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LESSON 108 OF 677 · ARRAYS I

Static Array Length in Kotlin

Lesson

We can get the length of an array using the .size property like this:

val ourArray = intArrayOf(50, 40, 30)

// Printing the length:
println(ourArray.size) // Output: 3

Using the length

We can use the length to access items from the end of an array.

Because arrays are 0-indexed, the index of the last item is size - 1:

val ourArray = intArrayOf(50, 40, 30)

// Printing the last item:
println(ourArray[ourArray.size - 1]) // Output: 30

// Printing the second to last item:
println(ourArray[ourArray.size - 2]) // Output: 40

Assignment
Follow the Coding Tutorial and let's play with some arrays.


Hint
Look at the examples above if you get stuck.


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