What Happens If The Base And Derived Class Contains Definition Of A Function With Same Prototype?

Can base and derived class have same function?

The derived classes inherit features of the base class.

Suppose, the same function is defined in both the derived class and the based class.

Now if we call this function using the object of the derived class, the function of the derived class is executed.

This is known as function overriding in C++..

Why reference is not same as a pointer?

When you create a reference, you only tell the compiler that you assign another name to the pointer variable; that’s why references cannot “point to null”, because a variable cannot be, and not be. … The important thing is that a pointer has a value, while a reference only has a variable that it is referencing.

How do you call a derived function from base class?

You could do something like this: class Base { public: Base() {} virtual ~Base() {} virtual void start() { startInternal(); } virtual void stop() { stopInternal(); } void doSomething() { startInternal(); // … stopInternal(); } private: void startInternal() { // … }

How can we access the overridden method of base class from derived class?

How to access the overridden method of base class from the derived class? Explanation: Scope resolution operator :: can be used to access the base class method even if overridden. To access those, first base class name should be written followed by the scope resolution operator and then the method name.

Why late binding is late and dynamic?

Late binding: In the late binding or dynamic binding, the compiler doesn’t decide the method to be called. Overriding is a perfect example of dynamic binding. In overriding both parent and child classes have the same method.

How will a class protect the code inside it?

How will a class protect the code inside it? Explanation: Each method or variable in a class may be marked ‘public’ or ‘private’. They are called Access Specifiers.

Why is late binding important in oops?

The primary advantage of using late binding in Component Object Model (COM) programming is that it does not require the compiler to reference the libraries that contain the object at compile time.

Which of the following are available only in class hierarchy chain?

Which of the following are available only in the class hierarchy chain?…Discussion :: OOPS Concepts – General Questions (Q. No. 39)[A].Public data members[B].Private data members[C].Protected data members[D].Member functions

Which concept implements late binding?

Which concept is used to implement late binding? Explanation: Virtual functions are used to implement the concept of late binding i.e. binding actual functions to their calls.

What is the term used to describe the situation when a function in the base class?

Overriding is the word when a function belonging to the base class is redefined in the inherited class. It is part of Java language and is essential to create & run programs written in the language. Depending upon the version and the program that needs to be executed & run successfully, overriding depends.

What does override do C++?

In a member function declaration or definition, override specifier ensures that the function is virtual and is overriding a virtual function from a base class.

What is late binding and early binding?

The compiler performs a process called binding when an object is assigned to an object variable. The early binding (static binding) refers to compile time binding and late binding (dynamic binding) refers to runtime binding.

What happens if the base and derived class contains definition of a function with the same prototype?

What happens if the base and derived class contains definition of a function with same prototype? Compiler reports an error on compilation. Only base class function will get called irrespective of object. Only derived class function will get called irrespective of object.

When function have same prototype in base class as well as in derived class function is called?

Discussion :: OOPS Concepts – General Questions (Q. What happens if the base and derived class contains definition of a function with same prototype? … Only base class function will get called irrespective of object. [C]. Only derived class function will get called irrespective of object.

Are virtual functions inherited?

Base classes can’t inherit what the child has (such as a new function or variable). Virtual functions are simply functions that can be overridden by the child class if the that child class changes the implementation of the virtual function so that the base virtual function isn’t called.

What will happen if a class is not having any name?

What will happen if a class is not having any name? It cannot have a destructor. It cannot have a constructor. It is not allowed.

What does derived class does not inherit from the base class?

Not all members of a base class are inherited by derived classes. The following members are not inherited: Static constructors, which initialize the static data of a class. Instance constructors, which you call to create a new instance of the class.