Tata Consultancy Services
Fait partie de Tata Group
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Question d’entretien chez Tata Consultancy Services
What is the difference between an abstract class and an interface in Java?
Réponse à la question d'entretien
Utilisateur anonyme
4 déc. 2025
Abstract Class • Can have both abstract & non-abstract methods. • Can have constructors. • Supports single inheritance only. • Can have variables with any access modifier. • Interface • By default all methods are abstract (until Java 8). • No constructors. • Supports multiple inheritance. • Variables are public, static, and final by default.