package dk.itu.oop.lecture8;

interface Date1 {

	class DateException extends Exception{
		DateException(String errorMessage){
			super(errorMessage);
		}
	}

	void setDate(int year, int month, int day) throws DateException;
	int getYear();
	int getMonth();
	int getDay();
}

interface Date {

	class DateException extends Exception{
		public final String field;
		// remember the field so we can ask.
		public DateException(String field){
			super("Date is wrong in " + field);
			this.field = field;
		}
	}

	void setDate(int year, int month, int day) throws DateException;
	int getYear();
	int getMonth();
	int getDay();
}