Test your knowledge on Java interfaces with this quiz! From understanding their purpose in achieving abstraction and multiple inheritance, to knowing the latest updates on default and static methods, this quiz covers it all. Whether you're a beginner or an experienced Java developer, challenge yourself with questions on interfaces and their implementation in Java programming. Keywords such as Java, interfaces, abstraction, inheritance, and default methods are included, so get ready to put your Java skills to the test!

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@UpscaleChrysoprase

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Questions and Answers

Which of the following is true about interfaces in Java?

They provide total abstraction

What is the purpose of using interfaces in Java?

To achieve abstraction and multiple inheritance

Which of the following is a new feature introduced in Java 8 for interfaces?

Private methods

Study Notes

An interface in Java is a blueprint of a class with static constants and abstract methods.
It is used to achieve abstraction and multiple inheritance in Java.
Interfaces cannot be instantiated and represent the IS-A relationship.
Since Java 8, interfaces can have default and static methods.
Since Java 9, interfaces can have private methods.
Interfaces are declared using the interface keyword and provide total abstraction.
A class that implements an interface must implement all its methods.
Multiple inheritance is possible through interfaces in Java.
Java 8 introduced default and static methods in interfaces.
Serializable, Cloneable, and Remote are examples of marker or tagged interfaces.