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3 cards from this section. Quick, good the night before a test.
What does the Singleton Pattern ensure?
Think about managing resources in an application.
Give an example of a use case for structural patterns.
Consider different systems that need to interact.
What is the main benefit of the Singleton Pattern?
Consider the application of a logging service.
True or False: Behavioral patterns do not focus on object communication.
Think about how different parts of a system interact.
You are tasked with designing a messaging system. Describe how you might implement the Observer Pattern.
Think about how emails notify users of new messages.
Consider an online shopping cart application. Identify and discuss the potential use of a Command Pattern.
Reflect on actions you can take in an shopping app.
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