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Confused about class

TXHARDIN (3)
I'm running into problems writing a program that uses class and other functions. Everything appears fine until the the very end, and I get the error message "too few arguments in the function call". Any help would be appreciated. 

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#include<string> 
using namespace std;

class Date {
public:
	Date();
	Date(int, int,int);
	void showDate1(int month,int day,int year);
	void showDate2(string monthName, int day, int year);
	void showDate3(int day,string monthName,int year);
	void setDate(int month, int day, int year);
	string monthName();
private:
	int month;
	int day;
	int year;
	
};
  

#include<string>
#include<iostream>
using namespace std;
#include "date.h"
//HW6 class implementation
Date::Date()
{
	day = 1;
	month = 1;
	year = 2001;
}

Date::Date(int month, int day, int year)
{
	day = day;
	month = month;
	year = year;

}
string Date::monthName()
{
	if (month == 1)
		return "January";
	else if (month == 2)
		return "February";
	else if (month == 3)
		return "March";
	else if (month == 4)
		return "April";
	else if (month == 5)
		return "May";
	else if (month == 6)
		return "June";
	else if (month == 7)
		return "July";
	else if (month == 8)
		return "August";
	else if (month == 9)
		return "September";
	else if (month == 10)
		return "October";
	else if (month == 11)
		return "November";
	else if (month == 12)
		return "December";
}

void Date:: showDate1(int month, int day, int year)
{
	cout << month << "/" << day << "/" << year << endl;
}
void Date :: showDate2(string monthName, int day, int year)
{
	cout << monthName << " " << day << ", " << year << endl;
}
void Date:: showDate3(int day, string monthName, int year)
{
	cout << day << " " << monthName << " " << year << endl;
}
void Date:: setDate(int month, int day, int year)
{
	day = day;
	month = month;
	year = year;
}


#include <iostream>
using namespace std;
#include "date.h"
int main()
{
	Date d1;
	Date d2(2, 12, 2010);
	d1.showDate1();
	d2.showDate2();
	d1.setDate(8, 29, 1986);
	d1.showDate3();
	system("pause");
	return 0;
}
koothkeeper (429)
Where is your error, what line is complaining?
TXHARDIN (3)
The message is appearing at 95, 96, and 98.
jgg2002 (217)
On your declaration of the functions you have:
1
2
3
 
void showDate1(int month,int day,int year);
void showDate2(string monthName, int day, int year);
void showDate3(int day,string monthName,int year);


When you call the functions you have:
1
2
3
 
d1.showDate1();
d2.showDate2();
d1.showDate3();


showDate1(), showDate2(), showdate3() are declared with 3 variables as arguments, but are used without.
TXHARDIN (3)
I tried the call code like this

d1.showDate1(int month, int day, int year);

on all three errors and all I got was a new error code, saying type name not allowed.
jgg2002 (217)
You should do something like this:

d1.showDate1(30, 4, 2016);

then

d2.showDate("April", 4, 2016);

then

d1(30, "April", 2016);
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