import ceylon.collection { ArrayList } shared void run() { // you can get an array from the Array.ofSize named constructor value array = Array.ofSize(10, "hello"); value a = array[3]; print(a); array[4] = "goodbye"; print(array); // for a dynamic list import ceylon.collection in your module.ceylon file value list = ArrayList(); list.push("hello"); list.push("hello again"); print(list); }