Practice Design Patterns In Java (11) - Design Patterns in Java

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9 questions

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6 sample questions

Question 1.
What is a design pattern?
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Think about templates and problems.
Question 2.
Name one benefit of using design patterns.
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Consider clarity and maintenance.
3Question 3.
What is the primary use of the Singleton pattern?
- Allows multiple instances
- Ensures single instance
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Think about instances.
4Question 4.
True or False: Design patterns are specific implementations rather than templates.
- True
- False
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Consider the meaning of template.
Question 5.
Design a minimal Java application using both the Singleton and Factory Method patterns. Explain its design choices.
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Consider how you can maintain a single logging instance.
Question 6.
Create a Java program that implements the Observer pattern to notify users of a change in a temperature reading.
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Think about how to notify multiple clients when a state changes.

5 more questions in this section. Enroll free to practise them all.