Exercise: Classes - creating mortgage model in Excel

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The answer to the exercise will be included and explained if you attend the Wise Owl course listed below!

Category ==> Advanced VBA  (29 exercises)
Topic ==> Class modules  (3 exercises)
Level ==> Relatively easy
Course ==> Advanced VBA
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The eventual aim of this exercise is to be able to type in and run the following code:

Advanced VBA exercise - Class modules (image 1)

This code relies on the existence of a class called MortgageApplication!

Create a class called MortgageApplication, to contain public variables for the house price, deposit, term and interest rate as above.  When you initialise the class, make sure that you give these public variables sensible values.

Add a read-only property called Mortgage to your class.  Reading this property should:

  • Transfer all of the values from the public variables into named ranges on your worksheet (for example, set the value of the range called HousePrice equal to the value of the public variable in your class called HousePrice)
  • Return the value of cell D14 on the worksheet

Write in the CalculateMortgage macro as above, and check that it works!

Save this file as House Price Solution, then close it down.

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