examples\book\digital-artists\chapter3\Listing3.3.ck
// Listing 3.3 Accessing (reading and writing) data in an array
// declare and initialize an array
[57, 57, 64, 64, 66, 66, 64] @=> int a[];
// array look up by index
a[2] => int myNote; // (1) Looks up note in array by integer index
// print it out to check
<<< myNote >>>; // (2) Prints it
// want to change data? no problem! (print too)
61 => a[2]; // (3) Changes array element value at index
<<< myNote, a[2] >>>;