Day 2: Operators In Java | 30 Days Of Code | Hackerrank Programming Solutions

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Link for the ProblemDay 2: Operators – Hacker Rank Solution

Day 2: Operators – Hacker Rank Solution

Problem:

Objective
In this challenge, you will work with arithmetic operators. Check out the Tutorial tab for learning materials and an instructional video.

Task
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. Round the result to the nearest integer.

Example

A tip of 15% * 100 = 15, and the taxes are 8% * 100 = 8. Print the value  and return from the function.

Function Description
Complete the solve function in the editor below.

solve has the following parameters:

  • int meal_cost: the cost of food before tip and tax
  • int tip_percent: the tip percentage
  • int tax_percent: the tax percentage

Returns The function returns nothing. Print the calculated value, rounded to the nearest integer.

Note: Be sure to use precise values for your calculations, or you may end up with an incorrectly rounded result.

Input Format

There are  lines of numeric input:
The first line has a double,  (the cost of the meal before tax and tip).
The second line has an integer,  (the percentage of  being added as tip).
The third line has an integer,  (the percentage of  being added as tax).

Sample Input

12.00
20
8

Sample Output

15

Explanation

Given:
, , 

Calculations:


We round  to the nearest integer and print the result, .

Day 2: Operators – Hacker Rank Solution
import java.util.Scanner;

/**
 * @author Techno-RJ
 *
 */
public class Day2Operators {
	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
		scan.close();

		// Write your calculation code here.
		double tC = mealCost + (mealCost * tipPercent) / 100 + (mealCost * taxPercent) / 100;

		// cast the result of the rounding operation to an int and save it as totalCost
		int totalCost = (int) Math.round(tC);
		System.out.println("The total meal cost is " + totalCost + " dollars.");
		// Print your result
	}
}

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