Unlocking the Power of Kotlin's Built-In Collection Classes

Exploring Kotlin's Built-In Collection Classes

Kotlin is a powerful programming language with several useful features. And one of its most useful features is its ability to work with collection classes. These classes allow you to store and organize data, which can come in handy for a variety of applications. In this article, we’ll take a look at some of the built-in collection classes that can be found in Kotlin.

List

A List is a dynamic data structure used to store a sequence of elements. Each element in a list is referred to as an item, and they are stored and retrieved in the same order that they were added. A List can contain multiple elements of the same type, as well as elements of different types.

Set

A Set is a collection of unique elements. It doesn't allow duplicates, meaning each element has to be unique. This makes it perfect for tasks such as finding the distinct elements in a list of values.

Map

A Map is a collection of key-value pairs. It stores data in the form of a key, which is associated with a value. When looking up an item in a Map, the key is used to locate the associated value. This makes it possible to quickly search for values based on certain criteria.

Conclusion

Kotlin provides several built-in collection classes that make it easy to store and access data. In this article, we looked at three of the most common collection classes: List, Set, and Map. Learning how to effectively use these collection classes can help you take advantage of all the power that Kotlin has to offer.