27. Design Patterns

Try these first

1. 1.

   What is a design pattern?

   Hint

   Think about solutions used in common software issues.

2. 2.

   Name the three categories of design patterns.

   Hint

   Consider how each type relates to objects and their interactions.

3. 3.

   Which of the following is a benefit of using design patterns?

   • Speed up development
   • Increase complexity
   • Reduce communication

   Hint

   Consider the advantages of established solutions.

4. 4.

   True or False: Anti-patterns are effective solutions.

   • True
   • False

   Hint

   Recall the definition of an anti-pattern.

5. 5.

   Identify an anti-pattern in your previous projects and suggest a design pattern that could have replaced it.

   Hint

   Think about the chaos in your early projects and how you could streamline them.

6. 6.

   Design a simple class structure for a game that utilizes both the Singleton and Observer patterns, and explain your design choices.

   Hint

   Consider how the game might need a singular manager to oversee state changes while notifying multiple elements like score displays.