If ( windowsIsMacAddress(macAddressCandidate) ) this line give me error

Question

hi master sir i try to
this link code http://forum.java.sun.com/thread.jspa?threadID=245711&forumID=4
see my code
private final static String getMacAddress() throws IOException {
          String os = System.getProperty("os.name");
          try {
               if(os.startsWith("Windows")) {
                    return windowsParseMacAddress(windowsRunIpConfigCommand());
               } else if(os.startsWith("Linux")) {
                    return linuxParseMacAddress(linuxRunIfConfigCommand());
               } else {
                    throw new IOException("unknown operating system: " + os);
          } catch(ParseException ex) {
               ex.printStackTrace();
               throw new IOException(ex.getMessage());
private final static String windowsParseMacAddress(String ipConfigResponse) throws ParseException {
          String localHost = null;
          try {
               localHost = InetAddress.getLocalHost().getHostAddress();
          } catch(java.net.UnknownHostException ex) {
               ex.printStackTrace();
               throw new ParseException(ex.getMessage(), 0);
          StringTokenizer tokenizer = new StringTokenizer(ipConfigResponse, "\n");
          String lastMacAddress = null;
          while(tokenizer.hasMoreTokens()) {
               String line = tokenizer.nextToken().trim();
               // see if line contains IP address
               if(line.endsWith(localHost) && lastMacAddress != null) {
                    return lastMacAddress;
               // see if line contains MAC address
               int macAddressPosition = line.indexOf(":");
               if(macAddressPosition <= 0) continue;
               String macAddressCandidate = line.substring(macAddressPosition + 1).trim();
               if(windowsIsMacAddress(macAddressCandidate)) {
                    lastMacAddress = macAddressCandidate;
                    continue;
          ParseException ex = new ParseException("cannot read MAC address from [" + ipConfigResponse + "]", 0);
          ex.printStackTrace();
          throw ex;
private final static String windowsRunIpConfigCommand() throws IOException {
          Process p = Runtime.getRuntime().exec("ipconfig /all");
          InputStream stdoutStream = new BufferedInputStream(p.getInputStream());
          StringBuffer buffer= new StringBuffer();
          for (;;) {
               int c = stdoutStream.read();
               if (c == -1) break;
               buffer.append((char)c);
          String outputText = buffer.toString();
          stdoutStream.close();
          return outputText;
public final static void main(String[] args) {
          try {
               System.out.println("Network infos");
               System.out.println(" Operating System: " + System.getProperty("os.name"));
               System.out.println(" IP/Localhost: " + InetAddress.getLocalHost().getHostAddress());
               System.out.println(" MAC Address: " + getMacAddress());
          } catch(Throwable t) {
               t.printStackTrace();
but sir only this line give me eror
if ( windowsIsMacAddress(macAddressCandidate) )
symbol : method windowsIsMacAddress(java.lang.String)
location: class webapplication42.Page1
if(windowsIsMacAddress(macAddressCandidate)) {
1 error
please give me idea how i get mac address
thank's
aamir

Answer 1

Complete step 17 (2 steps after you paste the code)
17. Right-click in the source and choose Fix Imports from the pop-up menu.
I suggest that you complete the following 2 tutorials before you try to do the advanced ones.
http://developers.sun.com/jscreator/learning/tutorials/2/jscintro.html
http://developers.sun.com/jscreator/learning/tutorials/2/helloweb.html