Employee class hierarchy

• Recall the inheritance hierarchy of employee classes shown in lecture.
• Each type of employee extends a common base class Employee and has the methods getHours, getSalary, getVacationDays, and getVacationForm.
• For the next several exercises you will add classes to this inheritance hierarchy.
• To do this, either solve the problems in Practice-It!, or download each of these files to your machine: Employee, Secretary, Lawyer, and LegalSecretary.