write a C++ program. Create a class called SavingsAccount. The class should have a static variable named, annualInterestRate, to store the annual interest rate for all account holders. Each object of the class should contain a private instance variable named, savingsBalance, indicating the amount the saver currently has on deposit. Write functions to perform the following: • calculateMonthlyInterest – calculates the monthly interest and adds it to the balance. • depositAmount – allows the customer to deposit money into the account (thereby increasing the balance. Do not accept negative amount. • withdrawAmount – allows the customer to withdraw money from the account (thereby decreasing the balance. Do not accept negative amount. • modifyInterestRate (static) – allows the bank to change the annual interest rate. Accept only floating-point values between 2 and 5. • displayAccount – prints the variable, savingsBalance Write a test class named Program11 to test the SavingsAccount class. Instantiate two objects, saver1 and saver2, with balances of $2000.00 and $3000.00, respectively. Set the annual interest rate to 4%, then calculate the monthly interest for each of the 12 months, starting with January, and print the new balance, at the end of each month, for both savers. Deposit $1500.00 to saver1’s account and withdraw $550.00 from saver2’s account. Next change the annual interest rate to 5%, calculate the next month’s interest and print the new balance for both savers. No input, processing or output should happen in the main function. All work in the test class should be delegated to other functions in the class. Include the recommended minimum documentation for each function. All functions not indicated as static should be non-static. Every function in your program should be limited to performing a single, well-defined task, and the name of the function should express that task effectively.
write a C++ program. Create a class called SavingsAccount. The class should have a static variable named, annualInterestRate, to store the annual interest rate for all account holders. Each object of the class should contain a private instance variable named, savingsBalance, indicating the amount the saver currently has on deposit.
Write functions to perform the following:
• calculateMonthlyInterest – calculates the monthly interest and adds it to the balance.
• depositAmount – allows the customer to deposit money into the account (thereby
increasing the balance. Do not accept negative amount.
• withdrawAmount – allows the customer to withdraw money from the account (thereby
decreasing the balance. Do not accept negative amount.
• modifyInterestRate (static) – allows the bank to change the annual interest rate.
Accept only floating-point values between 2 and 5.
• displayAccount – prints the variable, savingsBalance
Write a test class named Program11 to test the SavingsAccount class. Instantiate two objects, saver1 and saver2, with balances of $2000.00 and $3000.00, respectively. Set the annual interest rate to 4%, then calculate the monthly interest for each of the 12 months, starting with January, and print the new balance, at the end of each month, for both savers.
Deposit $1500.00 to saver1’s account and withdraw $550.00 from saver2’s account. Next change the annual interest rate to 5%, calculate the next month’s interest and print the new balance for both savers.
No input, processing or output should happen in the main function. All work in the test class should be delegated to other functions in the class. Include the recommended minimum documentation for each function.
All functions not indicated as static should be non-static.
Every function in your program should be limited to performing a single, well-defined task, and the name of the function should express that task effectively.
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