Program to check whether the no is armstrong or not

//Program to check whether the no is armstrong or not
//Developed by Ahlam Ansari
   
import java.io.*;
import java.util.*;
class armstrong
{
    public static void main(String ahlam[])
    {
        int s=0,r,n,m,p=0,j=1;
        Scanner d=new Scanner(System.in);
        System.out.println("Enter the number");
        n=d.nextInt();
        m=n;
        while(m!=0)
        {   
            m=m/10;
            p++;   
        }
        int a=n;
        while(a!=0)
        {
            r=a%10;
            s=s+(int)Math.pow(r,p);
            a=a/10;   
        }
        if(n==s)
            System.out.print(n+ " IS Armstrong Number");
        else
            System.out.print(n+ " is NOT Armstrong Number");
    }
}

/*
Output

C:\Users\Ahlam\Google Drive\My Lectures\Fall\OOPM\Programs>javac armstrong.java

C:\Users\Ahlam\Google Drive\My Lectures\Fall\OOPM\Programs>java armstrong
Enter the number
153
153 IS Armstrong Number
C:\Users\Ahlam\Google Drive\My Lectures\Fall\OOPM\Programs>java armstrong
Enter the number
987
987 is NOT Armstrong Number
C:\Users\Ahlam\Google Drive\My Lectures\Fall\OOPM\Programs>
*/