Practice What is an Interface? - 2.1 | Chapter 12: Inheritance, Interface, and Polymorphism | ICSE Class 12 Computer Science
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Knowledge

2.1 - What is an Interface?

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define an interface in Java.

💡 Hint: Start with the keyword 'interface'.

Question 2

Easy

What type of methods does an interface contain?

💡 Hint: Recall that these methods are just signatures without bodies.

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 does an interface in Java allow a class to do?

  • A. Inherit properties from multiple classes
  • B. Define a set of methods for a class to implement
  • C. Create new data types

💡 Hint: Focus on the contract aspect of interfaces.

Question 2

True or False: A class can implement multiple interfaces in Java.

  • True
  • False

💡 Hint: Think about how different functionalities can be mixed.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Create a Java program with an interface called 'Playable' that includes a method 'play()'. Then implement this interface in two classes: 'Guitar' and 'Piano'. Show how each class implements the method differently.

💡 Hint: Focus on creating the interface and think about two musical instruments you can use.

Question 2

Discuss how using interfaces can lead to better software design. Provide at least two examples of their advantages in real-world applications.

💡 Hint: Reflect on the principles of software engineering and how they apply to interface usage.

Challenge and get performance evaluation