Java:我的编译器说我的 printf 语句之一已损坏，我不明白为什么

Question

这个问题已经有答案了:

Java: Literal percent sign in printf statement (4 个回答)

已关闭 3 年前。

这是我第一次提问，如果这看起来很奇怪，很抱歉。这是我的完整代码。带星号的分隔线是断开的线。

import java.util.Scanner;
public class CashRegister
{
    public static void main(String[] args)
    {
        Scanner keyboard = new Scanner(System.in);
        double price;
        final double TAX_RATE = 0.085;
        final double SURCHARGE = 0.04;
        final int MAX_PRICE = 500;
        double addedSurcharge = 0;
        do
        {
            do
            {
                System.out.print("Cost of Item (enter 0 or negative value to exit; max is $500.00): ");
                price = keyboard.nextDouble();
            } while (price > 500);
            int dollars = (int) price;
            int cents = (int) price - dollars;
            int convertPrice = (dollars * 100) + cents;
            if (convertPrice < 1500)
            {
                addedSurcharge = (convertPrice * SURCHARGE) / 100;
                System.out.printf("Surcharge of $%.2f added.", addedSurcharge);
                System.out.println();
            }
            double withTax = ((convertPrice * TAX_RATE) / 100) + addedSurcharge + convertPrice;

        **System.out.printf("Amount due (with 8.5% tax): $%.2f", withTax);**

        System.out.println();
    } while (price > 0);
    System.out.println("Done.");
}

Answer 1

您需要转义用作百分号的百分号:8.5%% 而不是 8.5%