看例程:学习 for 循环的另一种写法
public class LittleSuperMarketAppMain {
public static void main(String[] args) {
LittleSuperMarket superMarket = new LittleSuperMarket("大卖场",
"世纪大道1号", 500, 600, 100);
MerchandiseV2[] all = superMarket.getMerchandises();
// >> TODO 只循环遍历,不赋值,不跳跃访问,不需要知道当前元素是第几个
// >> TODO 后面还有更多功能
double maxPurchasePrice = -1;
for (MerchandiseV2 m : all) {
if (m.getPurchasePrice() > maxPurchasePrice) {
maxPurchasePrice = m.getPurchasePrice();
}
}
System.out.println(maxPurchasePrice);
System.out.println(superMarket.getBiggestPurchasePrice());
}
}
只循环遍历,不赋值,不跳跃访问,不需要知道当前元素是第几个