Keep Coding Keep Cheering!
What is Operator Overloading? Operator overloading is a compile-time polymorphism in which the operator is overloaded to provide the user-defined data type with a special meaning. Most of the operators available in C++ are overloaded or redefined using operator overloading. It’s used to run an operation on a user-defined data type. Operators that can be […]
October 29, 2022 | C++ | No comments
What is a Virtual Destructor? Deleting a derived class object with a non-virtual destructor using a pointer of the base class type results in undefined behavior. While deleting instances of the derived class using a base class pointer object, a virtual destructor is used to free up the memory space allocated by the derived class […]
October 28, 2022 | C++ | No comments
What are Pure Virtual Functions? A pure virtual function is a virtual function in C++ that does not require any function definition and is only declared. It is declared by assigning a value of 0 to the declaration. For instance, What is an Abstract Class? In C++, an abstract class has at least one pure […]
October 27, 2022 | C++ | No comments
A virtual function is a member function declared in a base class that is re-defined (overridden) by a derived class. When you use a pointer or a reference to the base class to refer to a derived class object, you can call a virtual function for that object and execute the derived class’s version of […]
October 26, 2022 | C++ | No comments
What is Polymorphism? The term “polymorphism” refers to having multiple forms. Polymorphism is defined as the ability of a message to be displayed in more than one form. There are two types of polymorphism: Compile-time Polymorphism. Runtime Polymorphism. Method Overriding: Function overriding is a concept in C++ that allows us to define a function with the […]
October 26, 2022 | C++ | No comments
Upcasting is the process of creating the derived class’s pointer or reference from the base class’s pointer or reference. It refers to the process of converting a derived class’s reference or pointer to a base class’s reference or pointer. Upcasting is a safer casting technique than downcasting. It supports public inheritance, which allows references to […]
October 26, 2022 | C++ | No comments
If we inherit a class from another class and create an object of the derived class, it is obvious that the derived class’s default constructor will be invoked, but first, the default constructors of all base classes will be invoked. The data members and member functions of the base class are automatically included in the derived […]
October 23, 2022 | C++ | No comments
There are 5 types of Inheritance in C++: Single inheritance Multiple inheritance Hierarchical inheritance Multilevel inheritance Hybrid inheritance Single Inheritance: A class derives from only one base class in single inheritance. This means that there is only one subclass descended from a single superclass. Syntax: Example: Output: Multiple inheritance: Multiple inheritance is a type of […]
October 23, 2022 | C++ | No comments
Inheritance refers to a class’s ability to derive properties and characteristics from another class. One of the most important aspects of Object-Oriented Programming is inheritance. This also allows: Code reusability Quick implementation time Runtime polymorphism In inheritance, there are two kinds of classes: A parent class, also known as a base class, is a class whose […]
October 21, 2022 | C++ | No comments
A pointer to a C++ class is created in the same way that a pointer to a structure is created, and to access members of a class pointer, use the member access operator ->. To better understand the concept of a pointer to a class, consider the following example: Example: Output: Pointer to Data Members […]
October 20, 2022 | C++ | No comments