How to print all elements of String array in Kotlin in a single line?

Idiomatically:

fun main(args: Array<String>) { val someList = arrayOf("United", "Chelsea", "Liverpool") println(someList.joinToString(" ")) } 

This makes use of type inference, an immutable value, and well-defined methods for doing well-defined tasks.

The joinToString() method also allows prefix and suffix to be included, a limit, and truncation indicator.

You can achieve this using "contentToString" method:

var someList : Array<String> = arrayOf("United","Chelsea","Liverpool") println(someList.contentToString()) O/p: [United, Chelsea, Liverpool]e 

I know three ways to do this:

(0 until someList.size).forEach { print(someList[it]) } someList.forEach { print(it) } someList.forEach(::print) 

Hope you enjoyed it :)

You can do the same:

fun main(args : Array<String>){ var someList : Array<String> = arrayOf("United","Chelsea","Liverpool") someList.forEach(System.out::print) } 

You could

fun main(args : Array<String>){ var someList : Array<String> = arrayOf("United","Chelsea","Liverpool") val sb = StringBuilder() for (element in someList) { sb.append(element).append(", ") } val c = sb.toString().substring(0, sb.length-2) println(c) } 

gives

United, Chelsea, Liverpool 

alternatively you can use

print(element) 

in the for loop, or even easier use:

var d = someList.joinToString() println(d) 

Simply do this, no need to use loop and iterate by yourself. Reference

println(someList.joinToString(",")) 

If it is solely for printing purpose then a good one liner is

 var someList : Array<String> = arrayOf("United","Chelsea","Liverpool") println(java.util.Arrays.toString(someList))