Get all hyper links from a web page : HTML Parser « Network « Java Tutorial

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;

import javax.swing.text.MutableAttributeSet;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTMLEditorKit;
import javax.swing.text.html.parser.ParserDelegator;

public class Main {
  public static void main(String args[]) throws Exception {
    URL url = new URL(args[0]);
    Reader reader = new InputStreamReader((InputStream) url.getContent());
    System.out.println("<HTML><HEAD><TITLE>Links for " + args[0] + "</TITLE>");
    System.out.println("<BASE HREF=\"" + args[0] + "\"></HEAD>");
    System.out.println("<BODY>");
    new ParserDelegator().parse(reader, new LinkPage(), false);
    System.out.println("</BODY></HTML>");
  }
}

class LinkPage extends HTMLEditorKit.ParserCallback {

  public void handleStartTag(HTML.Tag t, MutableAttributeSet a, int pos) {
    if (t == HTML.Tag.A) {
      System.out.println("<A HREF=\"" + a.getAttribute(HTML.Attribute.HREF) + "\">"
          + a.getAttribute(HTML.Attribute.HREF) + "</A><BR>");
    }
  }

}

19.26.HTML Parser
	19.26.1.	Getting the Links in an HTML Document
	19.26.2.	Getting the Text in an HTML Document
	19.26.3.	Escape HTML special characters from a String
	19.26.4.	Using javax.swing.text.html.HTMLEditorKit to parse html document
	19.26.5.	Extract links from an HTML page
	19.26.6.	extends HTMLEditorKit.ParserCallback
	19.26.7.	HTML parser based on HTMLEditorKit.ParserCallback
	19.26.8.	Find and display hyperlinks contained within a web page
	19.26.9.	Get all hyper links from a web page
	19.26.10.	HTML Parser