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6 Lists and type checking

  1. If needed, retrieve the OOP Company project up to chapter 5 from DLO. It contains the classes as you left them at the end of chapter 5.

  2. Keep the array with four departments as in your Main method.

  3. Create a List<Person> named people.

  4. Fill the list as follows: 

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    people.Add(new Employee("Mark", "Den Haag", departments[2], 10000));
people.Add(new Employee("Angelique", "Rotterdam", departments[2], 5000));
people.Add(new Employee("Caroline", "Delft", departments[1], 4000));
people.Add(new Freelancer("Klaas", "Diemen", departments[3], 50.00));
people.Add(new Freelancer("Ronald", "Zaandam", departments[0], 80.00));
people.Add(new Freelancer("Jannie", "Utrecht", departments[0], 60.00));
people.Add(new Freelancer("Anne", "Zwolle", departments[0], 40.00));

  5. Use a for-loop with is and casting to hire all freelancers in the list for 320 hours.

  6. Use a for-loop and the existing ShowYearlyIncome() method to get the following output: 

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    Mark earns 130000,00 per year
Angelique earns 65000,00 per year
Caroline earns 48000,00 per year
Klaas earns 16000,00 per year
Ronald earns 25600,00 per year
Jannie earns 19200,00 per year
Anne earns 12800,00 per year