Java

public class Bank Account private double balance public Bank Account balance 0; public BankAccount double acctBalance) balance acctBalance; public void deposit (double amount) balance amount; public void withdraw (double amount) balance amount; public double getBalance return balance public clasa SavingsAccount extends BankAccount private double interestRatei Public SevingaAccount implementation not shown Y public savingsAccounts (double acctBalance, double rate) implementation not shown k/ public void addInterest //Add interest to balance t impleaentation not shown public class checkingAccount extends BankAccount private static final double FEE 2.0 private static final double MIN BALANCE 50.0; public CheckingAccount double acctBalance) implexentation not shown 1 FEE of $2 deducted if withdrawal leaves balance less than MIN BALANCE. Allows for negative balance. public void withdraw (double arnount) implementation not shown