Add that in PlayerItems.Java underCode:public boolean haveItem(Player p, int itemID) { return haveItem(p,itemID,1); } public boolean haveItem(Player p, int itemID, int amount) { int found = 0; for (int i = 0; i < p.items.length; i++) { if (p.items[i] == itemID) { if(p.itemsN[i] >= amount) return true; else found++; } } if(found >= amount) return true; return false; }Code:public class PlayerItems {