import java.util.Scanner; //abhinavgautam08
import java.util.InputMismatchException;
//abhinavgautam08
class Account {
private int accountNumber;
private String accountHolderName;
private double balance;
private String email;
private String phoneNumber;
public Account(int accountNumber, String accountHolderName, double initialDeposit,
String email, String phoneNumber) {
this.accountNumber = accountNumber;
this.accountHolderName = accountHolderName;
this.balance = initialDeposit;
this.email = email;
this.phoneNumber = phoneNumber;
}
public int getAccountNumber() {
return accountNumber;
}
public void deposit(double amount) {
if (amount > 0) {
balance += amount;
System.out.println("Deposit successful! Current balance: " + balance);
} else {
System.out.println("Deposit amount must be positive.");
}
}
public void withdraw(double amount) {
if (amount <= 0) {
System.out.println("Withdrawal amount must be positive.");//abhinavgautam08
} else if (amount > balance) {
System.out.println("Insufficient balance.");
} else {
balance -= amount;
System.out.println("Withdrawal successful! Current balance: " + balance);//abhinavgautam08
}
}//abhinavgautam08
public void displayAccountDetails() {
System.out.println("\n=== Account Details ===");
System.out.println("AC Number: " + accountNumber);
System.out.println("Holder Name: " + accountHolderName);
System.out.println("Balance: " + balance);
System.out.println("Email: " + email);
System.out.println("Phone: " + phoneNumber);
}
public void updateContactDetails(String email, String phoneNumber) {
if (isValidEmail(email) && isValidPhone(phoneNumber)) {
this.email = email;
this.phoneNumber = phoneNumber;
System.out.println("Contact details updated successfully.");
} else {
System.out.println("Invalid email or phone number format.");
}
}
private boolean isValidEmail(String email) {
return email.contains("@") && email.contains(".");
}
private boolean isValidPhone(String phone) {
return phone.matches("\\d{10}");
}
}
class Main {
// Data storage
private static Account[] accounts = new Account[100];
private static int accountCount = 0;
private static int nextAccountNumber = 1001;
private static Scanner sc = new Scanner(System.in);
// Entry point
public static void main(String[] args) {
System.out.println("Welcome to the Banking Application! CLI");
mainMenu();//abhinavgautam08
}
private static void mainMenu() {
while (true) {
try {
System.out.println("\n=== Main Menu ===");
System.out.println("1. Create a new account");
System.out.println("2. Deposit money");
System.out.println("3. Withdraw money");
System.out.println("4. View account details");
System.out.println("5. Update contact details");
System.out.println("6. Exit");
System.out.print("Enter your choice: ");
int choice = sc.nextInt();
sc.nextLine();
// Switch menu options
switch (choice) {
case 1 -> createAccount();
case 2 -> performDeposit();
case 3 -> performWithdrawal();
case 4 -> showAccountDetails();
case 5 -> updateContact();
case 6 -> {
System.out.println("Exiting... Thank you for using the Banking Application!");
return;//abhinavgautam08
}
default -> System.out.println("Invalid choice. Try again.");//abhinavgautam08
}
} catch (InputMismatchException e) {
System.out.println("Invalid input. Please enter numbers only.");
sc.nextLine();//abhinavgautam08
}
}
}
private static void createAccount() {
System.out.print("Enter account holder name: ");//abhinavgautam08
String name = sc.nextLine();
System.out.print("Enter initial deposit amount: ");
double initialDeposit = sc.nextDouble();
sc.nextLine();
System.out.print("Enter email address: ");
String email = sc.nextLine();
System.out.print("Enter phone number (10 digits): ");
String phone = sc.nextLine();
if (initialDeposit > 0 && email.contains("@") && phone.matches("\\d{10}")) {
accounts[accountCount] = new Account(nextAccountNumber, name, initialDeposit, email, phone);
System.out.println("Account created successfully with Account Number: " + nextAccountNumber);
nextAccountNumber++;
accountCount++;
} else {
System.out.println("Invalid input. Account creation failed.");
}
}
private static void performDeposit() {
Account acc = findAccount();
if (acc != null) {
System.out.print("Enter amount to deposit: ");
double amount = sc.nextDouble();
sc.nextLine();
acc.deposit(amount);
}
}
private static void performWithdrawal() {
Account acc = findAccount();
if (acc != null) {
System.out.print("Enter amount to withdraw: ");
double amount = sc.nextDouble();
sc.nextLine();
acc.withdraw(amount);
}
}
private static void showAccountDetails() {
Account acc = findAccount();
if (acc != null) {
acc.displayAccountDetails();//abhinavgautam08
}
}
private static void updateContact() {
Account acc = findAccount();
if (acc != null) {
System.out.print("Enter new email: ");
String email = sc.nextLine();
System.out.print("Enter new phone number: ");
String phone = sc.nextLine();
acc.updateContactDetails(email, phone);//abhinavgautam08
}
}
private static Account findAccount() {
System.out.print("Enter account number: ");
int accNum = sc.nextInt();
sc.nextLine();//abhinavgautam08
for (int i = 0; i < accountCount; i++) {
if (accounts[i].getAccountNumber() == accNum) {
return accounts[i];//abhinavgautam08
}
}
System.out.println("Account not found.");
return null;
}//abhinavgautam08
}
