11.7. SOLID Principles in OOP

Try these first

1. 1.

   Define the Single Responsibility Principle.

   Hint

   Think about responsibilities of a class.

2. 2.

   What does the Open/Closed Principle encourage?

   Hint

   Consider how to add functionality without breaking existing code.

3. 3.

   What does the Single Responsibility Principle state?

   • A class can do multiple things
   • A class should do one thing
   • A class should inherit from many others

   Hint

   Focus on the term 'Single'.

4. 4.

   True or False: The Open/Closed Principle allows modifying existing code.

   • True
   • False

   Hint

   Remember what 'closed for modification' means.

5. 5.

   Design a class that adheres to the SOLID principles and explain how each principle applies.

   Hint

   Consider the separation of concerns and abstraction.

6. 6.

   Explain a recent project you undertook. Which SOLID principles did you apply, and what improvements did they bring?

   Hint

   Think about design patterns and code maintainability.