Part 1: implement a superclass bankaccount that has the following fields and methods.

fields:
string firstname
string lastname
int accountid
double balance

methods:
constructor(): initialize balance to zero
deposit() – will accept a single value double parameter; the parameter value is added to the existing balance
withdrawal() – accepts a single value double dollar amount; the parameter value is subtracted from the existing balance
setters and getters for firstname, lastname, and accountid
getbalance() getter to return the balance
accountsummary() – prints all account information

part 2: implement a checkingaccount class that inherits from the bankaccount class.
has an interest rate attribute
allows overdraft withdrawals and charges a $30 free
methods:
processwithdrawal() – will display a negative balance that includes $30 overdraft fee and denotes that a fee has been accessed
displayaccount() – should display all superclass attributes and provide additional interest rate

ensure that your program has the two required classes and a test class.