Inheritance is one of the great feature in Object Oriented Programming. Ruby supports inheritance. Inheritance allows to inherit the features of the base classes to its derived classes. That means, through derived class objects we can access the features of the base class. Through this Article, we will discuss how we use Inheritance in Ruby. […]
C#: Classes – Access Specifiers & Inheritance
‘C#’ class members are accessible based on their access specifiers. I will write a separate article on class’s access specifiers in more detail. But here I want to give an high level introduction on access specifiers. Access Specifiers ‘C#’ provides public, private, internal, protected and protected internal access specifiers. Remember that the class members are […]
C++ – Inheritance – to extend class
Inheritance allows reusing the functionality. Inheritance inherits base class members to its derived class. We can use base class members within the derived class without rewriting the base class code. C++ allows single inheritance as well as multiple inheritances. In single inheritance, the derived class is inherited from a single base class. In multiple inheritances, […]
C++ – Class Constructors
In C++, class constructors are special kind of methods to instantiate a class. When class’s object is going to create, C++ will first call class’s constructor to initialize the class. Initialize the class means, assigning it’s members and allocating any dynamic memory etc., After class’s constructor is called, class’s object creation will be completed. Constructors […]
C++ – How to create an interface or an abstract class?
An interface is a contract between a caller and a callee. An interface doesn’t provide any implementation. It provides a blue-print. C++ uses virtual keyword to create an interface or an abstract class. Let’s take an example: class IHello { public: virtual void SayHello() = 0; }; IHello is an interface with SayHello function prototype. […]
C++ – How to define virtual functions?
C++ is a Object Oriented language. C++ uses virtual keyword in different places. One of the use of virtual keyword is to create virtual functions. An important feature in Object Oriented programming is Polymorphism; which means multiple-behaviors. An object has multiple behaviors and it shows particular behavior depending on its context. C++ achieves this with […]