java - 去除除法中的小数

Question

在我最近开发的一款游戏中，我创建了商店。 当您购买商品并尝试出售时，售价会降至购买价格的 75%。 购买 154 金币的元素后，商店会以 115.5 金币的价格购买，但你可以通过出售获得 115 金币。

我希望从“115.5”中删除“.5” 如有任何帮助，我们将不胜感激。

        int ShopValue = (int)Math.floor(getItemShopValue(removeId, 1, removeSlot));
        String ShopAdd = "";
        if (ShopValue >= 1000 && ShopValue < 1000000) {
            ShopAdd = " (" + (ShopValue*.75 / 1000) + "k)";
        } else if (ShopValue >= 100) {
            ShopAdd = " (" + (ShopValue*.75 / 1) + " coins)";
        } else if (ShopValue >= 1000000) {
            ShopAdd = " (" + (ShopValue*.75 / 1000000) + " million)";
        } else if (ShopValue >= 1000000000) {
            ShopAdd = " (" + (ShopValue*.75 / 1000000000) + " billion)";
        }
        c.sM(c.getItems().getItemName(removeId)+": shop will buy for <col=255>"+ShopAdd+"</col> coins");
    }
}

Answer 1

我只会使用Math.floor。

        int ShopValue = (int)Math.floor(getItemShopValue(removeId, 1, removeSlot));
        String ShopAdd = "";
        if (ShopValue >= 1000 && ShopValue < 1000000) {
            ShopAdd = " (" + Math.floor(ShopValue*.75 / 1000) + "k)";
        } else if (ShopValue >= 100) {
            ShopAdd = " (" + Math.floor(ShopValue*.75 / 1) + " coins)";
        } else if (ShopValue >= 1000000) {
            ShopAdd = " (" + Math.floor(ShopValue*.75 / 1000000) + " million)";
        } else if (ShopValue >= 1000000000) {
            ShopAdd = " (" + Math.floor(ShopValue*.75 / 1000000000) + " billion)";
        }
        c.sM(c.getItems().getItemName(removeId)+": shop will buy for <col=255>"+ShopAdd+"</col> coins");
    }
}

如果您想对玩家更慷慨一点，您可以使用 Math.ceil ;-)