Day_23

Comment: With this homework I had a lot of trouble understanding classes. I watched a lot of you tube videos on how classes work, but I feel like everyone had a different way of writing classes. I got David to help me finish the code. He emphasize how important  structures are so I better understand them before the final.
//ClassDate.cpp

#include <iostream>

using namespace std;
using std::cout;
using std::cin;
using std::endl;


//class definition
class Date{
private:                               // User manipuation.
int month;
int day;
int year;

public:                             // Only the program can change this.
Date();
Date(int month,int day,int year);
void print_f1();                    //format 1. 01/01/2014
void print_f2();                    //format 2. January 1, 2014
void print_f3();                    //format 3  1 January 2014

};//end class Date


int main()
{
            //testing class Date

Date myDate;
myDate.print_f1();                  //print date #1
cout<<endl;

     
myDate.print_f2();                 //print date #2
cout<<endl;

         //myDate.print_f3();                  //print date #3
cout<<endl;

system("pause");
return 0;
}





//class implementation
Date::Date()
{
cout << "Enter the number for the month.";
cin >> month;

cout << "Enter the day.";
cin >> day;

cout << "Enter a four digit year.";
cin >> year;
}                                        //end Date constructor -no arguments passed-

Date::Date(int month,int day,int year)        // Validation.
{
if((month > 1) || (month > 12) || (day <1) || (day > 31) || (year < 1950) || (year > 2020))
cout << "Illegal data." << endl;
} //end Date constructor

void Date::print_f1()                        //Print menthod #1.
{
string Month;

switch(month){//class data member: month
case 1:
Month="January";
break;

case 2:
Month="February";
break;

case 3:
Month="March";
break;

case 4:
Month="April";
break;

case 5:
Month="May";
break;

case 6:
Month="June";
break;

case 7:
Month="July";
break;

case 8:
Month="August";
break;

case 9:
Month="September";
break;

case 10:
Month="October";
break;

case 11:
Month="November";
break;

case 12:
Month="December";
break;
}
cout << Month << '/'<< day << '/' <<year;
}
void Date::print_f2()                        //Print menthod #2.
{
cout << month << '/' << day << '/' << year;
}