[roots]

Correct me if i am wrong

Code:

public class demo {

	public static void main(String[] args) {
		assert isInt(2.2) ;
		assert ! isInt(2.0) ;
		System.out.println("Passed simple test");
	}
	
	public static boolean isInt(double number){		
		return ((Math.floor(number) - number ) == 0.0);
	}

}