Can someone explain 3rd point in better words please ?
I don't know in english but in french it is totally not understandable :D
package fr.codegym.task.task17.task1713;
import java.util.*;
/*
Liste partagée
*/
public class Solution implements List<Long>{
private ArrayList<Long> original = new ArrayList<>();
public static void main(String[] args) {
}
@Override
synchronized public int size() {
return 0;
}
@Override
synchronized public boolean isEmpty() {
return false;
}
@Override
synchronized public boolean contains(Object o) {
return false;
}
@Override
synchronized public Iterator<Long> iterator() {
return null;
}
@Override
synchronized public Object[] toArray() {
return new Object[0];
}
@Override
synchronized public <T> T[] toArray(T[] a) {
return null;
}
@Override
synchronized public boolean add(Long aLong) {
return false;
}
@Override
synchronized public boolean remove(Object o) {
return false;
}
@Override
synchronized public boolean containsAll(Collection<?> c) {
return false;
}
@Override
synchronized public boolean addAll(Collection<? extends Long> c) {
return false;
}
@Override
synchronized public boolean addAll(int index, Collection<? extends Long> c) {
return false;
}
@Override
synchronized public boolean removeAll(Collection<?> c) {
return false;
}
@Override
synchronized public boolean retainAll(Collection<?> c) {
return false;
}
@Override
synchronized public void clear() {
}
@Override
synchronized public Long get(int index) {
return null;
}
@Override
synchronized public Long set(int index, Long element) {
return null;
}
@Override
synchronized public void add(int index, Long element) {
}
@Override
synchronized public Long remove(int index) {
return null;
}
@Override
synchronized public int indexOf(Object o) {
return 0;
}
@Override
synchronized public int lastIndexOf(Object o) {
return 0;
}
@Override
synchronized public ListIterator<Long> listIterator() {
return null;
}
@Override
synchronized public ListIterator<Long> listIterator(int index) {
return null;
}
@Override
synchronized public List<Long> subList(int fromIndex, int toIndex) {
return null;
}
}