c++ programming

vedant123 · #1 (**permalink**) April 26th, 2011, 03:55 AM

how can i use classes in c++?

#2 (**permalink**) October 10th, 2011, 08:30 AM

A class is an expanded concept of a data structure: instead of holding only data, it can hold both data and functions. An object is an instantiation of a class. In terms of variables, a class would be the type, and an object would be the variable.

Classes are generally declared using the keyword class, with the following format:

class class_name {
access_specifier_1:
member1;
access_specifier_2:
member2;
...
} object_names;

Where class_name is a valid identifier for the class, object_names is an optional list of names for objects of this class. The body of the declaration can contain members, that can be either data or function declarations, and optionally access specifiers.
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SAP ERP

pradyatwork · #3 (**permalink**) October 11th, 2011, 01:37 AM

Code:

class student
{
private:
	int admno;
	float eng,math,science;
	float total;
	float ctotal()
	{
		return eng+math+science;
	}
public:
	void Takedata()
	{
		cout<<"Enter admission number ";
		cin>> admno;
		cout<< "Enter marks in english, math, science ";
		cin>>eng>>math>>science;
		total=ctotal();
	}

	void Showdata()
	{
		cout<<"Admission number "<<admno<<"\nEnglish "
			<<eng<<"\nMath "<<math<<"\nScience "<<science<<"\nTotal "<<total;
	}
};

int main ()
{
	student obj ;
	obj.Takedata();
	obj.Showdata();
	getch();
	return 0;
}

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