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);

   }

}

}

java coding to assort 3 number in ascending order

import java.util.Scanner;

public class op {

public static void main(String[] args) {

Scanner io= new Scanner(System.in);

System.out.print("please enter a number: ");

int num1=io.nextInt(); 

int num2=io.nextInt();

int num3=io.nextInt();

if (num1 > num2) {

     int num = num1;

     num1 = num2;

     num2 = num;

   }

   if (num2 > num3) {

     int num = num2;

     num2 = num3;

     num3 = num;

   }

   if (num1 > num2) {

     int num = num1;

     num1 = num2;

     num2 = num;

   }

   System.out.println("The numbers are " + num1 + " " + num2 + " " + num3);

 }

}