por Have you ever heard what an interface is in Kotlin? If you are not familiar with this context, you should know that it is important knowledge to understand the Kotlin programming language. For this reason, in this article, we tell you what an interface is in Kotlin.
What is Kotlin?
Before getting into what an interface is in Kotlin, it is appropriate to briefly remember what this programming language consists of.
In general, Kotlin not only supports Androidbut is used for systems that support the JVMalso known as the Java virtual machine.
Another relevant fact about Kotlin is that It is part of the object-oriented programming languages. In addition, you should also know that it has the characteristic of being classified as a language of static typingwhich means that the typing check is performed at compile time, rather than at runtime.
In fact, if you want to know other aspects related to Kotlin, You can take a look at the post What is Kotlin? Is it better than Java? on our blog, in which you will be able to learn the main characteristics of this programming language, as well as the differences that exist between Kotlin and Java.
What is an interface in Kotlin?
The first thing we can highlight related to what an interface is in Kotlin is that it refers to a programming element or resource, which has similarities with what is called an abstract class, since they share characteristics.
The difference is that the interfaces they can only have behaviors without using any class propertieswhile abstract classes can have internal properties and, in turn, use them in the method they provide.
Now, you might be looking for a more specific definition of what an interface is in Kotlin. To give you a satisfactory answer regarding this, we can tell you that an interface is like a space to store functions or methodsbut what can’t save states.
What’s more, an interface is a Kotlin resource that allows you to establish behaviors that can be implemented in different classes, so you could think that an interface allows you to share information through unrelated classes, with the purpose of reusing the code. .
In a little simpler words, interfaces are usually definitions of what the class that implements it can do.
How to declare an interface in Kotlin?
Now that you know roughly what an interface is in Kotlin, you may wonder how can you declare an interface. In reality, you should know that it is a procedure that does not have many complications. In fact, The most important thing is to know the keyword, which would be interface. After you specify to the program what you want to declare, just you must establish the abstract methods that you want to store.
Although it is true that declaring an interface is not a very difficult process, it should be noted that, at the same time, it is a concept that can be somewhat frustrating when trying to put it into practice for the first time if you do not have the appropriate knowledge. For this reason, we recommend that you visit official Kotlin documentation, where more technical aspects related to the implementation of interfaces are explained.
Where to continue?
Now that you know what an interface is in Kotlin and how they are declared, as well as having some basics on what this programming language is, It is very likely that you will be interested in knowing much more about the different concepts related to app development and design, especially with the Kotlin programming language.
Therefore, we tell you that at , we are very aware that the topics that are related to application development can be complicated to understand and that they are learned, mainly, by putting them into practice. This is how, to help you in your Mobile development training process, we have created our Full Stack Mobile App Development Bootcamp, which combines theory and practice to facilitate your learning process.
With this bootcamp, you will have the opportunity to learn a lot of fundamental information about what cross-platform app design and development processes are like, as well as iOS and Android fundamentals and various app design guidelines. Likewise, you can learn to work with Apple and Google products such as the Xcode platform, UIKit, Android Studio and many more. In addition, you will become familiar with some of the essential programming languages, such as Swift and Kotlin. Don’t hesitate and start training in something that you are truly passionate about!