import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.net.MalformedURLException;
import java.net.URL;

/**
 * @author SungChul-Kim
 */
public class ContentClassGetter {

	public static void main(String[] args) {
		try {
			URL u = new URL("http://www.naver.com");
			Class<?>[] types = new Class[3];
			types[0] = String.class;
			types[1] = Reader.class;
			types[2] = InputStream.class;
			Object o = u.getContent(types);

			if (o instanceof String) {
				System.out.println(o);
			} else if (o instanceof Reader) {
				int c;
				Reader r = (Reader) o;
				while ((c = r.read()) != -1) System.out.println((char) c);
				r.close();
			} else if (o instanceof InputStream) {
				int c;
				InputStream in = (InputStream) o;
				while((c = in.read()) != -1) System.out.write(c);
				in.close();
			} else {
				System.out.println("Error: unexpected tyupe " + o.getClass());
			}
		} catch (MalformedURLException ex) {
			System.err.println(ex);
		} catch (IOException ex) {
			System.err.println(ex);
		}
	}

}