JavaDay03.练习1.写一个程序,计算KFC饮料第二杯半价策略

写一个程序,计算KFC饮料第二杯半价策略
输入饮料的单价和购买杯数,然后得出需要花费多少钱?
(半价策略即偶数杯都是半价的)

import java.util.Scanner;


public class T1 {
   public static void main(String[] args) {
       Scanner scanner = new Scanner(System.in);
       System.out.println("请您输入饮料单价: ");
       double price = scanner.nextDouble();
       System.out.println("请您输入购买数量: ");
       int amount = scanner.nextInt();
       
       double total = amount / 2 * price + amount / 2 * (price / 2);//一半全价,一半半价
       //判断购买数量是否是奇数,如果是奇数,则加一个全价
       if (amount % 2 != 0) {
           total += price;
       }
       System.out.println("您一共需要花费: " + total + "元.");
   }
   }