Bibliogrophy

package bibliogrophy;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;
//Nikki Forehand
public class Program {

	public static void main(String[] args) {
		//A special type of list that can hold Source objects
		ArrayList sources = new ArrayList();

		//Connect to the keyboard
		Scanner sc = new Scanner(System.in);

		//Some temporary variables
		String input, f, l, t, c, p;
		int y;

		do {
			//Read in details about a source...
			System.out.println("Enter source information:");
			System.out.print("\tBook title:  ");
			t = sc.nextLine();

			System.out.print("\tAuthor first name:  ");
			f = sc.nextLine();

			System.out.print("\tAuthor last name:  ");
			l = sc.nextLine();

			System.out.print("\tPublishing company:  ");
			p = sc.nextLine();

			System.out.print("\tPublisher city:  ");
			c = sc.nextLine();

			System.out.print("\tYear published:  ");
			y = Integer.parseInt(sc.nextLine());

			//Create an Source object based on the values entered
			Source s = new Source(l, f, t, c, p, y);

			//Add the new source our our list of sources
			sources.add(s);

			System.out.println("Enter another source (Y or N)?");
			input = sc.nextLine();

		}while(input.equalsIgnoreCase("Y"));

		//Put the list of sources in order based on author last name
		Collections.sort(sources);

		//Print out the list of sources
		for(int i=0; i<sources.size(); i++) {
			System.out.println(sources.get(i));
		}
	}
}

//Create a new class to hold bibliography sources.  It includes code that lets us sort it.
class Source implements Comparable<Source>{
	//Source information
	String authorLast;
	String authorFirst;
	String bookTitle;
	String publisherCity;
	String publisherName;
	int yearPublished;

	public Source(String last, String first, String title, String city, String publisher, int year) {
		authorLast = last;
		authorFirst = first;
		bookTitle = title;
		publisherCity = city;
		publisherName = publisher;
		yearPublished = year;
	}

	//Returns the author info in "Last, First" format.
	public String getAuthor() {
		return authorLast + ", " + authorFirst + ". " + bookTitle + ". " + publisherCity + ": " + publisherName + ". " + yearPublished + "." + "Print" ;
	}

	//Returns a text string representing this source.
	public String toString() {
		//Update this line to return (not print out) a String in MLA format.
		return authorLast + ", " + authorFirst + ". " + bookTitle + ". " + publisherCity + ": " + publisherName + ". " + yearPublished + "." + " Print" ;
	}

	//Specifies that sources are sorted by author.
	public int compareTo(Source s) {
		return getAuthor().compareTo(s.getAuthor());
	}
}