When should I use constructors in C++?

Can you explain when to use constructors in C++?

Constructors are special member functions used to initialize objects. You should use them when you want to set initial values for object attributes.

What are the different types of constructors?

There are three main types: default constructors, parameterized constructors, and copy constructors. Each serves a different purpose.

Can you give an example of a parameterized constructor?

Sure! A parameterized constructor allows you to pass arguments to initialize an object. For example:

class Point {
public:
    int x, y;
    Point(int xVal, int yVal) : x(xVal), y(yVal) {}
};

This initializes a Point object with specific x and y values.

What happens if I don't define a constructor?

If you don't define any constructor, C++ provides a default constructor that initializes members with default values (zero for basic types).