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android-studiokotlinprintingprintln

Too many arguments for public inline fun println(): Unit defined in kotlin.io

I am trying to make a simple program that let you add just two numbers (just learning basics) and i just "fell" to this problem:

GODCalculator.kt: (18, 15):Too many arguments for public inline fun println(): Unit defined in kotlin.io

I tried to find some anwsers on internet, but didn't find excatly what i wanted to... nothing solved my issue

fun addition(){
println("So please insert two numbers, the program i mean the god will solve your math problem.")
print("Number #1: "); val z = readLine()!!.toInt()
print("\n")
print("Number #2: "); val c = readLine()!!.toInt()
val v = c+z
println(z," + " ,c, " = ",v)

Problem with: println(z," + " ,c, " = ",v)

but i also tried with "+" edition like this: println(z+" + "+c+" = "+v)

both didn't work :/

I use: IntelliJ IDEA Community Edition, but I don't think it matters anyway I am learning Kotlin on console, because when i tried to start use Android Studio i just got scared how many i have to know...

Edit: Thanks to lpizzinidev. His anwser totally fixed my issue... The correct way is: println("$z + $c = $v")

Solution

  • You can use string interpolation:

    println("$z + $c = $v")

    If you want to use string concatenation you should first convert the integers to a string with .toString():

    println(z.toString() + " + " + c.toString() + " = " + v.toString())

    The former approach is more verbose.