Armstrong number in java:

an Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself.

For example: 371 is an Armstrong number since 3*3*3 + 7*7*7 + 1*1*1 =371.

example :

public class Armstrong 
{
  public static void main(String[] args) 
	{
		 int num = 370,  temp, total = 0 ;
                 int number =num;
	         while (num > 0)
	       {
	            temp = num % 10;    //3 5 1
	            total = total + temp*temp*temp;
	            //(0+3*3*3=27)  (27= 27+5*5*5=152) (152=152+*1*1*1=153)
	            num= num/10;  //(153/10= 15)   //(15/10=1)  (1=1/10=0)
	        }
	        System.out.println(total);
	        if(number==total)
	        {
	           System.out.println("is an Armstrong number");
	        }
	        else 
	        {
                   System.out.println(" is not an Armstrong number");	        	
	        }
	}
	
} 

output: