Saturday, 20 August 2016

Operators example-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.

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.

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

Input Format

There are 33 lines of numeric input:
The first line has a double, mealCost (the cost of the meal before tax and tip).
The second line has an integer, tipPercent (the percentage of mealCost being added as tip).
The third line has an integer, taxPercent (the percentage of mealCost being added as tax).

Output Format

Print The total meal cost is totalCost dollars.The total meal cost is totalCost dollars., where totalCost is the rounded integer result of the entire bill (mealCost with added tax and tip).

Sample Input

12.00
20
8

Sample Output

The total meal cost is 15 dollars.

Explanation

Given:
mealCost=12, tipPercent=20, taxPercent=8

Calculations:
tip=12×20100=2.4
tax=12×8100=0.96
totalCost=mealCost+tip+tax=12+2.4+0.96=15.36
round(totalCost)=15

We round totalCost to the nearest dollar (integer) and then print our result:

The total meal cost is 15 dollars.

SOLUTION:

    import java.io.*;
    import java.util.*;
    import java.text.*;
    import java.math.*;
    import java.util.regex.*;
    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
    scan.close();

    // Write your calculation code here.
    double tip = mealCost * ((double)tipPercent / 100);
    double tax = mealCost * ((double)taxPercent / 100);
    double tot = mealCost + tip + tax;
    // cast the result of the rounding operation to an int and save it as totalCost
    int totalCost = (int) Math.round(tot);

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