Search

Search.kt

class SearchUtil(private val list: List<Int>) {
    fun searchItem(element: Int, foundItem: (element: Int?) -> Unit) {
        val itemFoundList = list.filter {
            it == element
        }
        if (itemFoundList.isNullOrEmpty())
            foundItem(null)
        else
            foundItem(itemFoundList.first())
    }
}

fun search() {
    val searchUtil = SearchUtil(listOf(25, 46, 35))
    searchUtil.searchItem(element = 25) {
        println("Search result : $it")
    }
}

fun main() {
    search()
}