Bank Management System Project In C++ Source Code

7 min read Jun 28, 2024

Bank Management System Project in C++ Source Code

This article will guide you through the development of a basic Bank Management System using C++. This project will cover core functionalities like creating accounts, depositing and withdrawing funds, and displaying account information.

Project Structure

The project will be structured with the following files:

main.cpp: The main program file, handling user interaction and calling relevant functions.
account.cpp: Contains classes and functions for managing account data.
account.h: Header file for the account class.

1. Account Class (`account.h` and `account.cpp`)

account.h

#ifndef ACCOUNT_H
#define ACCOUNT_H

#include 

class Account {
private:
    int accountNumber;
    std::string accountHolderName;
    double balance;

public:
    // Constructor
    Account(int accNo, std::string name, double initialBalance);

    // Getters
    int getAccountNumber() const;
    std::string getAccountHolderName() const;
    double getBalance() const;

    // Methods
    void deposit(double amount);
    void withdraw(double amount);
};

#endif

account.cpp

#include "account.h"
#include 

// Constructor
Account::Account(int accNo, std::string name, double initialBalance) {
    accountNumber = accNo;
    accountHolderName = name;
    balance = initialBalance;
}

// Getters
int Account::getAccountNumber() const {
    return accountNumber;
}

std::string Account::getAccountHolderName() const {
    return accountHolderName;
}

double Account::getBalance() const {
    return balance;
}

// Methods
void Account::deposit(double amount) {
    if (amount > 0) {
        balance += amount;
        std::cout << "Deposit successful. New balance: " << balance << std::endl;
    } else {
        std::cout << "Invalid deposit amount." << std::endl;
    }
}

void Account::withdraw(double amount) {
    if (amount > 0 && amount <= balance) {
        balance -= amount;
        std::cout << "Withdrawal successful. New balance: " << balance << std::endl;
    } else {
        std::cout << "Insufficient funds or invalid withdrawal amount." << std::endl;
    }
}

2. Main Program (`main.cpp`)

#include 
#include "account.h"
#include 

using namespace std;

int main() {
    vector accounts;
    int choice;
    int accountNumber;

    do {
        cout << "\nBank Management System" << endl;
        cout << "1. Create Account" << endl;
        cout << "2. Deposit" << endl;
        cout << "3. Withdraw" << endl;
        cout << "4. Display Account Details" << endl;
        cout << "5. Exit" << endl;
        cout << "Enter your choice: ";
        cin >> choice;

        switch (choice) {
            case 1: { // Create Account
                string name;
                double initialBalance;
                cout << "Enter account holder name: ";
                cin.ignore();  // Consume newline character from previous input
                getline(cin, name);
                cout << "Enter initial balance: ";
                cin >> initialBalance;

                // Generate a unique account number (replace with your logic)
                accountNumber = accounts.size() + 1; 

                accounts.push_back(Account(accountNumber, name, initialBalance));
                cout << "Account created successfully. Account Number: " << accountNumber << endl;
                break;
            }
            case 2: { // Deposit
                cout << "Enter account number: ";
                cin >> accountNumber;
                
                // Find the account (add error handling)
                for (auto& acc : accounts) {
                    if (acc.getAccountNumber() == accountNumber) {
                        double amount;
                        cout << "Enter deposit amount: ";
                        cin >> amount;
                        acc.deposit(amount);
                        break;
                    }
                }
                break;
            }
            case 3: { // Withdraw
                cout << "Enter account number: ";
                cin >> accountNumber;
                
                // Find the account (add error handling)
                for (auto& acc : accounts) {
                    if (acc.getAccountNumber() == accountNumber) {
                        double amount;
                        cout << "Enter withdrawal amount: ";
                        cin >> amount;
                        acc.withdraw(amount);
                        break;
                    }
                }
                break;
            }
            case 4: { // Display Account Details
                cout << "Enter account number: ";
                cin >> accountNumber;
                
                // Find the account (add error handling)
                for (auto& acc : accounts) {
                    if (acc.getAccountNumber() == accountNumber) {
                        cout << "Account Number: " << acc.getAccountNumber() << endl;
                        cout << "Account Holder: " << acc.getAccountHolderName() << endl;
                        cout << "Balance: " << acc.getBalance() << endl;
                        break;
                    }
                }
                break;
            }
            case 5:
                cout << "Exiting..." << endl;
                break;
            default:
                cout << "Invalid choice." << endl;
        }
    } while (choice != 5);

    return 0;
}

Explanation:

Account Class:
- The Account class encapsulates data (account number, name, balance) and methods (deposit, withdraw, getters) for managing individual accounts.
Main Program:
- The main program handles user interaction through a menu.
- It uses a vector to store Account objects, representing all accounts in the system.
- Create Account:
  - Prompts the user for account information (name, initial balance).
  - Generates a unique account number (replace with your logic for a real system).
  - Creates an Account object and adds it to the accounts vector.
- Deposit and Withdraw:
  - Prompts the user for the account number and amount.
  - Iterates through the accounts vector to find the matching account.
  - Calls the appropriate deposit or withdraw method on the found account.
- Display Account Details:
  - Prompts for the account number.
  - Finds the account and displays its details using the getter methods.

Enhancements:

Error Handling: Add error handling for invalid inputs (e.g., negative amounts, non-numeric values).
File Persistence: Implement functionality to save and load account data to a file, so data is not lost when the program exits.
Account Types: Extend the project to support different account types (e.g., savings, current) with specific features.
Security: Implement basic security measures like password protection for accounts.

This basic Bank Management System is a starting point. You can build upon this foundation by adding more features and refining its functionality to create a more robust and feature-rich system. Remember to test your code thoroughly to ensure its correctness and stability.

Bank Management System Project In C++ Source Code