出現(xiàn)了類型轉(zhuǎn)換問題
Set<Map.Entry<Goods, Integer>> goods = cart.getAllgoods().entrySet();
for (Map<Goods, Integer> obj : goods)
上面兩句代碼出現(xiàn)的類型轉(zhuǎn)換問題，怎么解決？？
Type mismatch: cannot convert from element type Map.Entry<Goods,Integer> to Map<Goods,Integer>
2017-04-21
改成for (Map.Entry<Goods, Integer> obj : goods)