Top "Interface" questions

What is the difference between an interface and abstract class?

What exactly is the difference between an interface and abstract class?

oop interface abstract-class

Implements vs extends: When to use? What's the difference?

Please explain in an easy to understand language or a link to some article.

java inheritance interface extends implements

Interface vs Abstract Class (general OO)

I have had recently two telephone interviews where I've been asked about the differences between an Interface and an Abstract …

oop interface abstract-class

How do you declare an interface in C++?

How do I setup a class that represents an interface? Is this just an abstract base class?

c++ inheritance interface abstract-class pure-virtual

How should I have explained the difference between an Interface and an Abstract class?

In one of my interviews, I have been asked to explain the difference between an Interface and an Abstract class. …

java oop inheritance interface abstract-class

Type List vs type ArrayList in Java

(1) List<?> myList = new ArrayList<?>(); (2) ArrayList<?> myList = new ArrayList<?>(); I understand that with (1), …

java list interface decoupling

Difference between abstract class and interface in Python

What is the difference between abstract class and interface in Python?

python interface abstract-class

Multiple Inheritance in C#

Since multiple inheritance is bad (it makes the source more complicated) C# does not provide such a pattern directly. But …

c# interface multiple-inheritance

Why are interface variables static and final by default?

Why are interface variables static and final by default in Java?

java interface

Java Pass Method as Parameter

I am looking for a way to pass a method by reference. I understand that Java does not pass methods …

java interface