Armstrong.java

import java.util.Scanner;  
import java.lang.Math;  
public class Armstrong  
{  
	static boolean isArmstrong(int n)   
	{   
		int temp, digits=0, last=0, sum=0;     
		temp=n;     
		
		while(temp>0)    
		{   
			temp = temp/10;   
			digits++;   
		}   
		
		temp = n;   
		
		while(temp>0)   
		{         
			last = temp % 10;     
			sum +=  (Math.pow(last, digits));      
			temp = temp/10;   
		}  
  
		if(n==sum)   
  
			return true;      
  
		else return false;   
}   
  
	public static void main(String args[])     
	{     
		int num;   
		Scanner sc= new Scanner(System.in);  
		System.out.print("Enter the max: ");    
		
		num=sc.nextInt();  
		System.out.println("Armstrong Number up to "+ num + " are: ");  
		sc.close();
		
		for(int i=0; i<=num; i++)   
			if(isArmstrong(i))   
				System.out.print(i+ ", ");  
	}   
}