Perfect Square

package perfectsquare;
import java.util.Scanner;
public class PerfectSquare {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.print("This program will decide if a number you enter is a perfect square.");
        System.out.print("\nPlease input a number: ");
        double num, square = 0;
        num = input.nextInt();
        square = (double) Math.sqrt(num);
        square = (int)square;
        square = Math.pow(square,2);
        if (square ==num){
            System.out.print("This number is a perfect sqaure.");
        }else{
            System.out.println("This number is not a perfect square");
        }
    }

}