       private static void writeWordsToFile(String [] words, String outputFileName) throws IOException {
41           // Equate a printer w/ an output file
42           PrintWriter printer = getPrintWriter(outputFileName);
43           //Print the words to get the file
44           for ( int x =words.length-1; x>= 0; x=x - 1){
45               printer.println(words[x]);
46           }
47           printer.close();
48       }
49       private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
50           String fullFileName = createFullFileName(inputFileName);
51           return new Scanner(new File(fullFileName));
52       }
53   
54       private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
55           String fullFileName = createFullFileName(outputFileName);
56           PrintWriter printer = new PrintWriter(fullFileName);
57           return printer;
58       }
59   
60       private static String createFullFileName(String filename) {
61           String separator = System.getProperty("file.separator");
62           String home = System.getProperty("user.home");
63           String path = home + separator +"CS1Files" + separator + "data" + separator;
64           String fullFileName = path + filename;
65           return fullFileName;
66   
67       }
68   
69       //create the full file name for a simple file, assuming it will be found in the cs1 directory
70   
71   
72   }
73