如何在Java中将15%更改为0.15？

因此，我正在制作一个基本的小费计算器，我需要知道如何将用户输入的15%、23%等更改为0.15、0.23等

这是我当前的代码：

import java.util.Scanner;
public class TipCalc {
    public static void main(String args[]) {
        Scanner meal = new Scanner(System.in);
        double food, tax, tip, fin;
        System.out.println("How much was the meal?");
        food = meal.nextDouble();
        System.out.println("How much was the tax?");
        tax = meal.nextDouble();
        System.out.println("How much would you like to tip? I recomend 15%");
        tip = meal.nextDouble();
    }
}

请帮忙！谢谢

double tip;
tip = meal.nextDouble() / 100;

或

甚至

double tip = 15.0;
tip /= 100;

或

甚至

double tip = 15.0;
tip /= 100;

---

如果您的提示输入为15

使用

---

如果提示的输入为15，则输出为：0.15

使用

将输出：0.15

tip=fine.nextInt（）/100.0最重要的错误：推荐
tip=deal.nextInt（）/100.0最重要的错误：推荐
tip = meal.nextDouble() / 100.0;

System.out.println(tip);