June 2018
Intermediate to advanced
316 pages
6h 34m
English
Content preview from Mastering High Performance with Kotlin
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Maps
A map is a data structure that stores data in the form of key/value pairs. The map data structure is also known as an associative array. This is an extremely powerful data structure that provides you fast access to a value associated with a unique key.
A map data structure supports operations such as:
- get(key: K): V?
- contains(key: K) : Boolean
- put(key: K, value: V): V?
The following diagram shows the operation:
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