Solved

Regular expression to Extract mac address and wireless network id in java

Posted on 2010-11-23
4
971 Views
Last Modified: 2012-06-21
Hi Experts:

I need an expression to extract mac address and wireless network id:

00-1E-4C-32-DA-2E:ssid1

Right now I use the following code (I have posted the code fragment)

    Pattern pattern = Pattern.compile("(.*):(.*)");
      Matcher matcher = pattern.matcher(Csid);
      if(matcher.matches())
      {
         System.out.print("Key:");
         bssid = matcher.group(1);
         System.out.println(matcher.group(1));
         System.out.print("Value:");
         System.out.println(matcher.group(2));

Csid is the String contain mac address and ssid.

But this code does not work when there is no wireless network id present, for example:

00-1E-4C-32-DA-2E

Please give me an expression to parse and extract both and the code fragment.
00-1E-4C-32-DA-2E:ssid1
or
00-1E-4C-32-DA-2E

It should extact both.

Best Regards,

Sunnybrad
0
Comment
Question by:sunnybrad
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 500 total points
ID: 34199385
Try the below. If groupCount == 2, only collect group 2 if it's not null
Pattern p = Pattern.compile("((?:[0-9A-F]{2}-){5}[0-9A-F]{2})(:[^ ]+)*");

Open in new window

0
 

Author Comment

by:sunnybrad
ID: 34199442
Hi:

Thanks for the comment, please give some comments whats groupcount. Shall I fir this in my code.

Thanks

Sunnybrad
0
 

Author Comment

by:sunnybrad
ID: 34199497
Hi:

How do you extract group one and group two the above regular expression breaks as well at run-time.

Best regards

Sunnybrad
0
 

Author Comment

by:sunnybrad
ID: 34199571
Hi:

I have solved this by saying if you don't match (.*):(.*).

Then the ssid part is null.

Thanks

Sunnybrad
0

Featured Post

Get MySQL database support online, now!

At Percona’s web store you can order your MySQL database support needs in minutes. No hassles, no fuss, just pick and click. Pay online with a credit card.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Checking the Alert Log in AWS RDS Oracle can be a pain through their user interface.  I made a script to download the Alert Log, look for errors, and email me the trace files.  In this article I'll describe what I did and share my script.
In this article we have discussed about the OS X EI Capitan and how to fix Wi-Fi issue in OS X El Capitan. We have explained how to delete system level preferences and create a new Wi-Fi location to resolve Wi-Fi issue.
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:
This Micro Tutorial will show you how to maximize your wireless card to its maximum capability. This will be demonstrated using Intel(R) Centrino(R) Wireless-N 2230 wireless card on Windows 8 operating system.
Suggested Courses

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question