Linked Questions

I'm having trouble understanding why I should use interfaces, and how I should integrate them into my current project. I use a lot of polymorphism already, and I usually see polymorphism and ...

can you please explain why really i need use interface instead of directly declaring and implementing method inside of Class. Above i have two example. Class with interface and without. Thanks in ...

I have created an interface Animal and make function makeSound. Now I implements Animal in Cat and Dog class and echo something from makeSound function. Now I am confused why I need to create ...

It's a rather theoretical question, but what kind of interfaces does java have? For example, I know two of them: marker interfaces (e.g. Serializable, no methods defined, is similar to class-level ...

I see people creating an instance of some class and assigning it to a reference variable of type interface that the class implements. interface A { void display(); } public class InterfaceObject ...

I still have some confusion about this thing. What I have found till now is (Similar questions have already been asked here but I was having some other points.) Interface is collection of ONLY ...

I often hear/read about interfaced based programming but I am not exactly clear on what that really means. Is interfaced based programming an actual stand alone topic that actually has books written ...

I was reading Dart's documentation and I was a little bit confused, maybe because I'm coming from Ruby, as to how to use interfaces. Of course, interfaces are not unique to Dart and there are quite a ...

Instead of writing abstract methods in interfaces, why not directly implement those methods in class?

Here is an answer to "How do I instantiate a Queue object in java?", Queue is an interface. You can't instantiate an interface directly except via an anonymous inner class. Typically this ...

All the methods declared in interfaces are abstract and we have to re-write the method with signature and body in the class that implements the interface. So what's the point of using the interface?

I'm trying to learn about clean architecture. I've a question.According to this article Making a network request is one of the most common tasks an Android app might perform. The News app needs to ...

In trying to build a scientific Python package, I'm aiming to separate key functionality into different .py files for clarity. Specifically, it seems logical to me to split complicated numerical ...

Possible Duplicate: Interfaces: Why cant I seem to grasp them? What is the purpose of interfaces in C#? How would they enable extendable,modular design in c#,Java? As far as my experience with ...

This question is in continuation to my previous post located here. Since there is no way to post code sample again without editing your original post, I am starting a new post. And also, this contains ...