How to Get Length of a Set in Kotlin

How to Get Length of a Set in Kotlin ?

To get the length of a set in Kotlin, you can use the size property of the set.

In this example,

We create a set named set1 with some elements.
We use the size property of the set object set1 to get the number of elements in the set.
The size property returns the length or size of the set.
Finally, we print the size of the set to standard output.

fun main() {
    val set1 = setOf("apple", "banana", "cherry")
    val length = set1.size
    println("Length of set1 is: $length")
}

Length of set1 is: 3

In this example,

We create an empty set named emptySet.
We use the size property of the set object emptySet to get the number of elements in the set.
Since the set is empty, the size property returns 0.
Finally, we print the size of the empty set to standard output.

fun main() {
    val emptySet = emptySet<String>()
    val length = emptySet.size
    println("Length of emptySet is: $length")
}

Length of emptySet is: 0

In this tutorial, we learned How to Get Length of a Set in Kotlin language with well detailed examples.