Java recursive function to reverse the digits of number

Write java program to input a number and reverse the digits of number by using recursive function.

import java.util.*;
class Revese
{
    public static int rev(int n,int r)
    {
        if(n==0)     
        {
            return r;
        }
        else
        {
            r=r*10+n%10;
            return(rev(n/10,r));
        }
    }
    public static void main(String arr[]) 
    {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter any Number to Reverse: ");
        int num=sc.nextInt();
        int res=rev(num,0);
        System.out.println("Rev of Number is "+res);
    }
}

Enter any Number to Reverse: 

345

Rev of Number is 543