07. Operations Between Numbers

import java.util.Scanner;

public class LiveDemo {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        int number1 = Integer.parseInt(scan.nextLine());
        int number2 = Integer.parseInt(scan.nextLine());
        char operator = scan.nextLine().charAt(0);

        switch (operator) {
            case '+':
                int result = number1 + number2;
                if (result % 2 == 0) {
                    System.out.printf("%d + %d = %d - even", number1, number2, result);
                } else {
                    System.out.printf("%d + %d = %d - odd", number1, number2, result);
                }
                break;
            case '-':
                result = number1 - number2;
                if (result % 2 == 0) {
                    System.out.printf("%d - %d = %d - even", number1, number2, result);
                } else {
                    System.out.printf("%d - %d = %d - odd", number1, number2, result);
                }
                break;
            case '*':
                result = number1 * number2;
                if (result % 2 == 0) {
                    System.out.printf("%d * %d = %d - even", number1, number2, result);
                } else {
                    System.out.printf("%d * %d = %d - odd", number1, number2, result);
                }
                break;
            case '/':
                if (number2 != 0) {
                    double divResult = number1 * 1.0 / number2;
                    System.out.printf("%d / %d = %.2f", number1, number2, divResult);
                } else {
                    System.out.printf("Cannot divide %d by zero", number1);
                }
                break;
            case '%':
                if (number2 != 0) {
                    result = number1 % number2;
                    System.out.printf("%d %% %d = %d", number1, number2, result);
                } else {
                    System.out.printf("Cannot divide %d by zero", number1);
                }
                break;
        }
    }
}