Package - Armstrong number

/*

Write a java program using package to find the number is Armstrong number

Steps :

Create a parent folder (ooplab) and sub folder (Armstrong).

Create the files ArmstrongNumber.java in sub folder for finding Armstrong number

Create the files ArmNum.java in parent folder – to import Armstrong package, create the object and invoke the methods.

Compile ArmstrongNumber.java

Compile and execute ArmNum.java

*/

// ArmstrongNumber.java

// To be created and saved in folder Armstrong.

// Compile and create the bytecode file (ArmstrongNumber.class)

package Armstrong;

import java.util.*;

public class ArmstrongNumber

{

     Scanner s = new Scanner(System.in);

    

     public void fnArmstrong()

     {

          System.out.print("Enter a Number : ");

          int N = s.nextInt();

         

          int tmp = N;

          int sum = 0;

         

          while(tmp>0)

          {

              int r = tmp%10;

              sum += (r*r*r);

              tmp/=10;

          }

         

          if(sum==N)

              System.out.println(N+" is an Armstrong Number");

          else

              System.out.println(N+" is not an Armstrong Number");

     }

}

// ArmNum.java

// To be created and saved in parent folder.

// import the package, compile and execute

import Armstrong.*;

class ArmNum

{

     public static void main(String as[])

     {

          ArmstrongNumber an = new ArmstrongNumber();

          an.fnArmstrong();

     }

}