What will be the output of the following Java program?

import java.net.*;
    class networking 
    {
        public static void main(String[] args) throws Exception 
        {
            URL obj = new URL("https://www.sanfoundry.com/javamcq");
            URLConnection obj1 = obj.openConnection();
            int len = obj1.getContentLength();
            System.out.print(len);
        }
    }