Java homework, please help! (Query processor using iterators) (fill in the hasnext(), next() ) (comments are what to do)

package iterators 4 L-l import java. util. Iterator public class Apply InT, 0utT implements Iterator Out T> The function that will be applied to each input element to make an output element f. private final ApplyFunction InT, 0utT The Iterator that this Apply object will get its input from 10 private final Iterator InT input 11 12 public Apply (ApplyFunction InT, out f, Iterator InTx inputs) t 13 14 16 @Override 17 public boolean hasNext (E) 19 21 @Override 22 public out T next 24 26 package iterators 4 L-l import java. util. Iterator public class Apply InT, 0utT implements Iterator Out T> The function that will be applied to each input element to make an output element f. private final ApplyFunction InT, 0utT The Iterator that this Apply object will get its input from 10 private final Iterator InT input 11 12 public Apply (ApplyFunction InT, out f, Iterator InTx inputs) t 13 14 16 @Override 17 public boolean hasNext (E) 19 21 @Override 22 public out T next 24 26