Calculadora.java

import java.util.Scanner;
import java.lang.Math;

public class Calculadora {

    public static void main(String[] args) {


        Scanner scanner = new Scanner(System.in);

        System.out.println("Introduce 2 numeros");
        float firstNumber;
        float secondNumber;

        try{
            firstNumber = scanner.nextInt();
            secondNumber = scanner.nextInt();

            System.out.println("Selecciona el tipo de operacion: *, /, +, -, %, ^");
            String operation = scanner.next();

            System.out.println("Resultado: ");

            switch (operation) {
            case "*":
                System.out.println(firstNumber * secondNumber);
                break;
            case "/":
                if(secondNumber != 0){
                    System.out.println(firstNumber / secondNumber);
                }else{
                    System.out.println("Es imposible dividir un numero entre 0");
                }
                break;
            case "+":
                System.out.println(firstNumber + secondNumber);
                break;
            case "-":
                System.out.println(firstNumber - secondNumber);
                break;
            case "%":
                System.out.println(firstNumber % secondNumber);
                break;
            case "^":
                System.out.println(Math.pow(firstNumbe, secondNumber));
                break;
            default: System.out.println("Selecciona una operacion valida");
            }
        }catch(Exception e){
            System.out.println("La calculadora solo acepta numeros enteros");
        }

        scanner.close();
    }
}