June 2018
Beginner
722 pages
18h 47m
English
Content preview from Introduction to Programming
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Preferring aggregation over inheritance
Those who worked on real-life projects know that the requirements can change at any moment. In the case of our project, even before the second iteration was completed, new methods had to be added to the Car and Truck interfaces, while speed calculation grew in its own project. The programmers who worked on the implementation of the interfaces and those working on the speed calculation started to change the CarImpl, TruckImpl, and VehicleImpl files.
Not only that, but another project decided to use our speed calculation functionality, but they wanted to apply it to other objects, not cars and trucks. That is when we realized that we need to change our implementation in favor of aggregating the functionality ...
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