我該如何使我的while循環按我希望的方式工作？

Question

如果用戶對“ Continue？:( y / n）”提示回答是，我試圖使代碼循環提示輸入矩形的長度和寬度。

當前正在循環“ Continue？:( y / n）”部分，而不是“ Enter Length：”和“ Enter Width：”部分。 任何幫助表示贊賞！

import java.util.Scanner;

public class Day1 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Welcome to Grand Circus' Room Detail Generator!");

        double length = 0.0;
        double width = 0.0;
        double area = 0.0;
        double perimeter = 0.0;

        System.out.println("Enter Length: ");
        length = scanner.nextInt();

        System.out.println("Enter Width: ");
        width = scanner.nextInt();

        area = length * width;
        perimeter = 2 * (length + width);

        System.out.println("Area: " + area);
        System.out.println("Perimeter: " + perimeter);

        Scanner sc = new Scanner(System.in);
        String response;

        do {
            System.out.print("Continue? (y/n):");
            response = sc.next();
        } while (response.equals("y") || response.equals("Y"));
    }
}

Answer 1

放

Scanner sc = new Scanner(System.in);
String response;
do {

之前

System.out.println("Enter Length: ");

為什么要重復循環主體之外的任何內容（ do {和} while (...)之間} while (...) ）？