oops interview questions c++ - Wikitechy https://www.wikitechy.com/interview-questions/tag/oops-interview-questions-c/ Interview Questions Wed, 15 Sep 2021 07:21:55 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png oops interview questions c++ - Wikitechy https://www.wikitechy.com/interview-questions/tag/oops-interview-questions-c/ 32 32 Which of the following are available only in the class hierarchy chain ? https://www.wikitechy.com/interview-questions/programming/which-of-the-following-are-available-only-in-the-class-hierarchy-chain/ https://www.wikitechy.com/interview-questions/programming/which-of-the-following-are-available-only-in-the-class-hierarchy-chain/#respond Fri, 27 Aug 2021 00:22:04 +0000 https://www.wikitechy.com/interview-questions/?p=2570

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

A. Public data members

B. Private data members

C. Protected data members

D. Member functions

Answer : C. Protected data members

Explanation :

  • Public – The members declared as Public are accessible from outside the Class through an object of the class.
  • Protected – The members declared as Protected are accessible from outside the class but only in a class derived from it.
  • Private – These members are only accessible from within the class. No outside Access is allowed.
  • Member Function – Member functions are the functions, which have their declaration inside the class definition and works on the data members of the class. The definition of member functions can be inside or outside the definition of class.
]]> https://www.wikitechy.com/interview-questions/programming/which-of-the-following-are-available-only-in-the-class-hierarchy-chain/feed/ 0 Tarun works all night long writing code and writing more and more classes for each object he now thinks that he can write a superclass which defines some hierarchical feature for other classes, what can he use ? https://www.wikitechy.com/interview-questions/programming/tarun-works-all-night-long-writing-code-and-writing-more-and-more-classes-for-each-object-he-now-thinks-that-he-can-write-a-superclass-which-defines-some-hierarchical-feature-for-other-classes-what-c/ https://www.wikitechy.com/interview-questions/programming/tarun-works-all-night-long-writing-code-and-writing-more-and-more-classes-for-each-object-he-now-thinks-that-he-can-write-a-superclass-which-defines-some-hierarchical-feature-for-other-classes-what-c/#respond Fri, 27 Aug 2021 00:19:40 +0000 https://www.wikitechy.com/interview-questions/?p=2569

Tarun works all night long writing code and writing more and more classes for each object he now thinks that he can write a superclass which defines some hierarchical feature for other classes, what can he use ?

A. Cascading

B. Hierarchical super positioning

C. Inheritance

D. Polymorphism

Answer : C. Inheritance

Explanation :

  • In object-oriented programming, inheritance is that the mechanism of basing an object or category upon another object (prototypical inheritance) or category (class-based inheritance), holding similar implementation.
]]> https://www.wikitechy.com/interview-questions/programming/tarun-works-all-night-long-writing-code-and-writing-more-and-more-classes-for-each-object-he-now-thinks-that-he-can-write-a-superclass-which-defines-some-hierarchical-feature-for-other-classes-what-c/feed/ 0 Tarun wants to write code for his computer class homework but he had misheard the teacher and only can recollect remembering this 4 words. Which of the following is what he couldn’t have had heard ? https://www.wikitechy.com/interview-questions/programming/tarun-wants-to-write-code-for-his-computer-class-homework-but-he-had-misheard-the-teacher-and-only-can-recollect-remembering-this-4-words-which-of-the-following-is-what-he-couldnt-have-had-h/ https://www.wikitechy.com/interview-questions/programming/tarun-wants-to-write-code-for-his-computer-class-homework-but-he-had-misheard-the-teacher-and-only-can-recollect-remembering-this-4-words-which-of-the-following-is-what-he-couldnt-have-had-h/#respond Fri, 27 Aug 2021 00:17:49 +0000 https://www.wikitechy.com/interview-questions/?p=2568

Tarun wants to write code for his computer class homework but he had misheard the teacher and only can recollect remembering this 4 words. Which of the following is what he couldn’t have had heard?

A. Distributive

B. Multilevel

C. Multiple

D. Hierarchical

Answer : A. Distributive

Explanation:

Multiple Inheritance:

  • It refers to the concept of one class extending (Or inherits) more than one base class. The inheritance we learnt earlier had the concept of one base class or parent. The problem with “multiple inheritance” is that the derived class will have to manage the dependency on two base classes.
Multiple Inheritance

Multilevel Inheritance:

  • When a class extends a class, which extends anther class then this is called multilevel inheritance. For example class C extends class B and class B extends class A then this type of inheritance is known as multilevel inheritance.
Multilevel Inheritance

Hierarchical Inheritance:

  • When more than one classes inherit a same class then this is called hierarchical inheritance. For example class B, C and D extends a same class A.
Hierarchical Inheritance
]]> https://www.wikitechy.com/interview-questions/programming/tarun-wants-to-write-code-for-his-computer-class-homework-but-he-had-misheard-the-teacher-and-only-can-recollect-remembering-this-4-words-which-of-the-following-is-what-he-couldnt-have-had-h/feed/ 0 Which of the following concepts means wrapping up of data and functions together ? https://www.wikitechy.com/interview-questions/cpp/which-of-the-following-concepts-means-wrapping-up-of-data-and-functions-together/ https://www.wikitechy.com/interview-questions/cpp/which-of-the-following-concepts-means-wrapping-up-of-data-and-functions-together/#respond Mon, 12 Jul 2021 22:36:01 +0000 https://www.wikitechy.com/interview-questions/?p=376

Which of the following concepts means wrapping up of data and functions together ?

A. Abstraction

B. Encapsulation

C. Inheritance

D. None

Answer : B. Encapsulation

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