Help me in solving LPYAS151 problem

help
,
1

My issue

hidden test casesfailed

My code

import java.util.*;
import java.lang.*;
import java.io.*;

class Codechef
	    
{
    int order(int x){
       int n = 0;
        while (x != 0) {
            n++;
            x = x / 10;
        }
        if(n<=10){
             return n;
        }
        else{
             return -1;
        }
       
        
    }
     void isArmstrong(int x){
         int m= order(x);
         int r=0;
         double sum=0;
         int temp=x;
         while(temp!=0){
         r=r%10;
         
         sum= sum+Math.pow(r,m);
         temp=temp/10;
         }
         if(x==sum){
             System.out.println("Armstrong");
         }
         else{
             System.out.println("Not Armstrong");
         }
     }
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc =new Scanner(System.in);
		int x=sc.nextInt();
		Codechef ob = new  Codechef();
        ob.isArmstrong(x);
       

	}
}

Learning course: Roadmap to 3*
Problem Link: https://www.codechef.com/learn/course/rcpit-roadmap-3star/RCPITRMT01/problems/LPYAS151