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import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Date;
public class Main{
public static void main(String args[]) throws Exception {
URL url = new URL("http://www.google.com");
HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
int len = httpCon.getContentLength();
if (len == -1)
System.out.println("Content length unavailable.");
else
System.out.println("Content-Length: " + len);
}
}
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