Automorphic Number

 

import java.util.Scanner; 

import java.lang.Math; 

public class Main

{

public static void main(String args[])    

{    

Scanner in = new Scanner(System.in); 

System.out.print("Enter a number to check: "); 

 

int num = in.nextInt(); 

int count=0;

int square = num*num;

int temp = num;

while(temp>0) 

{ 

count++;

temp=temp/10; 

}  

int lastDigit = (int) (square%(Math.pow(10, count)));  

if(num == lastDigit) 

System.out.println(num+ " is an automorphic number."); 

else 

System.out.println(num+ " is not an automorphic number."); 

} 

}