C++ Inheritance

What is inheritance in C++?

• Inheritance in C++ is used to create new classes based on existing classes

• Inheritance in C++ allows a class to inherit properties and behaviors from another class.

• Inheritance in C++ is limited to inheriting only data members from another class

• Inheritance in C++ is not supported in object-oriented programming

Explain the types of inheritance in C++ with examples.

• The types of inheritance in C++ are single inheritance, multiple inheritance, multilevel inheritance, hierarchical inheritance, and hybrid inheritance.

• Simple inheritance, complex inheritance, compound inheritance

• Linear inheritance, parallel inheritance, divergent inheritance

• Double inheritance, triple inheritance, quadruple inheritance

What is the syntax for inheriting a class in C++?

• class DerivedClass :: BaseClass {}

• class DerivedClass : public BaseClass {}

• class DerivedClass : BaseClass {}

• class DerivedClass : accessSpecifier BaseClass {}

What is the difference between public, private, and protected inheritance in C++?

• Protected inheritance makes the private members of the base class protected in the derived class

• Private inheritance makes the public members of the base class private in the derived class

• Public inheritance makes the private members of the base class accessible in the derived class

• Public inheritance makes the public members of the base class accessible in the derived class, private inheritance makes the public and protected members of the base class private in the derived class, and protected inheritance makes the public and protected members of the base class protected in the derived class.

How does C++ support multiple inheritance?

• C++ supports multiple inheritance by allowing a class to inherit from more than one base class.

• C++ supports multiple inheritance by allowing a class to inherit from only one base class.

• C++ supports multiple inheritance by allowing a class to inherit from derived classes only.

• C++ supports multiple inheritance by allowing a class to inherit from interfaces only.

Explain the concept of virtual inheritance in C++.

• Virtual inheritance in C++ is used to allow multiple instances of the common base class to be inherited by the derived class

• Virtual inheritance in C++ is used to resolve the ambiguity that arises when a class is derived from multiple classes that have a common base class. It ensures that only one instance of the common base class is inherited by the derived class.

• Virtual inheritance in C++ is used to prevent a class from being inherited by any other class

• Virtual inheritance in C++ is used to create instances of classes that are not physically present in memory

What are the advantages of using inheritance in C++?

• Limiting flexibility in class design

• The advantages of using inheritance in C++ include code reusability, promoting polymorphism, and creating a hierarchical class structure.

• Increasing code complexity

• Reducing code modularity

Discuss the potential drawbacks of using inheritance in C++.

• Improved modularity

• Enhanced encapsulation

• Potential drawbacks of using inheritance in C++ include tight coupling between classes and the diamond problem.

• Increased code reusability

How can you prevent a class from being inherited in C++?

• Use the 'sealed' keyword when declaring the class.

• Use the 'static' keyword when declaring the class.

• Use the 'private' keyword when declaring the class.

• Use the 'final' keyword when declaring the class.

Provide an example of a real-world scenario where inheritance in C++ would be beneficial.

• Inheritance in C++ is never beneficial, it only adds unnecessary complexity

• Banking system with different types of accounts inheriting common attributes and behaviors from a base account class.

• Using inheritance in C++ leads to slower performance and should be avoided

• Inheritance in C++ is outdated and should be replaced with composition