Additional Notes
How would you explain an interface’s role in a Java interview?
Track: Java
Topic: Core Java
Focus: Upcasting and Dynamic Dispatch
Java: Upcasting and Dynamic Dispatch
Answer
Interfaces define a contract that implementing classes must follow.
An interface in Java specifies methods that a class must implement, providing a way to achieve abstraction and multiple inheritance-like behavior. For instance, an `Order` interface might declare a `process()` method that all order types must implement, such as `OnlineOrder` or `StoreOrder`.
An interface in Java specifies methods that a class must implement, providing a way to achieve abstraction and multiple inheritance-like behavior. For instance, an `Order` interface might declare a `process()` method that all order types must implement, such as `OnlineOrder` or `StoreOrder`.
Topics: Core Java Java Upcasting and Dynamic Dispatch