Mastering High Performance with Kotlin

Arrays

An array stores multiple items of the same type in one fixed-size sequence. It's easy to access and modify any element of an array by referencing its index. Arrays are an efficient way of reducing the number of variables and grouping them by logic and type. In Java and Kotlin, a multidimensional array is an array of arrays; it can be used to represent matrices or some figures in space. You can create arrays with different depth levels, but it's hard to manage arrays with more than three levels of depth. 

An array supports operations such as:

• get(index: Int): T
• set(index: Int, value: T): Unit

The algorithms of many data structures ...