decimal or integer java

import java.util.Scanner;
public class MyClass {
    public static void main(String args[]) {
      Scanner myObj = new Scanner(System.in);
      System.out.println("input a number: ");
      double num = myObj.nextDouble();
      if (num % 1 == 0){
          System.out.println("This number is integer");
      }
      else{
          System.out.println("this number is decimal");
      }


    }
}