In C++, polymorphism requires :Inheritance onlyVirtual functions only References onlyInheritance, Virtual functions and reference
Question
In C++, polymorphism requires :Inheritance onlyVirtual functions only References onlyInheritance, Virtual functions and reference
Solution
In C++, polymorphism requires Inheritance, Virtual functions and references.
Here's why:
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Inheritance: This is the mechanism of basing an object or class upon another object or class, retaining similar implementation. Inheritance allows programmers to create classes that are built upon existing classes. It enables a class to inherit the properties and methods of another class. This is important for polymorphism as it allows a subclass to be treated as its superclass.
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Virtual Functions: These are used to achieve runtime polymorphism. They are declared using the virtual keyword, and can be redefined in the derived class. It is what makes the compiler to perform dynamic linkage or late binding on the function.
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References: References are used to achieve polymorphism when we want to call a function that has been overridden in a derived class using a reference of the base class type to an object of the derived class.
So, all three - Inheritance, Virtual functions and references are required to achieve polymorphism in C++.
Similar Questions
In C++, parametric polymorphism is implemented using:Virtual functionsFunction overloadingTemplate syntaxClass inheritance
What is polymorphism in C++?The ability of a function or an object to take multiple forms.The ability to execute multiple functions simultaneously.The ability to inherit multiple classes.The ability to overloading operators.
Which of the following is an example of runtime polymorphism?Function overloadingOperator overloadingVirtual functionsInline functions
Define pure virtual functions. Write a C++ program to illustrate pure virtual functions.With an example, explain the syntax for passing arguments to base class constructors in multiple inheritance.
are used for generic programming. Options Inheritance Virtual Functions Templates None of these
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