How to add an Item to a Set in Kotlin - Step by Step Examples



How to add an Item to a Set in Kotlin ?

Answer

To add an item to a set in Kotlin, you can use the add method.



✐ Examples

1 Add an Item to a Set

In this example,

  1. We have an existing set named mySet.
  2. We use the add method to add a new item to mySet.

Kotlin Program

fun main() {
    var mySet = mutableSetOf("apple", "banana", "orange")
    println("Set before adding item: $mySet")
    mySet.add("grape")
    println("Set after adding item: $mySet")
}

Output

Set before adding item: [apple, banana, orange]
Set after adding item: [apple, banana, orange, grape]

2 Add an Integer to a Set

In this example,

  1. We have an existing set named numberSet.
  2. We use the add method to add a new integer to numberSet.

Kotlin Program

fun main() {
    var numberSet = mutableSetOf(1, 2, 3, 4, 5)
    println("Set before adding integer: $numberSet")
    numberSet.add(6)
    println("Set after adding integer: $numberSet")
}

Output

Set before adding integer: [1, 2, 3, 4, 5]
Set after adding integer: [1, 2, 3, 4, 5, 6]

Summary

In this tutorial, we learned How to add an Item to 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 ?