What does the following Java code fragment do$?($Choose ALL that apply$)$

int$[]$ arr;

Declares an array of type int referenced by the variable arr.

Allocates space on the heap for the array

Allocates ten elements for the array on the heap and initialize them to zero

Creates a variable$-$length array named arr that grows automatically

Declares that it's talk$-$like$-$a$-$pirate day "Arr!!"