Difference between structures and clas...

Ans:

Structs are value-type variables and are thus saved on the stack, additional overhead but faster retrieval. Another difference is that structs cannot inherit.

we can give function definition and function declaration in class but this is not possible in structure

structure is used to store the data which is having sub parts .
where as class is a collection of member variables and member functions
it is not possible to call the function in structure .where asit is possible in class.

Willing to add some more points
2)By default the members variables in Structure z public whereas in Class it private
3)Class contains Member Functions, its not so in struct

structures can be used in both c and c++ while class is an OOP Concept, so it can be used in C++ only.
A class has a constructor and a destructor while a structure doesnt have any.
A class can be inherited while a structure cannot be inherited.
By default all the member variables in a structure are public while in a class they are private. The member variables can be public,protected, and private in a class but in a structure its always public.

1. it is possible to declare member functions in a struct also, you can call them...

the only difference is that: By default the members variables in Structure public whereas in Class it private

here is the proof:

struct hari
{
int nNumber;

void SetNumber(int nNewValue);
int GetNumber();


};

void hari::SetNumber(int nNewValue)
{
nNumber =nNewValue;
}

int hari::GetNumber()
{
return nNumber;
}
main()
{
struct hari h;
h.SetNumber(10);
int i= h.GetNumber();
}

Yes hari is Right.
Only diff. is that:

By default structure variable are public whereas class variable are private.

And also its possible to inherit STRUCture in C++

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