Get content length for a URL connection in Java

//from w  ww.ja  v a  2  s .  co  m
import java.net.URL;
import java.net.URLConnection;

public class Main {

  public static void main(String args[]) throws Exception {

    URL u = new URL("http://www.google.com");
    URLConnection uc = u.openConnection();
    System.out.println("Content-length: " + uc.getContentLength());
  }

}