armstrong_number_any_range.java

import java.util.*;
class armstrong{
    protected String num;
        armstrong(String n)//constructor to take input
        {
          num=n;
        }
        int nDig()//find the number of digits
        {
               int l=num.length();
               return l;
        }
       void outpt()
        {
            double sum=0;
            int n=nDig();
            int stor[]=new int[n];
            for(int i=0;i<n;i++)
            {
                char c=num.charAt(i);
                stor[i]=(int)c-48;
            }
            for(int i=0;i<n;i++)
            {
               //System.out.println(stor[i]+" ");
               sum=sum+Math.pow(stor[i],n);
            }
            int sm=(int)sum;
           String chk=Integer.toString(sm);
            if(num.equals(chk))
            {
                System.out.println(chk+" Amstrong number");
            }
            else
            {
                System.out.println(chk+" not Arrmstrong");
            }
        }
}
class O1
{
    public static void main(String args[])
    {
        Scanner in= new Scanner(System.in);
        System.out.println("enter a number");
        String s=in.nextLine();
        armstrong a=new armstrong(s);
        a.outpt();
    }
}