Class

A class is a user-defined data type that serves as a blueprint for creating objects. It encapsulates data (member variables) and functions (member functions) together into a single unit.

example:

class MyClass {
  private:
    int myVariable;

  public:
    // Constructor
    MyClass(int value) {
      myVariable = value;
    }

    // Member function
    void printValue() {
      cout << "My variable: " << myVariable << endl;
    }
};

int main() {
  // Create an object of the class
  MyClass obj(10);

  // Call member function on the object
  obj.printValue();

  return 0;
}

In this example,

• we define a class called MyClass with one private member variable (myVariable) and one public member function (printValue).

• The constructor initializes the myVariable using the input value passed while creating an object. In the main() function, we create an object of MyClass, passing it a value of 10.

• Then, we call the printValue() member function on that object to display its current value.

• Classes in C++ provide abstraction, encapsulation, inheritance, and polymorphism features that allow for organized code structure and reusability.

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