Java实训案例：饮料自动售卖机的代码

好的，下面是一个Java实现的饮料自动售卖机的代码示例：

import java.util.Scanner;

public class BeverageVendingMachine {
    // 存储饮料名称和价格的数组
    private static String[] beverages = {"可乐", "雪碧", "矿泉水", "果汁"};
    private static double[] prices = {3.0, 3.5, 2.5, 4.0};

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double balance = 0.0; // 初始余额为0
        while (true) {
            System.out.println("请选择要购买的饮料编号：");
            for (int i = 0; i < beverages.length; i++) {
                System.out.println(i + 1 + ". " + beverages[i] + " " + prices[i] + "元");
            }
            int choice = scanner.nextInt();
            if (choice < 1 || choice > 4) {
                System.out.println("输入有误，请重新输入！");
                continue;
            }
            double price = prices[choice - 1];
            System.out.println("您选择的是 " + beverages[choice - 1] + "，需要支付 " + price + " 元。");
            while (balance < price) {
                System.out.println("请投币：");
                double coin = scanner.nextDouble();
                balance += coin;
            }
            System.out.println("购买成功，找零 " + (balance - price) + " 元。");
            balance = 0.0; // 清空余额
        }
    }
}

这个代码实现了一个简单的饮料自动售卖机，用户可以选择要购买的饮料，然后投入硬币支付，购买成功后可以找零。