CS1 Standard Demo Page

/*
*ThisprogramfeaturesanArrayListtodoitsreversecopythingfromonefiletoanother.
 */
package arraylistplay;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 *
 * @author dmaslows
 */
public class ReverseCopyLyrics {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws FileNotFoundException, IOException {
        String inputR = "R.text";
        String outputR = "RReversed.text";
        ArrayListwords = readWordsFromR(inputR);
        writeWordsToR(words, outputR);
    }

    private static ArrayList readWordsFromR(String inputR) throws FileNotFoundException {
// Equate a scanner with the input file
    Scanner scanner = establishScanner(inputR);
         // Read the words from the file into a dynamically growing ArrayList
         ArrayList words = new ArrayList<>();
         while(scanner.hasNext()){
             String word = scanner.next();
             words.add(word);
    }
          return words;
    }
    
    private static void writeWordsToR(ArrayList words, String outputR) throws FileNotFoundException {
   try (
           PrintWriter printer = getPrintWriter(outputR)) {

        for (int x = words.size() - 1; x>=0; x=x-1){
            printer.println(words.get(x));
        
    }
    }
    }

    private static Scanner establishScanner(String inputR) throws FileNotFoundException { 
        String fullR = createFullR(inputR);
        return new Scanner(new File(fullR));    
    }

    private static PrintWriter getPrintWriter(String outputR) throws FileNotFoundException {
        String fullR = createFullR(outputR);
        PrintWriter printer = new PrintWriter(fullR);
        return printer;
    }

       private static String createFullR(String R) {
    String separator = System.getProperty("file.separator");
    String home = System.getProperty("user.home");
    String path = home + separator + "CS1Files" + separator + "data" + separator;
          String fullR = path + R;
           return fullR;
       }
 }