Calculator using console

Example :

Calculator using console

solution :

 import java.util.Scanner;

 public class OddEven {

 public static void main (String []args){

 Scanner in = new Scanner (System.in);

 System.out.println("Enter the sign of the proceedure \nthen enter two integers");

 String c=in.next();

int x= in.nextInt() ,y=in.nextInt();

 int result;

 switch (c.charAt(0)){

 case '+': System.out.println(add(x,y));

 break;

 case '-': System.out.println(sub(x,y));

 break;

 case '*': System.out.println(mul(x,y));

 break;

 case '/': System.out.println(div(x,y));

 break;

 default : System.err.println("Error");

 }}

 public static int add (int a , int b ){

 return a+b;

 }

 public static int sub (int a , int b ){

 return a-b;

 }

 public static int mul (int a , int b ){

 return a*b;

 }

 public static int div (int a , int b ){

 if (b!=0)return (int)a/b ;

 else return 0;

 }

}