Question

How to get the last word from a string in Kotlin

Answer 1

fun main() {
    val s = "Kotlin coding concise cross-platform and fun"
    
	val words = s.split(" ")
    
	val lastWord = words.last()

	println(lastWord)  

}


 
/*
run:

fun
 
*/

 

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Answer 2

fun getLastWord(input: String): String {
    // Trim leading/trailing whitespace
    val trimmed = input.trim()

    // If empty after trimming, return empty string
    if (trimmed.isEmpty()) return ""

    // Split on whitespace and return the last element
    return trimmed.split(Regex("\\s+")).last()
}

fun main() {
    val tests = listOf(
        "vb.net javascript php c c++ python kotlin",
        "",
        "c#",
        "c c++ java ",
        "  "
    )

    tests.forEachIndexed { index, t ->
        println("${index + 1}. ${getLastWord(t)}")
    }
}



/*
run:

1. kotlin
2. 
3. c#
4. java
5. 

*/

 

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