package biblioghraphy;


		import java.util.ArrayList;
		import java.util.Collections;
		import java.util.List;
		import java.util.Scanner;

		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;
			}

			//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 + ".";
			}

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

	}