c++ argument list for class template is missing code example

Example: c++ argument list for class template is missing

#include "LinkedArrayList.h"

template<typename ItemType>
void LinkedArrayList<ItemType>::insert (int index, const ItemType& item)
{}

template<typename ItemType>
ItemType LinkedArrayList<ItemType>::remove (int index)
{return ItemType();}

template<typename ItemType>
int LinkedArrayList<ItemType>::find (const ItemType& item)
{return -1;}