bank.cpp

#include <iostream>
#include <string>
using namespace std;
class BankAccount {
	private:
 int accountNumber;
 string name;
 float balance;
public:
 void createAccount() {
 cout << "Enter Account Number: ";
 cin >> accountNumber;
 cin.ignore();
 cout << "Enter Account Holder Name: ";
 getline(cin, name);
 cout << "Enter Initial Balance: ?";
 cin >> balance;
 cout << "\nAccount Created Successfully!\n";
 }
 void deposit() {
 float amount;
 cout << "Enter amount to deposit: ?";
 cin >> amount;
 if (amount > 0) {
 balance += amount;
 cout << "?" << amount << " deposited successfully.\n";
 } else {
 cout << "Invalid deposit amount.\n";
 }
 }
 void withdraw() {
 float amount;
 cout << "Enter amount to withdraw: ?";
 cin >> amount;
  if (amount > 0 && amount <= balance) {
 balance -= amount;
 cout << "?" << amount << " withdrawn successfully.\n";
 } else {
 cout << "Insufficient balance or invalid amount.\n";
 }
 }
 void displayBalance() const {
 cout << "\n--- Account Details ---\n";
 cout << "Account Number : " << accountNumber << endl;
 cout << "Account Holder : " << name << endl;
 cout << "Current Balance : ?" << balance << endl;
 }
};
int main() {
 BankAccount myAccount;
 int choice;
 myAccount.createAccount();
 do {
 cout << "\n--- Bank Menu ---\n";
 cout << "1. Deposit\n";
 cout << "2. Withdraw\n";
 cout << "3. Display Balance\n";
 cout << "4. Exit\n";
 cout << "Enter your choice: ";
 cin >> choice;
 switch (choice) {
 case 1:
 myAccount.deposit();
 break;
 case 2:
 myAccount.withdraw();
 break;
 case 3:
 myAccount.displayBalance();
 break;
 case 4:
 cout << "Thank you for using our banking system.\n";
 break;
 default:
 cout << "Invalid choice. Please try again.\n";
 }
 } while (choice != 4);
 return 0;
}