Reverse number

/*
    GTU Practical EXERCISES
    29th March,2023
    Karishma and Nency
    Write a program in Java to reverse the digits of a
    number using while loop
*/
import java.util.Scanner;
class q3
{
    public static void main(String args[])
    {
        int n,s,rev=0;
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter number=>");
        n=sc.nextInt();
        while(n!=0)
        {
            s=n%10;
            rev=rev*10+s;
            n=n/10;
        }
        System.out.println("Reverse is "+rev);
    }
}