1 /*
 2  * Program featuring straight up arrays and file IO to read and reverse copy a lyric
 3  */
 4 package arraylistplay;
 5 
 6 import java.io.File;
 7 import java.io.FileNotFoundException;
 8 import java.io.IOException;
 9 import java.io.PrintWriter;
10 import java.util.ArrayList;
11 import java.util.Scanner;
12 
13 /**
14  *
15  * @author mbilodea
16  */
17 public class ReverseCopy {
18 
19     /**
20      * @param args the command line arguments
21      * @throws java.io.FileNotFoundException
22      */
23     public static void main(String[] args) throws FileNotFoundException, IOException {
24         String inputFileName = "Prey.text";
25         String outputFileName = "PreyReversed.text";
26         ArrayList<String> words = readWordsFromFile(inputFileName);
27         writeWordsToFile(words,outputFileName);
28     }
29     
30     private static ArrayList<String> readWordsFromFile(String inputFileName) throws FileNotFoundException {
31         // Equate a scanner with the input file
32         Scanner scanner = establishScanner(inputFileName);
33         // Read the words from the file into an oversized array]
34         ArrayList<String> words = new ArrayList<>();
35         while ( scanner.hasNext() ) {
36             String word = scanner.next();
37             words.add(word);
38         }
39         // Return the words
40         return words;
41     }
42     
43     private static void writeWordsToFile(ArrayList<String> words, String outputFileName) throws IOException {
44         // Equate a printer with an output file
45         PrintWriter printer = getPrintWriter(outputFileName);
46         // Print the words to the file
47         for ( int x = words.size() - 1; x >= 0; x = x - 1 ) {
48             printer.println(words.get(x));
49         }
50         printer.close();
51     }
52     
53     private static Scanner establishScanner(String inputFileName) throws FileNotFoundException {
54         String fullFileName = createFullFileName(inputFileName);
55         return new Scanner(new File(fullFileName));
56     }
57     
58     private static PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
59         String fullFileName = createFullFileName(outputFileName);
60         PrintWriter printer = new PrintWriter(fullFileName);
61         return printer;
62     }
63     
64     // Create the full file name for a simple file name, assuming that it will be
65     // found in CS1Files/data subdirectory of the user's home directory.
66     private static String createFullFileName(String Lyrics) {
67         String separator = System.getProperty("file.separator");
68         String home = System.getProperty("user.home");
69         String path = home + separator + "CS1Files" + separator + "data" + separator;
70         String fullFileName = path + Lyrics;
71         return fullFileName;
72     }
73 }
74 
75