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arrayskotlin
Kenny
Kenny

Reputation: 95

Kotlin - Iterate through array

I have an array like this and I would like to loop through it and get the value "B". I know how to get it in Java but I have no idea how to get it in Kotlin. Could someone show me how to do this?

private val myArray = arrayOf({"A";"B"},{"C";"D"})

Thanks.

Upvotes: 7

Views: 20623

Answers (2)

Animesh Sahu
Animesh Sahu

Reputation: 8096

{} is not a valid operator to create array in kotlin you've to use arrayOf() instead. In kotlin {} is reserved for creating lambda funtions.

You could iterate over the array like this:

private val myArray = arrayOf(arrayOf("A", "B"),arrayOf("C", "D"))

for (innerArray in myArray) {
    for(element in innerArray) {
        println(element) // or your logic to catch the "B"
    }

}

Upvotes: 5

Narek Hayrapetyan
Narek Hayrapetyan

Reputation: 1929

You can do it with just one Loop

   val arr: Array<Array<String>> = arrayOf(arrayOf("A", "B"), arrayOf("C", "D"))
   for (arr2: Array<String> in arr) {
      val contains: Boolean = arr2.contains("B")
      if (contains) {
           println(arr2)
           break
       }
     }

Upvotes: 1

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