Homework: SimpleArrayList add

Kotlin
1

class SimpleArrayList(given: Array<Any?>) {
private var values: Array<Any?> = given
fun size(): Int {
return values.size
}
fun getValues(): Array<Any?> {
return values
}
fun add(index: Int, value: Any?) {
require(index <= values.size && index >= 0)
var newArray = values.slice(0…index - 1) + value + values.slice(index…values.size - 1)
values = arrayOf(newArray)
}
}
I dont know how else I can solve this question. I never used the java library but Ive been getting java errors

2

The output of your code is not the expected output, and try to use for loop to solve this question.

class SimpleArrayList(given: Array<Any?>) {
  private var values: Array<Any?> = given
  fun size(): Int {
    return values.size
  }
  fun getValues(): Array<Any?> {
    return values
  }
  fun add(index: Int, value: Any?) {
    require(index <= values.size && index >= 0)
    var newArray = values.slice(0..index - 1) + value + values.slice(index..values.size - 1)
    values = arrayOf(newArray)
  }
}
var test = SimpleArrayList(Array<Any?>(0) { null })
test.add(0, 1)
test.add(0, 2)
println(test.getValues().contentToString()) // the output should be [2, 1]