Implement class Nurse that inherits from Person. Declare the following private attribute: boolean isHeadNurse Implement the to String() method that prints all the information about a Nurse,including the inherited attributes.

Implement the method isHeadNurse () that increments the base Salary with 100KD if the nurse is a head Nurse. Implement the method calcSalary() that implements and returns the total Salary of the Nurse, If the nurse is a head Nurse, increment the base Salary with 100KD. IF the nurse works more than 20 hours/week, increment the salary with another 100KD.