What is the mutableSetOf() method in Kotlin?
The mutableSetOf() method in Kotlin is used to create a mutable set. A mutable set is a set that allows both read and write operations.
Syntax
The mutableSetOf() method can be declared as shown below:
fun <T> mutableSetOf(vararg elements: T): MutableSet<T>
elements: The elements to be added to the set.
Return value
The mutableSetOf() method returns a mutable set containing the specified elements.
Example
Consider the code snippet below, which demonstrates the use of the mutableSetOf() method.
fun main(args: Array<String>) {val set1 = mutableSetOf("aa", "bb", "cc")println("set1: " + set1)}
Explanation
The mutableSetOf() method is used in line 3 to create a mutable set of the three elements declared as parameters.