Question

Write a program that mimics a calculator. The program should take as input two integer and an arithmetic operation (+, -, *, /, %) to be performed. It should then output the numbers the operator and the

result. Division by zero??

Answer 1

import java.io.IOException;

import java.util.Scanner;

public class Operation {

public static void main(String[] args) throws IOException

{

int numerator, denominator;

char operation;

Scanner in = new Scanner(System.in);

System.out.print("Enter your calculation: ");

numerator = in.nextInt();

denominator = in.nextInt();

operation = in.next().charAt(0);;

switch (operation) {

case 'x':

case '*':

System.out.println(numerator +" "+ operation +" "+ denominator +" result is " + (numerator * denominator));

break;

case '+':

System.out.println(numerator +" "+ operation +" "+ denominator +" result is " + (numerator + denominator));

break;

case '-':

System.out.println(numerator +" "+ operation +" "+ denominator +" result is " + (numerator - denominator));

break;

case '/':

case '%':

if (numerator == 0 || denominator == 0)

System.out.println("Cannot divide by zero");

else

System.out.println(numerator +" "+ operation +" "+ denominator +" result is " + (numerator / denominator));

break;

default:

System.out.println( "There was an error with your input");

break;

}

}

}

output:

Enter your calculations: 5 2 +

5 + 2 result is 7