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  • Advice about a good Java book?

    - by camac1
    Hi people, I am new to Java but have experience programming in C/C++/C#. I wanted to learn Java SE 6 first before moving to Java EE 6. After making some research online for appropriate Java SE 6 books, I found that these are appropriate for me to get an excellent idea of Java SE 6: 1) Head First Java, 2nd Edition 2) An Intermediate Level Book <----------- 3) Effective Java (2nd Edition) 4) Java Concurrency in Practice 5) Java Generics and Collections 6) Java Concise Reference Series: Swing And AWT 7) Java Reflection in Action However, I am having trouble choosing an Intermediate Level Book which will provide me with breadth and depth in Java SE 6. I was thinking about the book "Thinking in Java (4th Edition)"....Unfortunately, its deals with Java SE 5 and not the latest version. Could anybody please advice me an intermediate level book which could provide me with breadth and depth in Java SE 6. Regards

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  • Reverse massive text file in Java

    - by DanJanson
    What would be the best approach to reverse a large text file that is uploaded asynchronously to a servlet that reverses this file in a scalable and efficient way? text file can be massive (gigabytes long) can assume mulitple server/clustered environment to do this in a distributed manner. open source libraries are encouraged to consider I was thinking of using Java NIO to treat file as an array on disk (so that I don't have to treat the file as a string buffer in memory). Also, I am thinking of using MapReduce to break up the file and process it in separate machines. Any input is appreciated. Thanks. Daniel

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  • Best solution for language documentation.

    - by Simone Margaritelli
    I'm developing a new object oriented scripting language and the project itself is quite ready for audience now, so i'm starting to think about a serious (not as "drafty" as it is right now) way of document its grammar, functions from standard library and standard library classes. I've looked a bit around and almost every language hash its own web application for the documentation, Python uses Sphinx for instance. Which is the best PHP (don't have the time/will to install mod_who_knows_what on my server) application to accomplish this? I've used mediawiki a bit but i found its tag system a little bit hard to use in this context. Thanks for your answers.

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  • How to develop an app for Mac OS X that keeps reading everything the user types in?

    - by Elomar Nascimento dos Santos
    Hello, everybody. I'm here to ask if any of you know how to develop an app for Mac OS X that keeps reading everything the user types in. An example of app that implements this behavior is Text Expander. Text Expander reads everything the user types in, searching for abbreviations previously added on it. When one of this abbreviations is found, Text Expander replace the abbreviation form for the entire content related to that abbreviation. So, I would like to know what resource of Objective-C or Cocoa let you do this kind of stuff. P.S.: Just to mention, I'm not thinking about developing something like a key logger. I'm just curious and thinking about at developing a snippet platform.

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  • When should I write my own Look and Feel for Java Swing instead of customizing one?

    - by Jonas
    I have used a few different Look and Feels for Java Swing, but I don't really like anyone to 100% so I often end up with customizing it a lot. Sometimes I am thinking about if it is a better idea to write my own LaF (by extending an existing one), but I don't really know. For the moment, I mostly use Nimbus, but I change all colors (to darker ones) and rewrite the appearance of some components, like sliders and scrollbars. I also mostly customize all tables and I am thinking about to change the look of a few other components. When is it recommended to create a new Look-and-Feel instead of customizing one? What are the pros and cons? I.e. customize Nimbus or create a new one by extending Nimbus? Related article: Creating a Custom Look and Feel (old)

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  • MCV/MVP Patterns and Applications that interface with Hardware (DAQ/PLC/etc)

    - by Ryan
    I've been reading a lot about the MCV and MVP patterns for use with UI and it seems like a really nice powerful way to handle user interfaces. I am - however - having a difficult time deciding how this could integrate into a system where data in the model is created from a Data Acquisition System or Serial/Ethernet devices. There is also the added step that 70% of application interaction is performed by a PLC instead of a live user. It seems that for apps that just read/write & manipulate information from a database this works great, but how does does hardware and automation fit into these patterns? Is it as simple as another controller (for lack of a better term) that interacts with hardware that manipulates data and writes to a model? Maybe I am over thinking this or thinking too simply, so any advice would be great. I'm not quite sure where I'm going with this, so if something doesn't make sense or I was too vague leave me a comment. Thanks!

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  • Windows Power State change event notification in Qt

    - by Surjya Narayana Padhi
    Hi Geeks, I developing a GUI in QT where I have to show the battery status icon. To get the system power status, I am using the windows API. But to show status anytime , do i need to use a thread to continuously read and display the power status? I am thinking of using event handler. But not sure how to implement. I am thinking that for just one status icon I will run a thread. Anybody has any better suggestion, please share.

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  • Exploring search options for PHP

    - by Joshua
    I have innoDB table using numerous foreign keys, but we just want to look up some basic info out of it. I've done some research but still lost. 1) How can I tell if my host has Sphinx installed already? I don't see it as an option for table storage method (i.e. innodb, myisam). 2) Zend_Search_Lucene, responsive enough for AJAX functionality of millions of records? 3) Mirror my innoDB with a myisam? Make every innodb transaction end with a write to the myisam, then use 1:1 lookups? How would I do this automagically? This should make MyISAM ACID-compliant and free(er) from corruption no? 4) PostgreSQL fulltext queries don't even look like SQL to me wtf, I don't have time to learn a new SQL syntax I need noob options 5) ???????????????????? This is high volume site on a decently-equipped VPS Thanks very much for any ideas.

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  • Couchbase (ex. membase) solution to dump all keys in a bucket

    - by j99
    I was googling around and found various python + tap solutions that should enable me to dump all keys from a bucket but none of them worked for me. I have a bucket at port 11230 and I need to get a dump of all keys in order to fill them into sphinx search engine. If I execute: # python /opt/couchbase/lib/python/tap_example.py 127.0.0.1:11230 I get the following output: info: New bin connection from None error: uncaptured python exception, closing channel <tap.TapConnection connected at 0x7f5d287184d0> (<type 'exceptions.AssertionError'>: [/usr/lib/python2.6/asyncore.py|read|78] [/usr/lib/python2.6/asyncore.py|handle_read_event|428] [/opt/couchbase/lib/python/mc_bin_server.py|handle_read|325]) this error is the same even if I try some other host or port. I also tried many other python scripts that I found on forums and groups but all of them produced the same error. My primary development environment includes PHP & Perl on Debian linux box but I will take any solution that would just dump all the keys into plain text file. Thank you for any help!

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  • App Engine: Launching a script upon update/run

    - by kovshenin
    Hi all. I'm working with App Engine and I'm thinking about using the LESS CSS extension in my next project. There's no good LESS CSS library written in Python so I went on with the original Ruby one which works great and out of the box. I'd like App Engine to execute lessc ./templates/css/style.less before running the development server and before uploading the files to the cloud. What is the best way to automate this? I'm thinking: #run.sh: lessc ./templates/css/style.less .gae/dev_appserver.py --use_sqlite . And #deploy.sh lessc ./templates/css/style.less .gae/appcfg.py update . Am I on the correct path or is there a more elegant way of doing things, perhaps at the appcfg.py level? Thanks.

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  • Does Exchange have ability to run hidden mailboxes?

    - by MadBoy
    Hello, Title of my question may sound a little bit odd but I was thinking if Exchange 2010 or 2007 or any program that would work in conjunction with Exchange has ability to create this structure: Users having their normal mailboxes connected and using them as everyone would in Outlook 2003/2007/2010. Users having additional mailboxes (from old Exchange 2003) attached but hidden on demand of Administrator. For example administrator could easy disable them just like they never been attached making them invisible to users and everyone else. Would be good if such mailboxes could be easily removed out of system (lets say on external drive) by simple step not manual job for 100 mailboxes. Users without ability to copy/move their mails to outside storage (like a local .pst file)? Do you guys have any suggestions on this? I was thinking maybe using public folders but this seems like overkill and not really suited for this. And please don't ask me why I need this type of security (it's not something I requested).

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  • Extract anything that looks like links from large amount of data in python

    - by Riz
    Hi, I have around 5 GB of html data which I want to process to find links to a set of websites and perform some additional filtering. Right now I use simple regexp for each site and iterate over them, searching for matches. In my case links can be outside of "a" tags and be not well formed in many ways(like "\n" in the middle of link) so I try to grab as much "links" as I can and check them later in other scripts(so no BeatifulSoup\lxml\etc). The problem is that my script is pretty slow, so I am thinking about any ways to speed it up. I am writing a set of test to check different approaches, but hope to get some advices :) Right now I am thinking about getting all links without filtering first(maybe using C module or standalone app, which doesn't use regexp but simple search to get start and end of every link) and then using regexp to match ones I need.

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  • Best approch to dynamically filter .net objects

    - by maxba
    The project i´m working currently on has a way to define a filter to filter objects from a database. This filter is a pretty straitforward class containing filtercriteria that will be combined to a sql where-clause. The goal now is to use this filter class to filter .net objects as well. So the filter for example defines, that the title property of the object that it is applied to must contain some userdefined string etc. What are ways to approch this problem? What should the filter return instead of the sql where-clause and how can it be applied to the object? I´m thinking about this for hours and don´t yet have even a slight idea how to solve this. Been thinking about reflection, dynamic code execution, building expressions but still haven´t found an acutal starting point.

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  • How to study for MCTS 70-433 exam (SQL Server 2008 Database Development) and is it worth it?

    - by Mugen
    Hi, I'm working as a QA (Software Tester with 3 years of experience) and was thinking of getting some certifications for my career. I already have the ISTQB certification and was thinking of doing SCJP along with MCTS 70-433 certification (SQL Server 2008 Database Development) as the next move. So my question is this: 1) Who should go for the 70-433 certification and is it worth going for, for a career in QA? 2) What would be a good book to study for this? I'm just looking for a simple book that is written just to the point and not much bloated up such as technical bibles. Not that they aren't good but they just take up too much of time. Maybe something similar to the one written by Kathy Sierra & Bert Bates for SCJP. It is written in a very simple language and is enough to do SCJP. Edit: I'm still searching for answers to this. Thanks.

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  • converting compressed Rich text (C#)

    - by Code Smack
    Hello, I have a string with CompressedRichText in it. I want to uncompressed it to standard RTF and then to plain Text. I am using VS 2008 C# Windows Application. I found references to C++ code to do it, but nothing directly in C#. here is a sample of what I am thinking... not much code though... private string _CompressedRichText = "5A46751234E1234A3214C12D34213412346F4"; private void button1_Click(object sender, EventArgs e) { //Convert to Uncompressed RTF richTextBox1.Text = //Some action //Convert to text textBox1.Text = //some action } This will at least give you an example of what I am thinking.

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  • Database schema for simple stats project

    - by Bubnoff
    Backdrop: I have a file hierarchy of cvs files for multiple locations named by dates they cover ...by month specifically. Each cvs file in the folder is named after the location. eg', folder name: 2010-feb contains: location1.csv location2.csv Each CSV file holds records like this: 2010-06-28, 20:30:00 , 0 2010-06-29, 08:30:00 , 0 2010-06-29, 09:30:00 , 0 2010-06-29, 10:30:00 , 0 2010-06-29, 11:30:00 , 0 meaning of record columns ( column names ): Date, time, # of sessions I have a perl script that pulls the data from this mess and originally I was going to store it as json files, but am thinking a database might be more appropriate long term ...comparing year to year trends ...fun stuff like that. Pt 2 - My question/problem: So I now have a REST service that coughs up json with a test database. My question is [ I suck at db design ], how best to design a database backend for this? I am thinking the following tables would suffice and keep it simple: Location: (PK)location_code, name session: (PK)id, (FK)location_code, month, hour, num_sessions I need to be able to average sessions (plus min and max) for each hour across days of week in addition to days of week in a given month or months. I've been using perl hashes to do this and am trying to decide how best to implement this with a database. Do you think stored procedures should be used? As to the database, depending on info gathered here, it will be postgresql or sqlite. If there is no compelling reason for postgresql I'll stick with sqlite. How and where should I compare the data to hours of operation. I am storing the hours of operation in a yaml file. I currently 'match' the hour in the data to a hash from the yaml to do this. Would a database open simpler methods? I am thinking I would do this comparison as I do now then insert the data. Can be recalled with: SELECT hour, num_sessions FROM session WHERE location_code=LOC1 Since only hours of operation are present, I do not need to worry about it. Should I calculate all results as I do now then store as a stats table for different 'reports'? This, rather than processing on demand? How would this look? Anyway ...I ramble. Thanks for reading! Bubnoff

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  • Use google analytics custom events for feedback form.

    - by chacko
    I was thinking of having a simple feedback form in my website. It would be something like: Your Feedback will help us improve. [ ] and then a textfield/textarea where the user can type (let's say) up to 100 characters of feedback. Rather than handling it all myself on the serverside I was thinking to use google analytics (since my site is already wireup) and everytime a user writes a comment send a custom event to google analytics. I think it might work. Can people suggest a better approach or point out any problem with this idea thanks

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  • Self Modifying Code

    - by Betamoo
    I am recently thinking about writing self-modifying programs, I think it may be powerful and fun... So I am currently looking for a language that allow modifying program own code easily.. I read about C# and the ability to compile -and execute- code in runtime, but that is too hurting.. I am also thinking about assembly... it is easier there to change running code but it is not very powerful... Can you suggest me a powerful language -or a feature- that support modifying code in runtime..? Hint: That what I mean by modifying code in runtime Start: a=10,b=20,c=0 label1: c=a+b .... label1= c=a*b goto label1 Thanks

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  • practicing C over the summer

    - by Jefferson Shawn
    Hi, I'm a student with a bit of experience in Java and C++ (one semester each) Currently, I'm going through K&R and working on the exercises in the book. However, I was thinking of what I could work on over the summer since I'm almost done with K&R and I will have a lot of free time soon. I really like building command line applications so I was thinking of getting involved with the coreutils project somehow. My question is, is it too early for me to be messing with coreutils? Should I be working on something a bit simpler perhaps? I'm a bit new with the Linux/Open source world if that matters but I'm really enjoying it. I've done some project euler problems and I don't really like it that much.

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  • Passing a web service an unknown number of parameters

    - by Billyhole
    I'm relatively new to utilizing web services. I'm trying to create one that will be accepting data from a ASP.Net form whose input controls are created dynamically at runtime and I don't how many control values will be getting passed. I'm thinking I'll be using jQuery's serialize() on the form to get the data, but what do I have the web service accept for a parameter? I thought maybe I could use serializeArray(), but still I don't know what type of variable to accept for the JavaScript array. Finally, I was thinking that I might need to create a simple data transfer object with the data before sending it along to the web service. I just didn't wanna go through with the DTO route if there was a much simpler way or an established best practice that I should follow. Thanks in advance for any direction you can provide and let me know I wasn't clear enough, or if you have any questions.

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  • What's a good way to throw and handle events in PHP?

    - by techexpert
    Hi everyone, I am just trying to get a general idea about the event prcessing mechanism in PHP5 in as neat way as possible. First of all I understand that a PHP application is not exactly a persistent type, so the events may not make a lot of sense, but from the OO perspective it might be a very elegant way to "communicate" between the objects. So I am thinking that it would make sense to separate the events on the external events, such as $_POST & $_GET and the internal ones, i.e. function callbacks. As far as the external ones, is it a good idea to process the $_GETs and $_POSTs directly, or is it better to wrap them into an event of some sort? Also, in order to process the internal events, do you have to pass the reference to the event handler/dispatcher to each class so they know how to throw them? I was thinking to use the PEAR EventDispatcher to do the work, but I am open to other suggestions. Thank you!

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  • How do I hook into a game and write a script to manipulate it?

    - by Ethan
    Hey SO, I know this is a pretty open question but I was wondering how people go about writing scripts that will "play" a game, or manipulate it in some way. I had been thinking that I'd try to get a working AI to play a game for fun, but don't even really know where to start. Are there any good resources to learn this? What are good languages to use? Once I have the language, how do I get my script hooked into the game? I was thinking of just trying simple flash games, if that helps. Thanks a bunch!

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  • Read multiple strings from a file C++

    - by user69514
    Hi I need to read different values stored in a file one by one. So I was thinking I can use ifstream to open the file, but since the file is set up in such a way that a line might contain three numbers, and the other line one number or two numbers I'm not sure how to read each number one by one. I was thinking of using stringstream but I'm not sure if that would work. The file is a format like this. 52500.00 64029.50 56000.00 65500.00 53780.00 77300.00 44000.50 80100.20 90000.00 41000.00 60500.50 72000.00 I need to read each number and store it in a vector. What is the best way to accomplish this? Reading one number at a time even though each line contains a different amount of numbers?

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