未能獲得預期的輸出hackerrank DAY2程序

-3

import java.util.*; 
import java.math.*; 

public class Arithmetic 
{ 

public static void main(String[] args) 
{ 
    Scanner scan = new Scanner(System.in); 
    double mealCost = scan.nextDouble(); // original meal price 
    double tipPercent = scan.nextDouble(); // tip percentage 
    double taxPercent = scan.nextDouble(); // tax percentage 
    scan.close(); 

    // Write your calculation code here. 
    tipPercent = mealCost*tipPercent/100.0; 
    taxPercent =mealCost*taxPercent/100.0; 



    //cast the result of the rounding operation to an int and save it as totalCost 

    double totalCost = mealCost + tipPercent + taxPercent; 

    // Print your result 
    int total = (int)totalCost; 
    System.out.println("The total meal cost is " + total + " dollars."); 
} 
}

輸入：
20.75
預期輸出：總用餐的費用爲23美元。未能獲得預期的輸出hackerrank DAY2程序

結果輸出：總餐費爲26美元。

這個程序有什麼問題？

來源

2017-10-06 vijay_ky

你調試你的程序了嗎？你是否確認了單個步驟產生了正確的結果？你爲什麼使用數值''20''和''8''？ – f1sh

你沒有使用你的輸入參數，而是用硬編碼的數字覆蓋它們。 –

你的預期結果不應該是33美元嗎？只需簡單地加上所有三個就可以得到33.75！ – procrastinator

您不使用小費和稅收輸入。

它應該是：

tipPercent = mealCost*tipPercent/100.0; 
taxPercent = mealCost*taxPercent/100.0;

來源

2017-10-06 11:38:59

是的，我做到了。即使它的結果與預期相同。 –

我無法重現您的問題。當我拿起你的代碼並對它進行修改時，它輸出了預期的結果。也許你的計算出了問題。 –

最後這段代碼工作完全

import java.util.*; 
import java.math.*; 

public class Arithmetic 
{ 

public static void main(String[] args) 
{ 
    Scanner scan = new Scanner(System.in); 
    double mealCost = scan.nextDouble(); // original meal price 
    double tipPercent = scan.nextDouble(); // tip percentage 
    double taxPercent = scan.nextDouble(); // tax percentage 
    scan.close(); 

    // Write your calculation code here. 
    tipPercent = mealCost*tipPercent/100.0; 
    taxPercent =mealCost*taxPercent/100.0; 

    // cast the result of the rounding operation to an int and save it as 
//totalCost 
    double totalCost = mealCost + tipPercent + taxPercent; 

    if((tipPercent + 0.5)>=((int)tipPercent + 1)) 
     { 
      totalCost += 1; 
     } 
     else 
    { 
    } 
    // Print your result 
    int total = (int)totalCost; 
    System.out.println("The total meal cost is " + total + " dollars."); 
} 
}

來源

2017-10-06 13:53:41

這不是一個通用的解決方案。你只是硬編碼設置「totalCost」的值。 – procrastinator

未能獲得預期的輸出hackerrank DAY2程序

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