方法覆写是不能改变方法签名的吧？那我怎么才能把每个方法都改成调用original对象？ 改了之后就不是override了
package zh.codegym.task.task17.task1713;
import java.util.*;
/*
共享列表
*/
public class Solution implements List<Long>{
private ArrayList<Long> original = new ArrayList<>();
public static void main(String[] args) {
}
@Override
public synchronized int size() {
return 0;
}
@Override
public synchronized boolean isEmpty() {
return false;
}
@Override
public synchronized boolean contains(Object o) {
return false;
}
@Override
public synchronized Iterator<Long> iterator() {
return null;
}
@Override
public synchronized Object[] toArray() {
return new Object[0];
}
@Override
public synchronized <T> T[] toArray(T[] a) {
return original;
}
@Override
public synchronized boolean add(Long aLong) {
return false;
}
@Override
public synchronized boolean remove(Object o) {
return false;
}
@Override
public synchronized boolean containsAll(Collection<?> c) {
return false;
}
@Override
public synchronized boolean addAll(Collection<? extends Long> c) {
return false;
}
@Override
public synchronized boolean addAll(int index, Collection<? extends Long> c) {
return false;
}
@Override
public synchronized boolean removeAll(Collection<?> c) {
return false;
}
@Override
public synchronized boolean retainAll(Collection<?> c) {
return false;
}
@Override
public synchronized void clear() {
}
@Override
public synchronized Long get(int index) {
return null;
}
@Override
public synchronized Long set(int index, Long element) {
return null;
}
@Override
public synchronized void add(int index, Long element) {
}
@Override
public synchronized Long remove(int index) {
return null;
}
@Override
public synchronized int indexOf(Object o) {
return 0;
}
@Override
public synchronized int lastIndexOf(Object o) {
return 0;
}
@Override
public synchronized ListIterator<Long> listIterator() {
return null;
}
@Override
public synchronized ListIterator<Long> listIterator(int index) {
return null;
}
@Override
public synchronized List<Long> subList(int fromIndex, int toIndex) {
return null;
}
}