Computer scienceFundamentalsEssentialsSoftware constructionIntroduction to Design Principles and SOLID

Coupling and cohesion

Code improvement

Report a typo

You are working on an application, which simulates car creation and driving. This app constructs a car from different parts and gives it to a driver. Here's a part of the application in pseudocode:

class Engine is ...
class Wheel is ...

class Car is 
  Engine eng = new Engine()
  Wheel whl = new Wheel()

  constructor Car() is
    this.eng = eng
    this.whl = whl

  method drive() is ...


class Driver is 
  Car car = new Car()
  car.drive()

How can you improve it?

Select one or more options from the list

Achieve loose coupling by introducing interfaces

Remove driver class

Introduce different car classes that you need to call inside the driver class

Remove engine and wheel classes to lower cohesion

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