Bank Account Management System in C

#include <stdio.h>
#include <stdlib.h>

// Structure to represent a bank account
struct Account {
    int accountNumber;
    char accountHolderName[100];
    float balance;
};

// Function to create a new bank account
struct Account createAccount(int accountNumber, char accountHolderName[], float initialBalance) {
    struct Account account;
    account.accountNumber = accountNumber;
    strcpy(account.accountHolderName, accountHolderName);
    account.balance = initialBalance;
    return account;
}

// Function to display account details
void displayAccount(struct Account account) {
    printf("Account Number: %d\n", account.accountNumber);
    printf("Account Holder Name: %s\n", account.accountHolderName);
    printf("Balance: %.2f\n", account.balance);
}

// Function to deposit money into an account
void deposit(struct Account* account, float amount) {
    account->balance += amount;
    printf("Deposited %.2f. New balance: %.2f\n", amount, account->balance);
}

// Function to withdraw money from an account
void withdraw(struct Account* account, float amount) {
    if (account->balance >= amount) {
        account->balance -= amount;
        printf("Withdrawn %.2f. New balance: %.2f\n", amount, account->balance);
    } else {
        printf("Insufficient balance. Withdrawal failed.\n");
    }
}

int main() {
    struct Account accounts[10];  // Array to store accounts (up to 10 accounts)
    int accountCount = 0;        // Current number of accounts

    while (1) {
        int choice;
        printf("\nBank Account Management System Menu:\n");
        printf("1. Create Account\n");
        printf("2. Display Account Details\n");
        printf("3. Deposit Money\n");
        printf("4. Withdraw Money\n");
        printf("5. Exit\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1: {
                if (accountCount < 10) {
                    int accountNumber;
                    char accountHolderName[100];
                    float initialBalance;

                    printf("Enter Account Number: ");
                    scanf("%d", &accountNumber);
                    printf("Enter Account Holder Name: ");
                    scanf("%s", accountHolderName);
                    printf("Enter Initial Balance: ");
                    scanf("%f", &initialBalance);

                    accounts[accountCount] = createAccount(accountNumber, accountHolderName, initialBalance);
                    accountCount++;

                    printf("Account created successfully.\n");
                } else {
                    printf("Maximum account limit reached. Cannot create more accounts.\n");
                }
                break;
            }
            case 2: {
                int accountNumber;
                printf("Enter Account Number: ");
                scanf("%d", &accountNumber);

                int found = 0;
                for (int i = 0; i < accountCount; i++) {
                    if (accounts[i].accountNumber == accountNumber) {
                        displayAccount(accounts[i]);
                        found = 1;
                        break;
                    }
                }

                if (!found) {
                    printf("Account not found.\n");
                }
                break;
            }
            case 3: {
                int accountNumber;
                float amount;
                printf("Enter Account Number: ");
                scanf("%d", &accountNumber);

                int found = 0;
                for (int i = 0; i < accountCount; i++) {
                    if (accounts[i].accountNumber == accountNumber) {
                        printf("Enter Deposit Amount: ");
                        scanf("%f", &amount);
                        deposit(&accounts[i], amount);
                        found = 1;
                        break;
                    }
                }

                if (!found) {
                    printf("Account not found.\n");
                }
                break;
            }
            case 4: {
                int accountNumber;
                float amount;
                printf("Enter Account Number: ");
                scanf("%d", &accountNumber);

                int found = 0;
                for (int i = 0; i < accountCount; i++) {
                    if (accounts[i].accountNumber == accountNumber) {
                        printf("Enter Withdrawal Amount: ");
                        scanf("%f", &amount);
                        withdraw(&accounts[i], amount);
                        found = 1;
                        break;
                    }
                }

                if (!found) {
                    printf("Account not found.\n");
                }
                break;
            }
            case 5:
                exit(0);
            default:
                printf("Invalid choice. Please try again.\n");
        }
    }

    return 0;
}