MagicDates.java

package com.levelup.java.exercises.beginner;

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.Scanner;

/**
 * This program is a solution to the magic date program.
 * 
 * @author Justin Musgrove
 * @see <a href='http://www.leveluplunch.com/java/exercises/magic-dates/'>Magic
 *      dates</a>
 */
public class MagicDates {

	public static void main(String[] args) {

		// Create a Scanner object for keyboard input.
		Scanner keyboard = new Scanner(System.in);

		// Ask user for input
		System.out.print("Enter date in mm/dd/yyyy format:");
		String dateAsString = keyboard.next();

		// close stream
		keyboard.close();

		// Parse string to date
		LocalDate date = LocalDate.parse(dateAsString,
				DateTimeFormatter.ofPattern("MM/dd/yyyy"));

		// check date and display output
		if (magicDate(date)) {
			System.out.println("That date is magic!");
		} else {
			System.out.println("Sorry, nothing magic about that date...");
		}
	}

	/**
	 * Method will check if a date is magic define by month * date = last two
	 * digets of year
	 * 
	 * @param date
	 * @return true if the date is magic
	 */
	public static boolean magicDate(LocalDate date) {

		int month = date.getMonth().getValue();
		int day = date.getDayOfMonth();
		int year = date.getYear();
		
		String yearAsString = String.valueOf(year);
		String lastTwoDigits = "0";
		if (yearAsString.length() == 4) {
			lastTwoDigits = yearAsString.substring(2);
		}

		return (month * day) == Integer.parseInt(lastTwoDigits);
	}

}