Day 2: Operators
Algorithm
Step:-1 Type cast Integer data type to Double. int tip_percent -> double tip_percent, and int tax_percent ->double tax_percent.Step:-2 Calculate tip=(meal_cost*tip_percent)/100 and tax=(meal_cost*tax_percent)/100.
Step:-3 Calculate total_cost=meal_cost+tip+tax.
Step:-4 Round the total_cost as the result,Round(total_cost).
Explanation
Here, three line of input are differents data types- double, integre, and integer and output is rounded value.so, our first aim to convert all into one data types-whether integer or double.But for more efficient, convert into double types.
In this problem we don't convert, simply type casting from integer to double(preserve all bits).
At first, we calculate result and hold in into total variable where int tip_percent and int tax_percent are type cast into double as (double)tip_percent and (double)tax_percent).
At last, simply output the rounded total value using Math.round() Function.
In this problem we don't convert, simply type casting from integer to double(preserve all bits).
int tip_percent, int tax_percent are type cast into double.At first, we calculate result and hold in into total variable where int tip_percent and int tax_percent are type cast into double as (double)tip_percent and (double)tax_percent).
double total=meal_cost+(meal_cost*(double)tip_percent)/100+(meal_cost*(double)tax_percent)/100;At last, simply output the rounded total value using Math.round() Function.
System.out.println(Math.round(total));Calculation
Step 1:- tip=mealCost * (tip_Percent/100).
Step 2:- tax=mealCost * (tax_Percent/100).
Step 3:- totalCost=mealCost + tip + tax.
Step 4:- output=round(totalCost).
Examples
Three line input and its output.
| Q.no. | Input | output |
|---|---|---|
| 1 | 12.00 20 8 | 15 |
Program
import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;
public class Solution {
// Complete the solve function below.
static void solve(double meal_cost, int tip_percent, int tax_percent) {
double total=meal_cost+(meal_cost*(double)tip_percent)/100+(meal_cost*(double)tax_percent)/100;
System.out.println(Math.round(total));
}
private static final Scanner scanner = new Scanner(System.in);
public static void main(String[] args) {
double meal_cost = scanner.nextDouble();
scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
int tip_percent = scanner.nextInt();
scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
int tax_percent = scanner.nextInt();
scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
solve(meal_cost, tip_percent, tax_percent);
scanner.close();
}
}
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