I have a list, e.g like:
val list = listOf("orange", "apple", "apple", "banana", "water", "bread", "banana")
我如何判断苹果在这个列表中重复了多少次?
I have a list, e.g like:
val list = listOf("orange", "apple", "apple", "banana", "water", "bread", "banana")
我如何判断苹果在这个列表中重复了多少次?
list.count { it == "apple" }
Documentation: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-list/, https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/count.html