Arrays
Explore Kotlin arrays to understand their fixed-length sequential storage and how they differ from lists and sets. Learn to create arrays using arrayOf and manipulate elements by accessing indexes.
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Like lists and sets, arrays store multiple values in a linear data structure.
What is an Array?
An array is a basic data structure in all programming languages. It stores multiple elements by placing them consecutively in memory. This structure is represented in the following illustration:
![Array data structure. Elements are stored contiguously in memory and index starts at zero. [Source: https://beginnersbook.com/2018/10/data-structure-array/]](/api/collection/6235480473468928/5555126448160768/page/5803281861312512/image/6116940739248128?page_type=collection_lesson&collection_token=undefined&get_optimised=true "Array data structure. Elements are stored contiguously in memory and index starts at zero. [Source: https://beginnersbook.com/2018/10/data-structure-array/]")
Array data structure. Elements are stored contiguously in memory and index starts at zero. [Source: https://beginnersbook.com/2018/10/data-structure-array/]