Extends vs Implements: Once you know the basic structure of a Java class, know inheritance with concrete classes and abstract classes, know to inherit interfaces, it is the time for both extends and implements where you inherit classes and interfaces to one class. For example, you have two classes (one may be abstract and the …
In Java implements is a keyword. Where to use implements keyword in Java coding? We know Java does not support multiple inheritance. That is, one class cannot extend or inherit two classes. That is, following code does not work. class Bird { } class Animal { } public class Ostrich extends Bird, Animal { } …
An interface in Java gives a template of methods where the implementation or body for the methods is missing. The body or implementation is given by the sub classes in the way they think most appropriate. For example, I would like to prepare curry to take in my dinner. Imagine there is an interface as …
