Abstract Data Type in Cpp
Abstract classes cant be used for. Lets look at the abstract factory design pattern with below example. Abstract Class In C Language Coding Languages Language Class A class is defined as-class A private. . Unlike C in Java a separate keyword abstract is used to make a class abstract. The definition of a pure virtual function may be provided and must be provided if the pure virtual is the destructor. If the data member is defined as private or protected then we cannot access the data variables directly. Virtual void fun_1 0. This is a concrete method. The functions of a class are applied for this purpose. In C we use access labels to define the abstract interface to the class. The interface namely the types of member variables the signatures of member functions methods and properties these satisfy. This means that the function returns an int value. Call function of Base class using ptr ptr-...