C++ Classes & Objects

Members, constructors and access specifiers.

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A class bundles data (members) and functions (methods).
public, private (the default in a class) and protected control access.
A constructor has the class name; use a member initialiser list to set members.
A destructor ~ClassName() runs when the object is destroyed.
Mark methods that do not modify the object as const.

Key Takeaways: C++ Classes & Objects

Mastering C++ Classes & Objects helps you write clean and reliable C++ code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.

C++ Classes & Objects Code Example

C++

#include <iostream>
#include <string>

class Account {
public:
    Account(std::string owner, double balance = 0)
        : owner_(std::move(owner)), balance_(balance) {}

    void deposit(double amount) { balance_ += amount; }
    double balance() const { return balance_; }
    const std::string& owner() const { return owner_; }

private:
    std::string owner_;
    double balance_;
};

int main() {
    Account acc("Hina", 1000);
    acc.deposit(500);
    std::cout << acc.owner() << ": " << acc.balance() << "\n";
    return 0;
}

Output