1    package arraylistplay;
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.ArrayList;
8    import java.util.Scanner;
9    
10   public class Smithereens {
11       public static void main(String[] args) throws FileNotFoundException, IOException {
12           String inputFileName = "Smithereens.text";
13           String outputFileName = "SmithereensReversed";
14           ArrayList<String> words = readWordsFromfile(inputFileName);
15           writeWordsToFile(words,outputFileName);
16       }
17   
18       private static ArrayList<String> readWordsFromfile(String inputFileName) throws FileNotFoundException  {
19           Scanner scanner = establishScanner(inputFileName);
20           ArrayList<String> words = new ArrayList<>();
21           while (scanner.hasNext()) {
22               String word = scanner.next();
23               words.add(word);
24           }
25           return words;
26       }
27   
28   
29       private static void writeWordsToFile(ArrayList<String> words, String outputFileName) throws IOException {
30           PrintWriter printer = getPrintWriter(outputFileName);
31           for (int x = words.size()-1; x>= 0; x = x-1) {
32               printer.println(words.get(x));
33           }
34           printer.close();
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 PrintWriter getPrintWriter(String outputFileName) throws FileNotFoundException {
43           String fullFileName = createFullFileName(outputFileName);
44           PrintWriter printer = new PrintWriter(fullFileName);
45           return printer;
46       }
47       private static String createFullFileName(String fileName) {
48           String separator = System.getProperty("file.separator");
49           String home = System.getProperty("user.home");
50           String path = home + separator + "CS1Files" + separator + "data" + separator;
51           String fullFileName = path + fileName;
52           return fullFileName;
53       }
54   
55   
56   
57   
58   
59   
60   
61   
62   }
63