lesson 4 defensive 1

public class Database {
 private ArrayList<Item> items;
 //...

 public boolean removeItem(String title){
  for(int i = 0; i < items.size(); i++){
   if(items.get(i).getTitle().equals(title)){
   items.remove(i);
   return true;
  }
 }
 // item not found
 return false;
 }

 //...
}