Tata Consultancy Services
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Domanda di colloquio di Tata Consultancy Services
Explain the difference between an interface and an abstract class in Java and when you would use each one.
Risposta di colloquio
Anonimo
5 mar 2026
I explained that an interface defines a contract that a class must implement, while an abstract class can contain both abstract and concrete methods. I also mentioned that a class can implement multiple interfaces but can only extend one abstract class.