Java homehork help please! thank you!

backage iterators 3 import java. util. Iterator import java. util.LinkedList 7 /Iterator that may produce 0 or more output elements for every input element public class PlatApply(InT,Out T> Iterator { implements public FlatApply (FlatApplyFunction f, Iterator input) i 9 10 12 @0verride public boolean hasNext O f 15 16 @0verride public OutI next O 19 20 // feel free to create private methods if helpful 21