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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is an interface in Java?
💡 Hint: Think about what methods are defined but not completed in an interface.
Question 2
Easy
Can a class implement multiple interfaces?
💡 Hint: Consider the flexibility interfaces provide.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is true about interfaces in Java?
- They can contain concrete methods
- They can be instantiated
- They define a contract for classes
💡 Hint: Think about the purpose of defining interfaces.
Question 2
True or False: A class can implement multiple interfaces in Java.
- True
- False
💡 Hint: Recall the benefits of using interfaces.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a Java interface named Employee, specifying methods for getting employees' details and programming roles. Then implement this interface in a class named SoftwareEngineer.
💡 Hint: Think about what kind of details an employee might have.
Question 2
Discuss how you would design an interface for a generic logging mechanism that different classes can implement. Consider which methods are essential.
💡 Hint: Consider logging types you often use in applications.
Challenge and get performance evaluation