Answer
A contract that defines method signatures without implementation.
A class must implement all the interface members.
interface IAnimal { void Speak(); }
Quick Answer
An interface is a contract — any class that implements it must have these methods and properties. No implementation, just signatures. This lets you write code against the interface rather than a specific class, making things easy to swap, test, and extend.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ