Microsoft Visual C 2019 2021 -

// Deposit implementation void BankAccount::deposit(double amount) { if (amount <= 0) { throw std::invalid_argument("Deposit amount must be positive."); } balance += amount; }

// Get balance implementation double BankAccount::getBalance() const { return balance; } You can use this BankAccount class in your main.cpp or any other source file in your project. microsoft visual c 2019 2021

#endif // BANKACCOUNT_H // BankAccount.cpp (Source File) #include "BankAccount.h" #include <stdexcept> // For std::invalid_argument } balance += amount

class BankAccount { private: double balance; microsoft visual c 2019 2021

// BankAccount.h (Header File) #ifndef BANKACCOUNT_H #define BANKACCOUNT_H