13 Questions
What is the primary motivation behind using C++ classes over structs?
Better access control and ability to include functions
What are the two main limitations of using structs in C++?
Structs cannot include functions and members of a struct can be accessed by anyone
How do you access members of a laptop struct in C++?
Using the arrow operator (-> or dot operator (.))
What is the purpose of the public keyword in a C++ class?
To specify members that can be accessed from outside the class
How do you initialize a laptop object in C++ using a constructor?
Using the syntax laptop objectName(parameters)
What is the benefit of using a class constructor in C++?
It allows for automatic initialization of objects when they are created
What is the primary motivation behind using C++ classes over structs, as described in the lecture?
To overcome the limitations of structs, which cannot include functions and have members that can be accessed by anyone.
What is the significance of the private keyword in the laptop class definition?
It restricts access to the member variables screenSize, RAM, and power.
How do the powerON and powerOFF member functions in the laptop class improve the encapsulation of the power member variable?
They provide a controlled interface to modify the power variable, rather than allowing direct access to it.
What is the purpose of the laptop constructor in the given example?
To initialize the member variables screenSize, RAM, and power with user-provided values.
How does the printStatus member function in the laptop class provide a controlled interface to the screenSize, RAM, and power member variables?
It provides a way to access and display the values of these variables without allowing direct modification.
What is the significance of using a laptop pointer p in the main function?
It allows the powerON, powerOFF, and printStatus functions to modify the laptop object indirectly.
How does the use of a laptop class improve the organization and structure of the code compared to using a StructLaptop struct?
It provides a clear separation of concerns between data and behavior, and encapsulates the data and behavior of the laptop object.
This quiz covers the basics of C++ programming, including objects, constructors, and pointers. It focuses on the concept of struct and how to use pointers to manipulate the properties of an object. Practice your C++ skills and test your understanding of these fundamental concepts.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
