Provide methods to raise faculty and chair’s salary.

Implement (write code) a set of classes for a school.

• For all employees, name, address, employee ID (a unique integer between 1000 to 99999) needs to be recorded.
• Provide a method to return the total number of employees by using static member variables and method.
• The following table shows details of each kind of employee.

Each kind of employee class needs to provide a method to calculate and return monthly payment amount.

Provide methods to raise faculty and chair’s salary.

Then, design a class which can maintain all employees. This class needs to use an array (size 9000) to store all three kind of employees.

• a method, pay, to pay every employee by calculating current month salary;

Note: use object-oriented design properly.