Golo arrays can be created using the array[...] literal syntax. Such arrays are of JVM type Object[].

There are cases where one needs typed arrays rather than Object[] arrays, especially when dealing with existing Java libraries.

The newTypedArray predefined function can help:

let data = newTypedArray(java.lang.String.class, 3)
data: set(0, "A")
data: set(1, "B")
data: set(2, "C")