Have errors in my code

Question

i tryed to extracte links from url page. and now i have some errors can you place help me.my errors only in the first part of code.
thanks alot.
package hw;
import java.*;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;
import javax.swing.text.html.parser.Parser;
import org.w3c.dom.NodeList;
public class copy {
     public static void main(String[] args){     
     Collection<String>  links = new ArrayList<String>();
     try {
String target=null;
          target = target.trim( );
          QueryString query = new QueryString("search", target);
       URI uriLink = new URI("http://search.dmoz.org/cgi-bin/search?" + query);
       Parser parser = new Parser(null);
      parser.setInputHTML(htmlBody);
       NodeList list = parser.extractAllNodesThatMatch(new NodeClassFilter (LinkTag.class));
       for (int i = 0; i < list.size (); i++){
        LinkTag extracted = (LinkTag)list.elementAt(i);
         String extractedLink = extracted.getLink();
         links.add(extractedLink);
     } catch (Exception e) {
       e.printStackTrace();
}}}package hw;
import java.net.URLEncoder;
import java.io.UnsupportedEncodingException;
public class QueryString {
private StringBuffer query = new StringBuffer();
public QueryString() {}
public QueryString(String name, String value) {
encode(name, value);
public synchronized void add(String name, String value) {
query.append('&');
encode(name, value);
private synchronized void encode(String name, String                value) {
          try {
query.append(URLEncoder.encode(name, "UTF-8"));
query.append('=');
query.append(URLEncoder.encode(value, "UTF-8"));
catch (UnsupportedEncodingException ex) {
throw new RuntimeException(
               "Broken VM does not support UTF-8");
public String getQuery() {
return query.toString();
public String toString() {
return getQuery();

Answer 1

i wrote anther code but still don't know what are the errors.
thanks for the time.
package hw;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import javax.swing.text.MutableAttributeSet;
import javax.swing.text.html.HTML.Attribute;
import javax.swing.text.html.HTML.Tag;
import javax.swing.text.html.HTMLEditorKit.ParserCallback;
import javax.swing.text.html.parser.ParserDelegator;
import com.macfaq.net.QueryString;
public class hwOne {
  public final static void main(String[] args) throws Exception
    final ArrayList<String> list = new ArrayList<String>();
    ParserDelegator parserDelegator = new ParserDelegator();
    ParserCallback parserCallback = new ParserCallback() {
      public void handleText(final char[] data, final int pos) {
      public void handleStartTag(Tag tag, MutableAttributeSet attribute, int pos) {
        if (tag == Tag.A) {
          String address = (String) attribute.getAttribute(Attribute.HREF);
          list.add(address);
      public void handleEndTag(Tag t, final int pos) {
      public void handleSimpleTag(Tag t, MutableAttributeSet a, final int pos) {
      public void handleComment(final char[] data, final int pos) {
      public void handleError(final java.lang.String errMsg, final int pos) {
    String target = null;
     try     
     BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
     target= in.readLine();     
     catch(IOException e)
     System.out.println("IOException has been caught");
    target = target.trim( );
    QueryString query = new QueryString("search", target);
    parserDelegator.parse(new FileReader("http://search.dmoz.org/cgi-bin/search?" + query), parserCallback, false);
    System.out.println(list);
   the errors:
vit
Exception in thread "main" java.io.FileNotFoundException: http:\search.dmoz.org\cgi-bin\search?search=vit (The filename, directory name, or volume label syntax is incorrect)
     at java.io.FileInputStream.open(Native Method)
     at java.io.FileInputStream.<init>(Unknown Source)
     at java.io.FileInputStream.<init>(Unknown Source)
     at java.io.FileReader.<init>(Unknown Source)
     at hw.hwOne.main(hwOne.java:62)