AUTOMORPHIC NUMBER

AUTOMORPHIC NUMBER:

An automorphic number is a number whose square ends in the same digits as the number itself.

Examples of automorphic numbers : 5, 6 and 76

/*Java program to find given number is automophic number or not*/

import java.util.*;

class AutomorphicNumber

{

  public static void main(String args[]) throws Exception

  {

    Scanner sc = new Scanner(System.in);

    System.out.print("Enter a Number : "); // Inputting the number

    int n = sc.nextInt();

    int sq = n*n; // Finding the square

    String num = Integer.toString(n); // Converting the number to String

    String square = Integer.toString(sq); // Converting the square to String

    if(square.endsWith(num)) // If the square ends with the number then it is Automorphic

        System.out.print(n+" is an Automorphic Number.");

    else

        System.out.print(n+" is not an Automorphic Number.");

    }

}

OUTPUT:

Enter a Number : 5

5 is an Automorphic Number.

Enter a Number : 9

9 is not an Automorphic Number.