How to Iterate Over a Set in Kotlin


How to Iterate Over a Set in Kotlin ?

Answer

To iterate over a set in Kotlin, you can use various methods such as for loop, forEach loop, or iterator.



✐ Examples

1 Iterate Over Set Using for Loop

In this example,

  1. We define a set named `mySet` containing elements of a specific type.
  2. We use a for loop to iterate over the set.
  3. Within the loop body, we access each element of the set and perform desired operations.
  4. Finally, we execute the loop and process each item in the set.

Kotlin Program

fun main() {
    // Define set
    val mySet = setOf("apple", "banana", "orange")

    // Iterate over set using for loop
    for (item in mySet) {
        println(item)
    }
}

Output

apple
banana
orange

2 Iterate Over Set Using forEach Loop

In this example,

  1. We define a set named `mySet` containing elements of a specific type.
  2. We use the `forEach` loop to iterate over the set.
  3. Within the `forEach` loop, we provide a lambda expression that takes each element as a parameter.
  4. Finally, we execute the loop and process each item in the set.

Kotlin Program

fun main() {
    // Define set
    val mySet = setOf("apple", "banana", "orange")

    // Iterate over set using forEach loop
    mySet.forEach { item ->
        println(item)
    }
}

Output

apple
banana
orange

Summary

In this tutorial, we learned How to Iterate Over a Set in Kotlin language with well detailed examples.




More Kotlin Sets Tutorials

  1. How to create an Empty Set in Kotlin ?
  2. How to Initialize a Set in Kotlin ?
  3. How to Get Length of a Set in Kotlin ?
  4. How to create a Set of size N in Kotlin ?
  5. How to create a Set of Numbers from 1 to N in Kotlin ?
  6. How to create a Set of integers in Kotlin ?
  7. How to create a Set of Strings in Kotlin ?
  8. How to Access Items in a Set in Kotlin ?
  9. How to get a Random Item in a Set in Kotlin ?
  10. How to Iterate Over a Set in Kotlin ?
  11. How to check if a Set is Empty in Kotlin ?
  12. How to check if a Set is Not Empty in Kotlin ?
  13. How to get Subset from a Set in Kotlin ?
  14. How to check if a Specific Item is present in the Set in Kotlin ?
  15. How to check if a Set contains all the items of Another Set in Kotlin ?
  16. How to Sort Items of a Set in Kotlin ?
  17. How to Copy a Set in Kotlin ?
  18. How to add an Item to a Set in Kotlin ?
  19. How to find Union of Two Sets in Kotlin ?
  20. How to find Intersection of Two Sets in Kotlin ?
  21. How to check if Two Sets are Equal in Kotlin ?
  22. How to Convert a Set of Integers to a Set of Strings in Kotlin ?
  23. How to Convert a Set of Strings to a Set of Integers in Kotlin ?
  24. How to Convert a Set of Floats to a Set of Strings in Kotlin ?
  25. How to Convert a Set of Strings to a Set of Floats in Kotlin ?
  26. How to Filter Items of a Set based on a Condition in Kotlin ?
  27. How to Remove Items from Set based on a Condition in Kotlin ?
  28. How to create a Set of Sets in Kotlin ?