Constructor in Multilevel Inheritance in C++ Last Updated : 07 Mar, 2022 Comments Improve Suggest changes Like Article Like Report Constructor is a class member function with the same name as the class. The main job of the constructor is to allocate memory for class objects. Constructor is automatically called when the object is created. Multilevel Inheritance Derivation of a class from another derived class is called Multilevel Inheritance. Class A is the base class for the derived class B, which in turn serves as a base class for the derived class C. Class B provides a link for the inheritance between A and C and is known as an intermediate base class. The chain A, B, C is known as the inheritance path. Constructor in Multilevel Inheritance Example 1: Below is the C++ program to show the concept of constructor in multilevel Inheritance. C++ // C++ program to implement // constructor in multilevel // Inheritance #include<iostream> using namespace std; // Base class class A { public: A() { cout << "Base class A constructor \n"; } }; // Derived class B class B: public A { public: B() { cout << "Class B constructor \n"; } }; // Derived class C class C: public B { public: C() { cout << "Class C constructor \n"; } }; // Driver code int main() { C obj; return 0; } OutputBase class A constructor Class B constructor Class C constructor Example 2: Below is the C++ program to implement multilevel inheritance. C++ // C++ program to implement // multilevel inheritance #include<iostream> using namespace std; // Base class A class A { public: A() { int a = 5, b = 6, c; c = a + b; cout << "Sum is:" << c << endl; } }; // Class B class B: public A { public: B() { int d = 50,e = 35, f; f = d - e; cout << "Difference is:" << f << endl; } }; // Derived class C class C: public B { public: C() { int g = 10, h = 20, i; i = g * h; cout << "Product is:" << i << endl; } }; // Driver code int main() { C obj; return 0; } OutputSum is:11 Difference is:15 Product is:200 Comment More infoAdvertise with us Next Article Constructor in Multilevel Inheritance in C++ akshaysobti15 Follow Improve Article Tags : C++ Geeks Premier League Geeks-Premier-League-2022 cpp-constructor cpp-inheritance Practice Tags : CPP Similar Reads Constructor in Multiple Inheritance in C++ Constructor is a class member function with the same name as the class. The main job of the constructor is to allocate memory for class objects. Constructor is automatically called when the object is created. Multiple Inheritance: Multiple Inheritance is a feature of C++ where a class can derive fro 2 min read C++ Multilevel Inheritance Multilevel Inheritance is a type of inheritance in C++ where one class inherits another class, which in turn is derived from another class. It is known as multi-level inheritance as there are more than one level of inheritance.For example, if we take Grandfather as a base class then Father is the de 4 min read Multiple Inheritance in C++ Multiple Inheritance is a feature of C++ where a class can inherit from more than one classes. The constructors of inherited classes are called in the same order in which they are inherited. For example, in the following program, B's constructor is called before A's constructor.A class can be derive 5 min read Importance of Constructors in C++ Constructors are special member functions in C++ that are invoked automatically when an object of a class is created. Their primary role is to initialize objects. In this article, we will learn all the factors that makes the constructor important in C++.Table of ContentInitialization of ObjectsResou 8 min read Difference between Single and Multiple Inheritance in C++ Single InheritanceSingle inheritance is one in which the derived class inherits the single base class either public, private, or protected access specifier. In single inheritance, the derived class uses the features or members of the single base class. These base class members can be accessed by a d 4 min read Default Constructors in C++ A default constructor is a constructor that can be called without any arguments while creating an object. It can either takes no arguments or has default values for all its parameters. It is also referred to as a zero-argument constructor when it explicitly accepts no arguments.The C++ compiler auto 4 min read Comparison of Inheritance in C++ and Java The purpose of inheritance is the same in C++ and Java. Inheritance is used in both languages for reusing code and/or creating an ‘is-a’ relationship. The following examples will demonstrate the differences between Java and C++ that provide support for inheritance. 1) In Java, all classes inherit fr 4 min read Types of Constructors in C++ In C++, there are several types of constructors, each serving a different purpose. Constructors can be classified based on in which situations they are being used. There are 4 types of constructors in C++:Default Constructor: No parameters. They are used to create an object with default values.Param 13 min read Can a constructor be private in C++ ? Prerequisite : Constructors A constructor is a special member function of a class which initializes objects of a class. In C++, constructor is automatically called when object of a class is created. By default, constructors are defined in public section of class. So, question is can a constructor be 3 min read Like