Tata Consultancy Services
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Question d’entretien chez Tata Consultancy Services
They asked: "Can you explain the difference between an abstract class and an interface in Java?"
Réponse à la question d'entretien
Utilisateur anonyme
18 juil. 2025
I explained that an abstract class can have both abstract and non-abstract methods, and it supports default behavior. An interface, on the other hand, is completely abstract (before Java 8) and is used to achieve full abstraction. I also mentioned that Java allows multiple interfaces to be implemented, which helps in resolving the issue of multiple inheritance.