Day 4 Lesson Plan

Discussion of inheritance and composition

• OOP Extension mechanisms

Reading

• Watch Function Structure video selected parts
• Read Function Structure notes
• Optional read: Clean Code, chapter 3
• Points to get:
  • How many arguments should functions have?
  • Why should we avoid boolean arguments to functions?
  • What does the stepdown rule say?
  • What does the command-query separation rule say?
  • What does the tell, don’t ask rule say?
  • What are function side-effects?
  • What is temporal coupling?
• Read Code Smells