How to run main function Kotlin file on command-line with string array arguments

Question

i'm trying to run one of .kt files that i have for my side project and I suddenly wanted run my *.kt file that has

fun main(args: Array<String>) { 
  ...
}

on command-line tool. I did install kotlin compiler, set up the path. All I have to do is to figure out how to pass args parameter through command line and cannot find a way to do that.

I've looked through kotlin compiler options and how to run kotlin file on command-line and it did not help at all.

Thanks in advance.

Steyrix · Accepted Answer · 2020-09-01 13:41:56Z

2

Just type them after the command:

java -jar myjar.jar arg_one arg_two

//OR (After compiling to jars you can specify the main class to run)
kotlin -classpath myjar.jar MyKt 'arg_one' 'arg_two'

//OR
kotlin MyKt 'arg_one' 'arg_two'

Then:

val argOne = args[0] // "arg_one"

edited Sep 1, 2020 at 13:41

answered Sep 1, 2020 at 12:17

Steyrix

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Comments

Wang · Accepted Answer · 2020-09-01 13:22:58Z

1

First you have to compile your file to a JAR:

kotlinc filename.kt -include-runtime -d output.jar

Then you can run that JAR with java:

java -jar output.jar argument0 argument1

answered Sep 1, 2020 at 13:22

Wang

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