por In this post, we talk to you about what is a data class in Kotlin, one of the resources that we can use in this programming language in order to speed up the writing of the code.
What is a data class in Kotlin?
Broadly speaking, what is a data class in Kotlin refers to a way to model data. In fact, we could say that a data class is what in other programming languages is called structsince it is a similar resource that is used to model data.
In fact, data class is considered as a class that contains certain information, but does not implement any methodthat is, it is not intended to perform any action.
It should be noted that, as we have already mentioned, the main objective of data classes is to store values, an aspect that is not at all unusual when programming.
How to declare a data class in Kotlin?
Now, to declare one of these classes, the main thing you must keep in mind and never forget is that the keyword that Kotlin has reserved is “data class”.
Continuing with the above, we can tell you that the basic way to declare what a data class is in Kotlin does not have much complexity. Below you can see an example:
data class Student (val name: String, val age: Int)
Here you can see that the declaration of a data class consists of 3 basic elements. At first, you need to write the corresponding keyword. Following this should be the name of this class. Then, we must specify, in parentheses, the values we want to store.
This is how, taking into account the above, in the example we can see that we have the keyword “data class”, followed by the name “Student”. Then, we find, in parentheses, two immutable variables, one for the name that would be of type string (text string) and another for the age that would be of type int (whole number).
Although it is true that the concept of what a data class is in Kotlin is not very difficult to understand, because it can be summarized as a form of data storage, it is worth noting that, like many concepts related to app development, it implies much more than what appears at first glance. Therefore, we invite you to take a look at the official documentation of this language, with the aim of becoming more familiar with what a data class is in Kotlin.
Where to continue?
Now that you know a little more about what a data class is in Kotlin and how it is implemented, It is very likely that you will be interested in knowing much more about the different concepts related to the development of apps for the Android operating system, especially using the Kotlin programming language.
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