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How to lock a folder kurja-kurdoh15-Jul-11 8:45 kurja-kurdoh 15-Jul-11 8:45  kindly help me how to lock a folder with java code Re: How to lock a folder Richard MacCutchan15-Jul-11 9:23 Richard MacCutchan 15-Jul-11 9:23  What do you mean by "lock"? The best things in life are not things. Re: How to lock a folder RossouwDB19-Jul-11 1:39 RossouwDB 19-Jul-11 1:39  If you mean to lock a folder in such a way that nobody can gain access to the folder, then you need to look at JNI, since folder locking is handled by the operating system, and not by java explicitly. Think of it as setting up access rights to a folder F1 for person A, but not person B. So is B now attempts to open F1, a nice message and loud boom will announce that access is denied. This is done by the operating system. Have a look at JNI: Java Native Interface[^] Java Native Interface Tips[^] Java Native Interface: Programmer's Guide and Specification[^] Otherwise, if you meant "how to lock a file during editing", have a look at this: How can I lock a file using java (if possible)[^] Re: How to lock a folder jschell19-Jul-11 8:36 jschell 19-Jul-11 8:36  Probably be easier and faster to find an OS command and use Runtime.exec. Analytics TheSameLeon13-Jul-11 8:44 TheSameLeon 13-Jul-11 8:44  I want to develop analytics application in java. Can somebody help me with how to start, what should looking into interms of technology and example codes. Thanx Re: Analytics Richard MacCutchan13-Jul-11 22:01 Richard MacCutchan 13-Jul-11 22:01  This question is impossible to answer in a technical forum, as it pertains more to system design than programming. If you need help learning Java then I would suggest you start here[^]. The best things in life are not things. Re: Analytics RossouwDB19-Jul-11 1:50 RossouwDB 19-Jul-11 1:50  To start of, write down: - What is it that needs to be analysed? - How/where will this information come from? - How does it need to be displayed, i.e., do you need graphs or charts, or is a simple spreadsheet sufficient - Who needs the information, this will indicate the level of analyses required, i.e., for a high level person, the information needs to be well analysed and formatted, if it is for auditing purposes, then you might not want to analyse the data at all (rather pass it on to the auditors and let them take care of it) - Is there a schedule required, or is it only once off? - How should the results be accessed, from the web, emailed, posted, etc. (You should probably dump the results in a pdf format, in which case you can have a look a iTextSharp - I love this library!!! - After you have received the results, does the person reading the results require it to be modified, i.e, If I change this value, what would the effects be in 5 years time? - How important is speed? This will be determined by when the analyses should be done, if it is a nightly batch job, then speed is not that important, anything else, speed is important. - The program itself, is a console application sufficient, or should it look pretty? If prettiness is a factor, look at WPF or Silverlight (depending on whether it is web-based, or standalone). This will also indicate the speed/performance. - Do you need additional hardware, such as a more powerful server that can take the processing punch This is all I can think of, but based on what you provided, this would be a good place to start. Based on your assessment - or, requirements analysis - you should then look at technology. Creating an executable jar file in Eclipse IDE? cihata8713-Jul-11 0:42 cihata87 13-Jul-11 0:42  I developed a project in Eclipse. There are 2 java classes in my project. One of them is Server.java and the other one is Client.java. In order to run Client.java, I have to run Server.java firstly. When I creating an executable jar file, should I set the order that I mentioned above? I want when I click on the exe file firstly Server should run and then Client. Any suggestions? Thanks.. Re: Creating an executable jar file in Eclipse IDE? TorstenH.13-Jul-11 2:00 TorstenH. 13-Jul-11 2:00  Set up a 3. class to start the party. Add a Thread[^] and let the client start 5 sec. after the server. regards Torsten I never finish anyth... Re: Creating an executable jar file in Eclipse IDE? csanuragjain16-Jul-11 23:26 csanuragjain 16-Jul-11 23:26  In server.java make use of Runtime.getRuntime.exec(command) to execute client.java Creating a program similar "offline explorer" diba_gh12-Jul-11 1:02 diba_gh 12-Jul-11 1:02  I need a program like "offline explorer". I could get someone to help me do this. Re: Creating a program similar "offline explorer" TorstenH.12-Jul-11 1:12 TorstenH. 12-Jul-11 1:12  I recommend to ask Larry Page and Sergey Brin. They do this all the time - it's called Google. A fantastic website where you can enter "offline browsing freeware"[^]. The result is amazing! regards Torsten I never finish anyth... Re: Creating a program similar "offline explorer" diba_gh12-Jul-11 1:55 diba_gh 12-Jul-11 1:55  Thank you for the help, but I want to source code a Java program that acts like offline explorer. Re: Creating a program similar "offline explorer" TorstenH.12-Jul-11 2:51 TorstenH. 12-Jul-11 2:51  Ah - now we are talking about software development. what's your skills? Any ideas about which tools to use? regards Torsten I never finish anyth... Re: Creating a program similar "offline explorer" Pete O'Hanlon12-Jul-11 3:57 Pete O'Hanlon 12-Jul-11 3:57  I recommend two pieces of flint and some kindling. Forgive your enemies - it messes with their heads My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility Re: Creating a program similar "offline explorer" TorstenH.12-Jul-11 4:41 TorstenH. 12-Jul-11 4:41  that would give the idea heat! And if he doesn't go for the project, he can even roast some bacon on it. That's a win-win! regards Torsten I never finish anyth... Re: Creating a program similar "offline explorer" Peinis12-Jul-11 16:44 Peinis 12-Jul-11 16:44  yes that is true..it is really a win-win solution. Which technologies should I use ? Sylvain_D11-Jul-11 6:00 Sylvain_D 11-Jul-11 6:00  Dear all, I'm a newbie in Java programming, actually, I'm a Microsoft programmer One of our customer asks me to develop an application using Open Source langages ! The application is easy: 1. A SQL (MySQL) database 2. A frontEnd to manage the SQL database (new user, changing password ...) 3. A frontEnd for users to see only their own environment (get usage statistics, profil ..) 4. WebServices for mobile system (it seems to be Microsoft Mobile 6 PDAs and maybe Android tablet) to get and update informations in the database So I started having a look at Jboss, GlassFish, JSF, Hibernate ....... arg, now I'm lost. What is your opinion ? For my application, what will be the best platform ? Or will it be a mixed technologies (I had also a look at ZendFramework) ? I know it's quite a general question, but I read so many different opinions on this platforms .. Thanks Sylvain Re: Which technologies should I use ? twseitex11-Jul-11 8:43 twseitex 11-Jul-11 8:43  Hi, use products of Microsoft like Net etc.. If possbile, try IDE Eclipse with MS software. Re: Which technologies should I use ? TorstenH.11-Jul-11 21:14 TorstenH. 11-Jul-11 21:14  - Eclipse - Hibernate - a good book for JAVA in general. regards Torsten I never finish anyth... Re: Which technologies should I use ? Sylvain_D11-Jul-11 23:37 Sylvain_D 11-Jul-11 23:37  Ok Re: Which technologies should I use ? Peinis12-Jul-11 16:45 Peinis 12-Jul-11 16:45  i love hibernate..it is really amazing and powerful Re: Which technologies should I use ? David Skelly11-Jul-11 22:35 David Skelly 11-Jul-11 22:35  It's impossible to answer without knowing more about what you are trying to build. For example, when you say a "front end" what does that mean? Desktop? Browser-based? Cross-platform? Windows only? Thin client? Thick client? Web 2.0? If it is a smaller-scale web application then you may find that some off the shelf frameworks like Grails or Seam might help. If it is a larger scale desktop application then maybe the Netbeans platform or Eclipse RCP might be of interest. Hibernate can help with the database layer, but has its limitations particularly if you are dealing with a legacy database which is not under your control. Without more information there's a limit to how much advice we can give, I'm afraid. Re: Which technologies should I use ? Sylvain_D11-Jul-11 23:33 Sylvain_D 11-Jul-11 23:33  FrontEnd is a browser based application .. web 2.0, why not It's a small scale web application. I'll look at Grails or Seam. Re: Which technologies should I use ? Richard MacCutchan11-Jul-11 22:45 Richard MacCutchan 11-Jul-11 22:45  Sylvain_D wrote: One of our customer asks me to develop an application using Open Source langages ! I would suggest you go back to your customer and ask exactly what they mean by 'open source' in this context. Jumping from that question to feeling that you need to use some Java technology to solve it is a somewhat sideways step. If your competence is in Microsoft programming then that would be the best way to go, as you would probably get the product completed faster. Forget the technology for the moment and concentrate on figuring out the best way to solve your customer's problem. The best things in life are not things.

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