Appending Item to ArrayList in Kotlin

We can add elements to the end of an ArrayList using the .add() method.

.add() takes one parameter and "pushes" it onto the end of the ArrayList:

val arr1 = mutableListOf(1, 2, 3)
arr1.add(4)

// arr1 is now [1, 2, 3, 4]

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

Hint
Look at the examples above if you get stuck.