Thread: can't get it to reassign the private variable...

when i run my program, it lets me input the first value for the month (of type int) but then when i go to input the 3 character line it just gives me the same result as per the first value entered. here's what the output looks like:

-----------------------------------------------------------
Enter the month as a number:
5
May
Enter the month as the first three letters:
Jan

The month is 5
Press any key to continue

-----------------------------------------------------------

i'll attach my code so you guys can try to help me:

Code:

#include <iostream>

using namespace std;

class Month
{

public:
	Month(char first, char second, char third);
	Month(int number);
	Month();
	void input_month_int(istream& cin);
	void input_month_alpha(istream& cin);
	void output_month_int(ostream& cout);
	void output_month_alpha(ostream& cout);


private:

	int month_number;

};

int main()
{
	Month a_month;
	
	cout<<"Enter the month as a number:" <<endl;
	a_month.input_month_int(cin);

	a_month.output_month_alpha(cout);
	
	cout<<"Enter the month as the first three letters:" <<endl;
	a_month.input_month_alpha(cin);
	cout<<endl;

	a_month.output_month_int(cout);



	return 0;
}



Month::Month(char first, char second, char third)
{
	if (((first=='J')||(first=='j')) && (second=='a') && (third=='n'))
		month_number=1;
	if (((first=='F')||(first=='f')) && (second=='e') && (third=='b'))
		month_number=2;
	if (((first=='M')||(first=='m')) && (second=='a') && (third=='r'))
		month_number=3;
	if (((first=='A')||(first=='a')) && (second=='p') && (third=='r'))
		month_number=4;
	if (((first=='M')||(first=='m')) && (second=='a') && (third=='y'))
		month_number=5;
	if (((first=='J')||(first=='j')) && (second=='u') && (third=='n'))
		month_number=6;
	if (((first=='J')||(first=='j')) && (second=='u') && (third=='l'))
		month_number=7;
	if (((first=='A')||(first=='a')) && (second=='u') && (third=='g'))
		month_number=8;
	if (((first=='S')||(first=='s')) && (second=='e') && (third=='p'))
		month_number=9;
	if (((first=='O')||(first=='o')) && (second=='c') && (third=='t'))
		month_number=10;
	if (((first=='N')||(first=='n')) && (second=='o') && (third=='v'))
		month_number=11;
	if (((first=='D')||(first=='d')) && (second=='e') && (third=='c'))
		month_number=12;
};

Month::Month(int number)
{
	month_number=number;
};

Month::Month()
{
};

void Month::input_month_int(istream& cin)
{
	cin>>month_number;
}

void Month::input_month_alpha(istream& cin)
{
	char first, second, third;
	cin.get(first);
	cin.get(second);
	cin.get(third);
	Month some_month(static_cast<char>(first), static_cast<char>(second), static_cast<char>(third));
	
	
	
	if (((first=='J')||(first=='j')) && (second=='a') && (third=='n'))
		month_number=1;
	if (((first=='F')||(first=='f')) && (second=='e') && (third=='b'))
		month_number=2;
	if (((first=='M')||(first=='m')) && (second=='a') && (third=='r'))
		month_number=3;
	if (((first=='A')||(first=='a')) && (second=='p') && (third=='r'))
		month_number=4;
	if (((first=='M')||(first=='m')) && (second=='a') && (third=='y'))
		month_number=5;
	if (((first=='J')||(first=='j')) && (second=='u') && (third=='n'))
		month_number=6;
	if (((first=='J')||(first=='j')) && (second=='u') && (third=='l'))
		month_number=7;
	if (((first=='A')||(first=='a')) && (second=='u') && (third=='g'))
		month_number=8;
	if (((first=='S')||(first=='s')) && (second=='e') && (third=='p'))
		month_number=9;
	if (((first=='O')||(first=='o')) && (second=='c') && (third=='t'))
		month_number=10;
	if (((first=='N')||(first=='n')) && (second=='o') && (third=='v'))
		month_number=11;
	if (((first=='D')||(first=='d')) && (second=='e') && (third=='c'))
		month_number=12;



}

void Month::output_month_int(ostream& cout)
{
	cout<<"The month is " <<month_number <<endl;
}

void Month::output_month_alpha(ostream& cout)
{
	if (month_number==1)
		cout<<"Jan" <<endl;
	if (month_number==2)
		cout<<"Feb" <<endl;
	if (month_number==3)
		cout<<"Mar" <<endl;
	if (month_number==4)
		cout<<"Apr" <<endl;
	if (month_number==5)
		cout<<"May" <<endl;
	if (month_number==6)
		cout<<"Jun" <<endl;
	if (month_number==7)
		cout<<"Jul" <<endl;
	if (month_number==8)
		cout<<"Aug" <<endl;
	if (month_number==9)
		cout<<"Sep" <<endl;
	if (month_number==10)
		cout<<"Oct" <<endl;
	if (month_number==11)
		cout<<"Nov" <<endl;
	if (month_number==12)
		cout<<"Dec" <<endl;
}