‫Hello my friends, and welcome back.
‫In this section we're going to learn about Kotlin collections.
‫In Kotlin, collections are used to store and manipulate groups of related data elements.
‫Kotlin provides a rich set of collection classes and functions in its standard library that make it
‫easier to work with collections, whether they are lists, sets, maps, or other data structures.
‫Collections in Kotlin are part of the Kotlin Standard library and are designed to be concise and efficient.
‫Kotlin's collection framework can be categorized into two main types immutable collections and immutable
‫collections.
‫Immutable collections are read only collections, meaning that their elements cannot be modified after
‫they are created.
‫They are designed for situations where you need to ensure that the data remains unchanged.
‫Some common immutable collection types in Kotlin includes list, set and map.
‫List represents an ordered collection of elements.
‫Set represent an unordered collection of unique elements.
‫Map represents a collection of key value pairs.
‫It associates keys with values, allowing you to perform lookups based on keys.
‫While immutable collections are collections that can be modified after creation.
‫You can add, remove, or update elements in these collections.
‫Some common immutable collection types in Kotlin include mutable list, mutable set, and mutable map.
‫Mutable set represents a mutable list where you can modify the elements and their order.
‫Mutable set represents a mutable set where you can add and remove elements.
‫Mutable map represents a mutable map where you can add, remove, and update key value pairs.
‫Kotlin provides a rich set of functions for working with collections such as map, filter, reduce,
‫and many others.
‫These functions allow you to perform common operations on a collection in a concise and expressive manner,
‫often using lambda expressions.
‫This functional programming style is a powerful feature of Kotlin, making it easier to work with collections
‫and perform transformations and operations on their elements.
‫So Kotlin's collection framework, combined with its expressive syntax and functional programming features,
‫makes it a powerful language for working with collections in a concise and efficient way.
‫Now let's move and learn about these collections.