Date constructor java

Hello I am trying to get the current date at java at a Class I created but everything fails. I've seen in many sites e.g. http://www.mkyong.com/java/java-date-and-calendar-examples/ that the date constructor has no arguments e.g. Date date = new Date();

Now in my project I try to use it like this and I get the error

that The constructor Date() is undefined

How is this possible? I give you the full code so far

import java.sql.Date;
import java.text.SimpleDateFormat;


public class Utility {


        String title;
        int ID;
        Date date;

        Utility(String t,int ID){
            this.ID=ID+1;
            title=t;
            SimpleDateFormat sdf = new SimpleDateFormat("dd/M/yyyy");
            Date a=new Date();// I get the error here
            String date = sdf.format(a);
            System.out.print(date);


        }
}

I work at Eclipse IDE. Can you help me?