我沒有得到以下代碼的預期輸出：

Question

import java.util.Scanner; 

public class Main { 

public static void main (String[]args) { 
    Scanner input = new Scanner(System.in); 
    int n, money; 
    String prodName = null; 
    String minProdName = null; 
    double price = 0.0; 
    double total = 0.0; 
    double min = 3000.0; 

    System.out.println ("How much money do you have?"); 
    money = input.nextInt(); 

    System.out.println ("Please, insert the items in the invoice (the name of the product and its price) or enter stop to finish billing "); 
    prodName = input.next(); 

    while (!(prodName.equals("stop"))) 
    { 
     price = input.nextDouble(); 
     prodName = input.next(); 
     total = total +price; 
    if (price<min && !(prodName.equals("stop"))) 
     { 
      min = price; 
      minProdName = prodName; 
     } 

    } 
    if (total<money) 
      System.out.println("You have enough money"); 
      System.out.println(); 

System.out.printf(" %s is the item with the minimum price(which is KD %.3f)", min); 

} 
} 

我總是得到'停止'作爲產品名稱與最低價格的輸出。我該如何解決這個問題？

預期輸出：

我的輸出：

Answer 1

System.out.printf(" %s is the item with the minimum price(which is KD %.3f)", min); 

這裏你逝去的只有一個值即可打印。你應該在這裏傳遞兩個值。首先作爲String，第二作爲Double。

所以這行更改爲

System.out.printf(" %s is the item with the minimum price(which is KD %.3f)", minProdName, min);