Source code seems not OK

[Fransje]

#include <iostream>
#include <stdio.h>

using namespace std;

class Function
{
      public:
       int Addition(int a, int b)
       {
           return(a+b);
       }
       
       void Print()
       {
            cout << "Hello! This works.\n";
       }
}

int main()
{
    int a, b, c;
    cout << "Welcome! Fill in a number: ";     
    cin >> a;
    cout << "Fill in another number: ";
    cin >> b;
    
    c = Function.Addition(a, b);
    
    printf("The answer is %c.\n", c);
    
    Function.Print();
    
    cout << "Bye bye! Press ENTER to quit.";
    cin.get();
    return(0);
}    
    
            
       
           

This is my source code, but when i compile it with Dev-C++, it gives this errors:

21 C:\Users\eigenaar\Documents\Eigen bestanden\C++\Source Code\Function_In_Struct.cpp new types may not be defined in a return type

21 C:\Users\eigenaar\Documents\Eigen bestanden\C++\Source Code\Function_In_Struct.cpp extraneous `int' ignored

21 C:\Users\eigenaar\Documents\Eigen bestanden\C++\Source Code\Function_In_Struct.cpp `main' must return `int'

C:\Users\eigenaar\Documents\Eigen bestanden\C++\Source Code\Function_In_Struct.cpp In function `int main(...)':

28 C:\Users\eigenaar\Documents\Eigen bestanden\C++\Source Code\Function_In_Struct.cpp expected primary-expression before '.' token

32 C:\Users\eigenaar\Documents\Eigen bestanden\C++\Source Code\Function_In_Struct.cpp expected primary-expression before '.' token

Can someone please help me?

[Athar]

You forgot a semicolon after the class declaration. Also, I hope you know that's not what classes are for, a namespace would be more appropriate. And why are you mixing cout and printf?

[Fransje]

Thanks a lot! Now it works. I used printf() because I wanted to experiment with it. But what do you mean with "a namespace would be more appropriate"?

In any case thanks.

[o3hC5Di1]

Hi there,

He means that classes are not used to group a bunch of functions.
Classes are blueprints for objects, just like in real life you have a plan for a house, and the actual house itself.

Namespaces are used to declare data (like variables or functions) in a specified scope, to avoid mixing names of those variables or functions.

The tutorial on this site has a good explanation (read: better than i could give) on both.

All the best,
NwN

[Fransje]

Thanks NwM, I got it.