Bank-Management

Bank Management System in C. It will include features like account creation, deposit, withdrawal, balance inquiry, and account deletion. Here’s a basic blueprint for creating a Bank Management System in C. It will include features like account creation, deposit, withdrawal, balance inquiry, and account deletion.

Features Create Account: Add new customer account information. Deposit Money: Add money to an existing account. Withdraw Money: Deduct money from an account (with balance check). Check Balance: View the current balance of an account. Delete Account: Remove a customer account. Exit: Exit the application. Implementation Outline The project will use file handling for data persistence, so accounts and their data remain stored even after the program ends.

Code Here is a complete implementation:

c Copy Edit #include <stdio.h> #include <stdlib.h> #include <string.h>

typedef struct { int accountNumber; char name[100]; float balance; } Account;

void createAccount(); void depositMoney(); void withdrawMoney(); void checkBalance(); void deleteAccount(); void displayMenu();

int main() { int choice; while (1) { displayMenu(); printf("\nEnter your choice: "); scanf("%d", &choice);

    switch (choice) {
        case 1:
            createAccount();
            break;
        case 2:
            depositMoney();
            break;
        case 3:
            withdrawMoney();
            break;
        case 4:
            checkBalance();
            break;
        case 5:
            deleteAccount();
            break;
        case 6:
            printf("\nThank you for using the Bank Management System. Goodbye!\n");
            exit(0);
        default:
            printf("\nInvalid choice! Please try again.\n");
    }
}
return 0;

}

void displayMenu() { printf("\n=== Bank Management System ===\n"); printf("1. Create Account\n"); printf("2. Deposit Money\n"); printf("3. Withdraw Money\n"); printf("4. Check Balance\n"); printf("5. Delete Account\n"); printf("6. Exit\n"); }

void createAccount() { Account account; FILE *file = fopen("accounts.dat", "ab");

if (!file) {
    printf("\nError: Unable to open file.\n");
    return;
}

printf("\nEnter Account Number: ");
scanf("%d", &account.accountNumber);
printf("Enter Name: ");
getchar(); // To consume leftover newline
fgets(account.name, 100, stdin);
account.name[strcspn(account.name, "\n")] = '\0'; // Remove trailing newline
account.balance = 0;

fwrite(&account, sizeof(Account), 1, file);
fclose(file);

printf("\nAccount created successfully!\n");

}

void depositMoney() { int accountNumber; float amount; Account account; FILE *file = fopen("accounts.dat", "rb+");

if (!file) {
    printf("\nError: Unable to open file.\n");
    return;
}

printf("\nEnter Account Number: ");
scanf("%d", &accountNumber);

int found = 0;
while (fread(&account, sizeof(Account), 1, file)) {
    if (account.accountNumber == accountNumber) {
        printf("Enter Amount to Deposit: ");
        scanf("%f", &amount);

        account.balance += amount;
        fseek(file, -sizeof(Account), SEEK_CUR);
        fwrite(&account, sizeof(Account), 1, file);

        printf("\nDeposit successful! New Balance: %.2f\n", account.balance);
        found = 1;
        break;
    }
}
fclose(file);

if (!found) {
    printf("\nAccount not found.\n");
}

}

void withdrawMoney() { int accountNumber; float amount; Account account; FILE *file = fopen("accounts.dat", "rb+");

if (!file) {
    printf("\nError: Unable to open file.\n");
    return;
}

printf("\nEnter Account Number: ");
scanf("%d", &accountNumber);

int found = 0;
while (fread(&account, sizeof(Account), 1, file)) {
    if (account.accountNumber == accountNumber) {
        printf("Enter Amount to Withdraw: ");
        scanf("%f", &amount);

        if (account.balance >= amount) {
            account.balance -= amount;
            fseek(file, -sizeof(Account), SEEK_CUR);
            fwrite(&account, sizeof(Account), 1, file);

            printf("\nWithdrawal successful! New Balance: %.2f\n", account.balance);
        } else {
            printf("\nInsufficient balance.\n");
        }
        found = 1;
        break;
    }
}
fclose(file);

if (!found) {
    printf("\nAccount not found.\n");
}

}

void checkBalance() { int accountNumber; Account account; FILE *file = fopen("accounts.dat", "rb");

if (!file) {
    printf("\nError: Unable to open file.\n");
    return;
}

printf("\nEnter Account Number: ");
scanf("%d", &accountNumber);

int found = 0;
while (fread(&account, sizeof(Account), 1, file)) {
    if (account.accountNumber == accountNumber) {
        printf("\nAccount Number: %d\nName: %s\nBalance: %.2f\n", account.accountNumber, account.name, account.balance);
        found = 1;
        break;
    }
}
fclose(file);

if (!found) {
    printf("\nAccount not found.\n");
}

}

void deleteAccount() { int accountNumber; Account account; FILE *file = fopen("accounts.dat", "rb"); FILE *tempFile = fopen("temp.dat", "wb");

if (!file || !tempFile) {
    printf("\nError: Unable to open file.\n");
    return;
}

printf("\nEnter Account Number to Delete: ");
scanf("%d", &accountNumber);

int found = 0;
while (fread(&account, sizeof(Account), 1, file)) {
    if (account.accountNumber == accountNumber) {
        found = 1;
        printf("\nAccount deleted successfully.\n");
    } else {
        fwrite(&account, sizeof(Account), 1, tempFile);
    }
}
fclose(file);
fclose(tempFile);

remove("accounts.dat");
rename("temp.dat", "accounts.dat");

if (!found) {
    printf("\nAccount not found.\n");
}

} Steps to Run Save the code to a file, e.g., bank_management.c. Compile it using GCC: bash Copy Edit gcc bank_management.c -o bank_management Run the executable: bash Copy Edit ./bank_management Enhancements Add password protection for accounts. Include transaction history. Improve the interface with colored output using libraries like conio.h (Windows) or ANSI escape codes (Linux).