账单随机生成的java模拟代码

以下是一个简单的随机生成账单的 Java 模拟代码：

import java.util.Random;

public class BillGenerator {
    private static final String[] ITEM_NAMES = {"T-shirt", "Jeans", "Sneakers", "Socks", "Hat", "Sunglasses"};
    private static final double[] ITEM_PRICES = {19.99, 49.99, 99.99, 9.99, 14.99, 29.99};
    private static final int MAX_ITEMS = 10;
    
    public static void main(String[] args) {
        Random rand = new Random();
        int numItems = rand.nextInt(MAX_ITEMS) + 1;
        double[] itemPrices = new double[numItems];
        String[] itemNames = new String[numItems];
        
        for (int i = 0; i < numItems; i++) {
            int index = rand.nextInt(ITEM_NAMES.length);
            itemNames[i] = ITEM_NAMES[index];
            itemPrices[i] = ITEM_PRICES[index];
        }
        
        double subtotal = 0;
        System.out.println("Item\tPrice");
        for (int i = 0; i < numItems; i++) {
            System.out.println(itemNames[i] + "\t" + itemPrices[i]);
            subtotal += itemPrices[i];
        }
        
        double tax = subtotal * 0.08;
        double total = subtotal + tax;
        System.out.println("Subtotal: " + subtotal);
        System.out.println("Tax (8%): " + tax);
        System.out.println("Total: " + total);
    }
}

这个程序会随机生成一个账单，包括一些商品和它们的价格，以及总价和税金。你可以根据需要调整 ITEM_NAMES、ITEM_PRICES 和 MAX_ITEMS 的值来改变生成账单的规则。