getting the wrong meal cost

Question

** **

Given the meal price (base cost of a meal), tip percent (the percentage of the meal price being added as tip), and tax percent (the percentage of the meal price being added as tax) for a meal, find and print the meal's total cost.

Here is my code

public class Solution3 {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        double mealCost = scan.nextDouble(); // original meal price
        int tipPercent = scan.nextInt(); // tip percentage
        int taxPercent = scan.nextInt(); // tax percentage
        double tip = mealCost *(tipPercent/100);
        double tax = mealCost*(taxPercent/100);
        double total= mealCost+tip+tax;
        // cast the result of the rounding operation to an int and save it as totalCost 
        int totalCost = (int) Math.round(total);

         System.out.println("The total meal cost is "+totalCost+" dollars");
    }
}

Expected Output

The total meal cost is 15 dollars.

My Output

The total meal cost is 12 dollars.

Please help me out.

Any help would be appreciated.

You're doing integer division, which truncates decimals. Try `/100.0` instead. — shmosel, Sep 23 '16 at 04:06
Possible duplicate of [Division of integers in Java](http://stackoverflow.com/questions/7220681/division-of-integers-in-java) — shmosel, Sep 23 '16 at 04:11

score 2 · Answer 1 · answered Sep 23 '16 at 04:14

2

It's an integer division issue.

Try this:

double tip = mealCost *(tipPercent/100.0);
double tax = mealCost*(taxPercent/100.0);

answered Sep 23 '16 at 04:14

codemirel

170
10

that's perfect! – codemirel Sep 23 '16 at 04:19

score 0 · Accepted Answer · edited Aug 27 '17 at 15:05

0

Calculate answer as:

double tip=(mealCost*tipPercent)/100;
double tax=(mealCost*taxPercent)/100;

edited Aug 27 '17 at 15:05

Stephen Rauch

44,696
30
102
125

answered Aug 27 '17 at 14:47

Mayuri Sapkal

16
1

getting the wrong meal cost

2 Answers2