Length

The number of elements which comprise an array can be accessed by using .length.¹

void main() {
String[] veggies = { "brussels", "cabbage", "carrots" };
int numberOfElements = veggies.length;

// veggies is 3 elements long
IO.println(
    "veggies is " + numberOfElements + " characters long"
);
}

1. Unlike with a String, you do not write () after .length. ↩