Day 2 of HackerRank’s 30 days of code was a fairly simple task designed to teach operators.
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
int tipPercent = scan.nextInt(); // tip percentage
int taxPercent = scan.nextInt(); // tax percentage
double totalCostOfMeal = 0;
double tipCost = 0;
scan.close();
// Write your calculation code here.
totalCostOfMeal = (mealCost + (mealCost * (tipPercent/100))) * ((taxPercent/100) + 1);
//System.out.println("mealCost: " + mealCost);
//System.out.println("tipPercent: " + (((float)tipPercent/100) + 1));
//System.out.println("taxPercent: " + (((float)taxPercent/100) + 1));
tipCost = (((float)tipPercent/100) * mealCost);
//System.out.println("tipCost: " + tipCost);
totalCostOfMeal = (mealCost*(((float)taxPercent/100) + 1)) + tipCost;
//System.out.println("totalCostOfMeal: " + totalCostOfMeal);
// cast the result of the rounding operation to an int and save it as totalCost
int totalCost = (int) Math.round(totalCostOfMeal);
// Print your result
System.out.println("The total meal cost is " + totalCost + " dollars.");
}
}