example1_basic_usage.cpp

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#include <iostream>
#include <string>

class Person {
private:
    std::string name;
    int age;

public:
    Person(const std::string& n, int a) : name(n), age(a) {}

    void introduce() const {
        std::cout << "Hello, I'm " << name << " and I'm " << age << " years old." << std::endl;
    }

    void haveBirthday() {
        age++;
        std::cout << "Happy Birthday! " << name << " is now " << age << " years old." << std::endl;
    }
};

int main() {
    Person alice("Alice", 30);
    alice.introduce();
    alice.haveBirthday();
    return 0;
}