How to check if a Specific Item is present in the Set in Kotlin - Step by Step Examples

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How to check if a Specific Item is present in the Set in Kotlin ?

Answer

To check if a specific item is present in a Set in Kotlin, you can use the contains method.

✐ Examples

1 Check if Item is Present

In this example,

We define a Set named mySet containing elements of a specific type.
We use the contains method of the Set to check if a specific item is present.
The contains method returns true if the item is present in the Set, otherwise it returns false.
Finally, we print the result to standard output.

Kotlin Program

fun main() {
    // Define Set with items
    val mySet = setOf("apple", "banana", "orange", "grape", "melon")

    // Check if item is present
    val item = "banana"
    val isPresent = mySet.contains(item)

    // Print result
    println("Is $item present in the Set? $isPresent")
}

Output

Is banana present in the Set? true

2 Check if Item is Not Present

In this example,

We define a Set named mySet containing elements of a specific type.
We use the contains method of the Set to check if a specific item is not present.
The contains method returns false if the item is not present in the Set.
Finally, we print the result to standard output.

Kotlin Program

fun main() {
    // Define Set with items
    val mySet = setOf("apple", "banana", "orange", "grape", "melon")

    // Check if item is not present
    val item = "peach"
    val isNotPresent = !mySet.contains(item)

    // Print result
    println("Is $item not present in the Set? $isNotPresent")
}

Output

Is peach not present in the Set? true

Summary

In this tutorial, we learned How to check if a Specific Item is present in the Set in Kotlin language with well detailed examples.

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How to check if a Specific Item is present in the Set in Kotlin - Step by Step Examples

How to check if a Specific Item is present in the Set in Kotlin ?

Answer

✐ Examples

1 Check if Item is Present

Kotlin Program

Output

2 Check if Item is Not Present

Kotlin Program

Output

Summary

More Kotlin Sets Tutorials