JF-LabMethods11.Math Operations

import java.text.DecimalFormat;
import java.util.Scanner;

public class Lab11MathOperations {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double input1 = Double.parseDouble(scanner.nextLine());
        char operation = scanner.nextLine().charAt(0);
        double input2 = Double.parseDouble(scanner.nextLine());
        double calculation = getOperationBySign(input1,operation,input2);
        System.out.println(new DecimalFormat("0.##").format(calculation));
    }

    private static double getOperationBySign(double input1, char operation, double input2) {
        double mathCalculation = 0.0;
        switch (operation){
            case'+':
                mathCalculation = input1+input2;
                break;
            case'-':
                mathCalculation = input1-input2;
                break;
            case'*':
                mathCalculation = input1*input2;
                break;
            case'/':
                mathCalculation = input1/input2;
                break;

        }
        return mathCalculation;
    }
}
/*Write a method that receives two numbers and an operator, calculates the result
 and returns it. You will be given three lines of input. The first will be
  the first number, the second one will be the operator and the last one will
   be the second number. The possible operators are: / * + -
Print the result rounded up to the second decimal point.
*/