Mastering Java: The Ultimate Quiz for 'Thinking in Java'

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Want to excel in Java? Test your knowledge with our ultimate quiz based on 'Thinking in Java'. Engage with multiple-choice questions and in-depth explanations. Boost your understanding and prepare for your exam with confidence.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is inheritance used for in object-oriented programming?

To create a new class by adding new methods or overriding existing ones
To ensure all classes follow the same interface
To duplicate classes without modification
To facilitate faster execution of program code

The correct answer is: To create a new class by adding new methods or overriding existing ones

Inheritance is used in object-oriented programming to create a new class that inherits the properties and methods of an existing class. This allows for code reusability and makes it easier to make changes to the parent class without having to modify each individual child class. Option B is incorrect because interfaces are used for ensuring classes have certain methods, not inheritance. Option C is incorrect because inheritance is meant to avoid duplicating code. Option D is incorrect because inheritance does not have any direct impact on the execution speed of a program.