lab.md

Inheritance Lab.

Your task is to model and create a system to store information for employees of a large development company. You should use TDD, inheritance, packages and abstract classes for this.

Create an abstract Employee parent class in a package called staff.

• Employee will have a name, NI number and salary.
• Create Getters for all properties.
• Add a method named raiseSalary with takes in a parameter of type double to increment the salary.
• Add a method called payBonus which returns 1% of the employees salary.
• Don't worry about testing just now until you create the subclasses.

Create a subclass of Employee called Manager in a package called management.

• Create a class for Manager.
• Add a property to store the department name in a property called deptName.
• Create a constructor that includes all the parameters needed for Employee and deptName.
• Add a getter method for deptName.
• Test all methods including raiseSalary and payBonus

Create subclasses of Employee: Developer and DatabaseAdmin in a package called techStaff.

Create 2 new classes for Developer and DatabaseAdmin.

• These should take in the same parameters as Employee and pass them to Employee constructor.
• Again test all methods for both classes.

Create a subclass of Manager called Director in the management package.

• Add a private property to store a double value budget.
• Create a constructor for Director that includes the parameters needed for Manager and the budget parameter.
• Create a getter method for this property.
• Test all methods.

Extensions

Prevent unwanted values

• Prevent a negative value for the raiseSalary method.
• Allow the user to change the Employees name and prevent a null value from being entered.
• Override the payBonus in director to return 2% of their salary.