Abstract MyBMI Class

What is an abstract class?

An abstract class is like a blueprint. You can’t create objects directly from it. Instead, it’s meant to be extended (inherited) by other classes. It can contain:

• Regular methods (with code inside)

• Abstract methods (just method headers, no code)

You use an abstract class when you want every subclass to follow the same structure, but let them implement certain details differently.

In our case, both ImperialUnit and MetricUnit will extend MyBMI, and they will each calculate BMI using different height units. So we’ll make sure they both inherit common data (like name and weight) and both are forced to implement their own way of calculating BMI.