Additional Notes
Why use interfaces in Java?
Track: Java
Topic: Core Java
Focus: Code Reading with Related Types
Java: Code Reading with Related Types
Answer
Interfaces define a contract for classes. Frame the concept in practical terms so you can explain it during interview discussion.
Interfaces specify methods a class must implement, ensuring consistency across different classes. For instance, an 'Item' interface might declare 'getPrice()' and 'getDescription()'. Any class implementing 'Item' must provide these methods, enabling polymorphic behavior where objects of different classes can be treated as 'Item' objects.
Interfaces specify methods a class must implement, ensuring consistency across different classes. For instance, an 'Item' interface might declare 'getPrice()' and 'getDescription()'. Any class implementing 'Item' must provide these methods, enabling polymorphic behavior where objects of different classes can be treated as 'Item' objects.
Topics: Code Reading with Related Types Core Java Java