Use regular expression to get web page title : HTML Parser « Network Protocol « Java

Use regular expression to get web page title

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
  public static void main(String[] argv) throws Exception {

    URL url = new URL("");
    URLConnection urlConnection = url.openConnection();
    DataInputStream dis = new DataInputStream(urlConnection.getInputStream());
    String html = "", tmp = "";
    while ((tmp = dis.readUTF()) != null) {
      html += " " + tmp;

    html = html.replaceAll("\\s+", " ");
    Pattern p = Pattern.compile("<title>(.*?)</title>");
    Matcher m = p.matcher(html);
    while (m.find() == true) {


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