java Project

Issues Bug: Checking account fund transfer only updates the destination account The source account's balance is not updated following a transfer. Feature: Savings account Implement a savings account (in addition to the existing checking account). Savings accounts have the same features as checking accounts, and additionally provide a method to apply interest over some number of years. Each savings account should allow for a unique interest rate, compounded once annually. A formula for calculating annual compound interest is as follows: where S = value after t periods P = principal amount (initial investment) j = annual nominal interest rate (not reflecting the compounding) n = number of times the interest is compounded per year t = number of years the money is borrowed for As an example, suppose an amount of $1500.00 is deposited in a bank paying an annual interest rate of 4.3%, compounded annually. Then the balance after 6 years is found by using the formula above, with P = 1500, j = 0.043 (4.3%), n = 1, and t = 6: S = 1500 (1 + 0.043) 6 = 1931.07 So, the balance after 6 years is approximately 1938.84. The amount of interest received can be calculated by subtracting the principal from this amount. BONUS: Savings accounts cannot be withdrawn from directly -- they should only support deposits and transfers.