Core Java · interview question

What happens if a class implements two interfaces that have methods with the same signature?

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The class must implement the method once.The class must implement the method twice.The class will not compile.A compile-time error occurs unless the method bodies are identical.

Answer and explanation

Correct answer

A. The class must implement the method once.

Why

In Java, if a class implements two interfaces with methods that have the same signature, it only needs to provide a single implementation of the method. This allows the class to fulfill both interface contracts with one method body.

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What happens if a class implements two interfaces that have methods with the same signature?

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