Mastering C++: A Comprehensive Quiz Based on 'Thinking in C++'

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Test your C++ skills with our quiz based on Bruce Eckel's 'Thinking in C++'. Dive into object-oriented programming, advanced topics, and fundamentals. Perfect for learners and experts alike. Assess your knowledge and become a C++ master!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


How are constructors called in a class hierarchy?

  1. From derived to base

  2. In parallel

  3. Randomly

  4. From base to derived

The correct answer is: From base to derived

Constructors are called from base to derived in a class hierarchy because in object-oriented programming, derived classes inherit from base classes. In order for a child class to have access to the parent class's properties and methods, the parent class's constructor must be called first in order to initialize the parent class's members. Therefore, constructors must be called from base to derived in order for the inheritance relationship to function properly. This means that the base class's constructor must always be called before the derived class's constructor. Options A, B, and C are incorrect because they do not follow this logical sequence and would result in potential errors or issues with the class hierarchy.