C++ - TUTORIAL CLASS

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I was writing many tutorial about IT knowledge, from dekstop programming until web programming. And I too writing general knowledge and little about design using “adobe photoshop”.

But, now I want writing IT knowledge about dekstop programming using “C++”. And this time regarding the use of learning about “Classes”.

Ok.. let’s do read my article…

In the programming language C + + there is also a function class. Class in C + + is a logical method for setting data and functions in the same structure (not different). Class has its own declaration that uses the keyword class, which is functionally the same as the keyword struct, but with the inclusion of a function as a member of that class..

Syntax Class :

class name_of_class 

  {

    permission_label_1:

    member_number_1;

    permission_label_2:

    member_ number _2;

    ....

    ....

 }

 Name_of_object;

Logic ::

name_of_class

>> name from the class, you can have anything else

permission_label_1

>> This statement can be either on the declaration of the function or data (the contents of the function)

member_number_1;

>> contents of name_of_object

Name_of_object;

>> may include one or more valid object identifier.

• Private

>> class members can only be accessed from other members of the same class (instead of a different class) or from the class "friend".

• Protected

>>which is the opposite of provate members can be accessed from the members of the same class or a class friend, and also members of the class of derivatives (derived).

• Public

>>members can be accessed from any class or combination of private and proteced.

Example 1:

You can copy thiscoding and paste in your compiller..

#include <iostream.h>

class CRectangle

{

    int g, h;

    public:

    void set_values (int,int);

    int area (void) {return (g * h);}

};

void CRectangle::set_values (int m, int l)

{

    g = m;

    h = l;

}

To result ::

value1 == 10

Value2 ==20

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