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// You are tasked with creating a simple banking system using Object-Oriented Programming (OOP) principles. Implement the following classes and their relationships:

// BankAccount (Superclass)

// Attributes:

// accountNumber (String)

// accountHolderName (String)

// balance (double)

// Methods:

// deposit(double amount): Adds the specified amount to the account balance.

// withdraw(double amount): Subtracts the specified amount from the account balance, but only if there are sufficient funds.

// getBalance(): Returns the current account balance.

// SavingsAccount (Subclass of BankAccount)

// Additional attribute:

// interestRate (double)

// Methods:

// applyInterest(): Adds interest to the balance based on the interest rate.

// CheckingAccount (Subclass of BankAccount)

// Additional attribute:

// overdraftLimit (double)

// Methods:

// Override withdraw(double amount) to allow withdrawals that exceed the balance but not the overdraft limit.

// Bonus Task:

// Create a Bank class that contains a list of BankAccounts. Add methods to create new accounts, perform deposits and withdrawals, and display account details.

// Implement the relationships between the classes, use encapsulation, and test your system by creating instances of SavingsAccount and CheckingAccount.

public class Bank {

public static void main(String[] args) {

}

}

class BankAccount{

String accountNumber,accounHolderName,accounName;

double balance;

double deposit(double amount){

return balance +=amount;

}

double withdraw(double amount){

return balance -=amount;

}

public double getBalance() {

return balance;

}

class savingAccount extends BankAccount{

double interestRate;

double applyInterest(){

return balance+=(balance*interestRate);

}

}

class checkingAccount extends BankAccount{

double overdraftLimit;

double withdraw(double amount){

if(amount<=overdraftLimit){

balance-=amount;

}

return amount;

}

}

}