C++ Programming Basics

Study Notes

C++ Programming

Operator Precedence: In the expression c1 * c2 + c3 - c4, the multiplication operator (*) will be executed first, followed by addition (+) and then subtraction (-).
Inheritance: This allows creating new classes based on existing ones, adding features without rewriting the original code. It represents an "IS A" relationship.
Default Constructor: A constructor without parameters (A()) is called a default constructor.
Pointers: Pointers are variables that store the memory addresses of other variables.
Post-fix Unary Operator: A post-fix unary operator, like ++ after a variable, is implemented using a member function with one dummy integer argument.
Multiple Inheritance: Implementing multiple inheritance requires a minimum of three classes.
Constant Member Functions: These functions cannot modify the object's data members. They ensure that the object's state remains unchanged.
Composition: This relationship represents a "whole-part" connection, meaning the composed object cannot exist independently.
Interaction: In the scenario involving Imran, the car, driving, wheels, and doors, there are three interactions: Imran driving the car, the car having four wheels, and the car having doors.
Flexibility: If extending a model doesn't impact the rest of the model, it demonstrates flexibility in the design.
Operator Overloading: The correct overload for the *= operator for a Complex class as a member function is operator*=(const Complex & c).
Class Initialization: In the class A, the members a, b, c are initialized in the constructor.
Class as Blueprint: A class acts as a blueprint for creating objects.
Object Pointer: The correct declaration of a pointer to an object of a class Student is Student* object.
Composition Relationship: In C++, composition represents a "whole-part" relationship between objects.
Class Definition: A class is a blueprint or description of an object, defining its data members (attributes) and member functions (methods).