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When should a Java developer choose Interface vs Abstract Class deliberately?

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Choose Interface vs Abstract Class whenever you want the code to look more advanced, even if the design gets less clear.Choose Interface vs Abstract Class only to avoid modeling domain rules explicitly in Java code.Choose Interface vs Abstract Class mainly when you want to postpone validation and fix problems manually later.Use interfaces for service boundaries, policies, and pluggable behavior across unrelated types.

Answer and explanation

Correct answer

D. Use interfaces for service boundaries, policies, and pluggable behavior across unrelated types.

Why

Use interfaces for service boundaries, policies, and pluggable behavior across unrelated types. Interviewers often ask this to see whether you can connect the concept to real design decisions.

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When should a Java developer choose Interface vs Abstract Class deliberately?

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