can anyone tell me why this error iss happening ```java.lang.ArrayIndexOutOfBoundsException: Index 6...

# announcements

[otakusenpai]

can anyone tell me why this error iss happening

java.lang.ArrayIndexOutOfBoundsException: Index 6 out of bounds for length 6

In this code

fun getMarketMap(stats: MarketStats): Map<String,MarketResponse> {
        var map = mutableMapOf<String,MarketResponse>()
        for(i in 0 until (stats.marketPrice.size)) {
            println("$i th: ${locations[i]}")
            map[locations[i]] = stats.marketPrice[i]
        }
        return map
    }

and if possible any way to improve the code

[deactivateduser]

could be your locations... how many items does it have? for 6 items, the maximum index is 5...

[jmillner_]

I'd suggest taking a look at IntRange

[Kristoffer Andersen]

Impossible to say without more context, but I am going to guess locations is too small 🙂

[jmillner_]

https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.ranges/-int-range/index.html

[jmillner_]

Perhaps functionalise it and take each invocation on the range, one step at a time

[otakusenpai]

val locations = listOf("Caerleon","Lymhurst","Martlock","Bridgewatch",
        "FortSterling","Thetford")

[otakusenpai]

thats the locations list

[deactivateduser]

whats your stats.marketPrice.size ?

[otakusenpai]

idk, let me deebug it

[otakusenpai]

I see now whats the problem.
The size of stats.marketprize,size is 30
Thnx for your help guyss

[Aleksa Boškov]

stats.marketPrice
    .mapIndexed { index, element ->
        println(whatever you need)
        locations[index] to element
    }
    .toMap()

[Aleksa Boškov]

you could also use the zip function

[Aleksa Boškov]

generally, prefer the countless extensions on Iterable that Kotlin provides over iterating in loops