JAVA Interfaces Online Test

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Instructions:

  • Total number of questions: 10.
  • Time allotted: 10 minutes.
  • Each question carries 1 mark.
  • No negative marks.
  • DO NOT refresh the page.
  • All the best :-)

What You Will Learn:

This Java Interfaces Online Test helps you to Boost your Knowledge in Java. In this test, we cover topics in the form of questions like:
  • Interface definition, implements keyword, and achieving multiple inheritance of types.
  • Implicit modifiers on interface variables (public static final) and abstract methods.
  • Default methods and static methods introduced in Java 8 for backward compatibility.
  • Resolving multiple interface default method conflicts (diamond problem).
  • Marker interfaces (Serializable, Cloneable) without methods.
  • Functional interfaces with a Single Abstract Method (SAM) and @FunctionalInterface.

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