How can I filter an ArrayList in Kotlin so I only have elements which match my condition?

Question

I have an array:

var month: List<String> = arrayListOf("January", "February", "March") 

I have to filter the list so I am left with only "January".

Answer 1

You can use this code to filter out January from array, by using this code

var month: List<String> = arrayListOf("January", "February", "March") // to get the result as list var monthList: List<String> = month.filter { s -> s == "January" }  // to get a string var selectedMonth: String = month.filter { s -> s == "January" }.single()