Reverse of a Number

Reverse of a Number

Program to display reverse of a number

Example : Original Number : 423

                 Reverse Number : 234

Program below :-

import java.io.*;

import java.util.*;

class Reverse

{

    public static void main(String args[])

    {

        Scanner in= new Scanner(System.in);

        int n,p,rev,s=0;

        System.out.println("Enter No.");

        n= in.nextInt(); // Input number from user

        p=n; // store the entered number in "p" variable

        while(n>0)

        {

            rev=n%10; // extract last digit of the number

            s=s*10+rev; // store the digit last digit

            n=n/10; // extract all digit except the last

        }

        System.out.println("Original Number : "+p);

        System.out.println("Reverse Number : "+s);

    } // end of main method

} // end of class