import java.util.Scanner;

/*
 * Lab 6 Tutorial 2
 *
 * Description: Takes a date in dd/MM/yyyy format and prints in format Month Day, Year 
 * 	INPUT: Date in dd/MM/yyyy format.
 * 	OUTPUT: Date in Month Day, Year format.
 */

public class Tutorial2
{	public static void main(String[] args)
    {	
		for (int i=0; i < 3; i++)
		{	Scanner sc = new Scanner(System.in);
			System.out.print("Enter input date in dd/MM/yyyy format: ");
			String orgDate = sc.next();
			String convertedDate = Tutorial2.convertDate(orgDate);
			System.out.println("The date "+orgDate+" entered is: "+convertedDate);			
		}
    }

	public static String convertDate(String inputString)
	{
		int	month, day, year;
		boolean invalidInput = false;
		String dateString="";
		
		day = Integer.parseInt(inputString.substring(0,2));
		month = Integer.parseInt(inputString.substring(3,5));
		year = Integer.parseInt(inputString.substring(6,inputString.length()));

		switch (month)
		{	case 1:	dateString = "January"; break;
			case 2:	dateString = "February"; break;
			case 3:	dateString = "March"; break;
			case 4:	dateString = "April"; break;
			case 5:	dateString = "May"; break;
			case 6:	dateString = "June"; break;
			case 7:	dateString = "July"; break;
			case 8:	dateString = "August"; break;
			case 9:	dateString = "September"; break;
			case 10:dateString = "October"; break;
			case 11:dateString = "November"; break;
			case 12:dateString = "December"; break;
			default: invalidInput = true; break;
		}

		if (day < 1 || day > 31)
		{	// System.out.println("Invalid day entered: "+day);
			invalidInput = true;
		}
		else
			dateString = dateString +" "+day+", ";

		if (year < 1000 || year > 3000)
		{	// System.out.println("Invalid year entered: "+year);
			invalidInput = true;
		}
		else
			dateString = dateString+ year;
		
		if (invalidInput)
			return "INVALID";
		else
			return dateString;
	} // end of convertDate()
} // end of Tutorial2