java coding to input integers with operation

import java.util.Scanner;

public class grade {

public static void main(String[] args) {

int num1,num2,op;

Scanner input= new Scanner(System.in);

System.out.println("Enter two numbers: ");

num1 =input.nextInt(); 

num2 =input.nextInt();

 

op = num1 + num2;{

        System.out.println("Addition = " + op);

  

   op = num1 - num2;

        System.out.println("Subtraction = " + op);

  

   op = num1 * num2;

      System.out.println("Multiplication = " + op);

  

    op = num1 / num2;

      System.out.println("Division = " +op);

   }

}

}