text: //class definition
  class dayType
  {
  public:
  	void setDay(string);//function that sets the day
  	int getDay(int day);//function that gets the day
  	void printDay();//function that prints the day
  	int nextDay(int);//prints the next day
  	int previousDay(int);//prints the previous day
  	int calculateDay(int day, int nrdays);//calculate the day after some given days
  	void menu();//this function shows the main menu to the user
  	dayType()//constructor
  	{
  	 weekDay[0] = "Sunday";
  	 weekDay[1] = "Monday";
  	 weekDay[2] = "Tuesday";
  	 weekDay[3] = "Wednesday";
  	 weekDay[4] = "Thursday";
  	 weekDay[5] = "Friday";
  	 weekDay[6] = "Saturday";
  	 
  	 givenDay = weekDay[0];
  	 nrDays = 0;
  	 
  		givenDay = "def";
  		nrDays = 0;
  	}
  	
  private://members
  	string weekDay[7];//variable with seven components to save weekdays
  	string givenDay;//to save given day by the user
  	int nrDays;//used to add to the current day, i.e calculation function
  };