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  • Creating java package on ubuntu?

    - by Gaurav_Java
    I am new to java. Here I am trying to create java package. And try to compile it from another directory . But there is an error like bash: /home/gaurav/Desktop/package2/B.java: Permission denied Here is fy first code and directory is /home/Desktop/package/A.java package package1; public class A { interface A1 { void show(); void display(); } } class B extends A { public void show() { System.out.println("This is show method()"); } public void display() { System.out.println("this is Display metthod()"); } } For compilation I did this command it's works fine. pwd is /home/gaurav javac /home/gaurav/Desktop/package/A.java When I try to compile B.java which is in my Other drive /media/gaurav/iPlay/package/B.java package package2; class B { public static void main(String args[]) { System.out.println("Reached in Main method of B"); package1.A Object = new A(); } } I tired this vommand (grom previous working directory) javac -cp /home/gaurav/Desktop/;/media/gaurav/iPlay/package/B.java Error Comes javac -cp /home/gaurav/Desktop/;/media/gaurav/iPlay/package/B.java javac: no source files Usage: javac <options> <source files> use -help for a list of possible options bash: /media/gaurav/iPlay/package/B.java: Permission denied What i am doing wrong? Please it my assignment I am not able to move further without this. I changed permissions.

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  • What is up with the Joy of Clojure 2nd edition?

    - by kurofune
    Manning just released the second edition of the beloved Joy of Clojure book, and while I share that love I get the feeling that many of the examples are already outdated. In particular, in the chapter on optimization the recommended type-hinting seems not to be allowed by the compiler. I don't know if this was allowable for older versions of Clojure. For example: (defn factorial-f [^long original-x] (loop [x original-x, acc 1] (if (>= 1 x) acc (recur (dec x) (*' x acc))))) returns: clojure.lang.Compiler$CompilerException: java.lang.UnsupportedOperationException: Can't type hint a primitive local, compiling:(null:3:1) Likewise, the chapter on core.logic seems be using an old API and I have to find workarounds for each example to accommodate the recent changes. For example, I had to turn this: (logic/defrel orbits orbital body) (logic/fact orbits :mercury :sun) (logic/fact orbits :venus :sun) (logic/fact orbits :earth :sun) (logic/fact orbits :mars :sun) (logic/fact orbits :jupiter :sun) (logic/fact orbits :saturn :sun) (logic/fact orbits :uranus :sun) (logic/fact orbits :neptune :sun) (logic/run* [q] (logic/fresh [orbital body] (orbits orbital body) (logic/== q orbital))) into this, leveraging the pldb lib: (pldb/db-rel orbits orbital body) (def facts (pldb/db [orbits :mercury :sun] [orbits :venus :sun] [orbits :earth :sun] [orbits :mars :sun] [orbits :jupiter :sun] [orbits :saturn :sun] [orbits :uranus :sun] [orbits :neptune :sun])) (pldb/with-db facts (logic/run* [q] (logic/fresh [orbital body] (orbits orbital body) (logic/== q orbital)))) I am still pulling teeth to get the later examples to work. I am relatively new programming, myself, so I wonder if I am naively looking over something here, or are if these points I'm making legitimate concerns? I really want to get good at this stuff like type-hinting and core.logic, but wanna make sure I am studying up to date materials. Any illuminating facts to help clear up my confusion would be most welcome.

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  • Entity Object Based on PL/SQL

    - by Manoj Madhusoodanan
    This blog describes how to create a PL/SQL based Entity Object.Oracle application has number of APIs and each API will perform numerous number of tasks.We can create PL/SQL based EO which will directly invoke the PL/SQL stored procedure from the EO. Here I am demonstrating using a standard API FND_USER_PKG.CREATEUSER.This API has x_user_name and x_owner as mandatory parameter.My task is to create a user through OAF page which will accept User Name and Password. Following steps needs to be performed to achieve the above scenario. 1) Create FndUserEO as follows Include all the API parameters and WHO columns in the EO. Make UserName and EncryptedUserPassword ( Here I am not using Encrypted Password. The column name is same as table column so I am keeping the same) column as mandatory. Generate VO. 2) Edit FndUserEOImpl and add the following 3) Attach FndUserVO to AM 4) Create the UI 5) Deploy following files to middle tier and restart the server.  Entity Object: xxcust.oracle.apps.fnd.user.schema.server.FndUserEO.xml xxcust.oracle.apps.fnd.user.schema.server.FndUserEOImpl.java View Object: xxcust.oracle.apps.fnd.user.server.FndUserVO.xml xxcust.oracle.apps.fnd.user.server.FndUserVOImpl.javaUser Interface: xxcust.oracle.apps.fnd.user.webui.CreateFndUserCO.java xxcust.oracle.apps.fnd.user.webui.CreateFndUserPG.xmlYou can test by giving User Name and Password.

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  • Issue in understanding how to compare performance of classifier using ROC

    - by user1214586
    I am trying to demystify pattern recognition techniques and understood few of them. I am trying to design a classifier M. A gesture is classified based on the hamming distance between the sample time series y and the training time series x. The result of the classifier are probabilistic values. There are 3 classes/categories with labels A,B,C which classifies hand gestures where there are 100 samples for each class which are to be classified (single feature and data length=100). The data are different time series (x coordinate vs time). The training set is used to assign probabilities indicating which gesture has occured how many times. So,out of 10 training samples if gesture A appeared 6 times then probability that a gesture falls under category A is P(A)=0.6 similarly P(B)=0.3 and P(C)=0.1 Now, I am trying to compare the performance of this classifier with Bayes classifier, K-NN, Principal component analysis (PCA) and Neural Network. On what basis,parameter and method should I do it if I consider ROC or cross validate since the features for my classifier are the probabilistic values for the ROC plot hence what shall be the features for k-nn,bayes classification and PCA? Is there a code for it which will be useful. What should be the value of k is there are 3 classes of gestures? Please help. I am in a fix.

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  • missing libjpeg.so.62 from ia32 shared library

    - by user170200
    I am trying to install a chemical/molecular biology modeling program called Molsoft ICM-Pro. Initially after downloading the program and trying to open, it gave me error messages that I was missing shared libraries, and after talking with my network administrator he recommended I install the ia32 shared libraries using sudo apt-get install ia32-libs Which gives sudo apt-get install ia32-libs Reading package lists... Done Building dependency tree Reading state information... Done ia32-libs is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. so I am assuming the libraries installed correctly, but now when I try to run the program I get this error: ubuntu:/home/reilly/icmd icm icm: error while loading shared libraries: libjpeg.so.62: cannot open shared object file: No such file or directory So my question is, where can I get the library containing libjpeg.so.62? Additionally, I was told I would need libXmu.so.6 and libtiff.so.3 . Is there a shared library that could be missing that would contain these files? I am an ubuntu noob, so sorry if the information I provided was unclear. Any help would be immensely appreciated! btw I am using ubuntu 12.04 dual boot with windows on an HP pavilion dv6

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  • DNS NAmeserver Aname and cname records [closed]

    - by David
    I am inexperienced in the configuration of DNS and have an issue with dominan hosting set up. I have two domains 'www.mydomain1.com' and 'www.mydomain2.com', with mydomain2 pointed at the same place as mydomain1. The domains were passed to me recently by the person who previoulsy controlled them. I have an account with Fasthosts in the UK. When I accepted the domains I could not access the DNS settings and inquired with fasthosts as to why. The reply was: The delegate hosting option for both domains were enabled and this is the reason why you were unable to find the option to edit the advanced DNS records. I have now disabled the delegate hosting option so you can now edit the advanced DNS records for both domains in your account. When I log into the Fasthost control panel now I can access the DNS controls but both domains have no A record or Cname record set up. I am concerned that Fasthosts have blatted the previous Nameserver entries and set me up on theirs but not added any record. 'www.mydomain1.com' currently still works but 'www.mydomain2.com' does not find the site anymore. I am worried I will lose mydomain1 to as the DNS changes filter through the system. my webhosting is at 'xxx.xxx.xxx.xxx/mydomain1.com/' and this is where I want both domains to point. Any advice would be much appreciated. One thing which is confusing me is that because I am on a shared server I have to put 'xxx.xxx.xxx.xxx/mydomain1.com/' to get to my site rather than just 'xxx.xxx.xxx.xxx'. The form on Fasthosts for the A name record only allows an IP to be entered - does it add the mydomain1.com/ onto the end itself? Thanks for any help given - I'm quite worried about this David

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  • Visual Studio Continued Excitement

    - by Daniel Moth
    As you know Visual Studio 2012 RTM’d and then became available in August (Soma’s blog posts told you that here and here), and the VS2012 launch was earlier this month (Soma also told you that here). Every time a release of Visual Studio takes place I am very excited, since this has been my development tool of choice for almost my entire career (from many years before I joined Microsoft). I am doubly excited with this release since it is the second version of Visual Studio that I have worked on and contributed major features to, now that I’ve been in the developer division (DevDiv) for over 4 years. Additionally, I am very excited about the new era that VS2012 starts with VSUpdate for continued customer value: instead of waiting for the next major version of VS to get new features, there is new infrastructure to enable friction-free updates. The first update will ship before the end of this year, and you can read more about it at Brian’s blog post. I also noticed that a CTP of the first quarterly update is available to download here. In the last two months, the VS2012 family of products we all worked on in DevDiv shipped, coinciding with the end of the Microsoft financial/review year, and naturally followed by a couple of organizational changes (e.g. see Jason’s blog post)… On a personal level, this meant that I was very lucky to have an opportunity present itself to me that I simply could not turn down, so I grabbed it! I’ll still be working on Visual Studio, but not in the Parallel Computing part of the C++ team; instead I will be PM-leading the VS Diagnostics team… Stay tuned for details of what is coming in that space, in the VS updates and in the next major VS release, as I am able to share them… Comments about this post by Daniel Moth welcome at the original blog.

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  • Installation of Tex Live via the terminal 12.04

    - by user74713
    I need to install upstream version of TeX Live for 12.04 to edit the manual for Ubuntu. I am having a difficult time installing it per the directions @ http://ubuntu-manual.org/getinvolved/editors#install-texlive. TeX Live documents are on my computer, but I am not able to run the install. No TeX Live program found on my computer. Any help is greatly appreciated! ~Thanx!~ Hello, my name is Chris. I am a student pursuing a career in technical writing. I would like to assist the Ubuntu community while gaining experience & building my resume. Below I have listed the prior attempts & links to view the posts of each attempt: Backports I have tried using the official backports of the latest (2012) TeX-Live via their PPA. Please refer to link below for the particulars. How do I install the latest 2012 TeX Live on 12.04? Latex I've also tried running Latex as suggested. Please refer to link below for the particulars. http://ubuntuforums.org/showthread.php?t=2019051 PPA Causing Issue?? or something else I came across a post concerning the ability to install programs via the terminal and am wondering if it may be my problem??? Please refer to link below for the particulars. PPA - TeX Live Cannot install anything through Terminal - apt-get -f install

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  • Struggling to get set up with JOGL2.0

    - by thecoshman
    I guess that Game Dev' is a more sensible place for my problem then SO. I did have JOGL1.1 set up and working, but I soon discovered that it did not support the latest OpenGL, so I started work on upgrading to JOGL2.0 it's not gone too well. Firstly, is it worth me trying to get JOGL to work, or should I just move over to LWJGL? I am fairly comfortable with OpenGL (via C++) and from what I did get working with JOGL1.1, I seem to be OK adapting to it. Assuming that I stick with JOGL, am I foolish for trying to use JOGL2.0? From what I can gather, JOGL2.0 is still in beta, but I am willing to go with it as I want to make use of the latest OpenGL I can. I have been using the Eclipse IDE and have set up a user library for JOGL, here is a screen shot of the configuration and I have added this user library to my own Eclipse project. the system variable %JOGL_HOME% points to "C:\Users\edacosh\Downloads\JOGL2.0" so that should work fine. Now, the problem I actually having, when I try to run my code, on the line GLProfile glp = GLProfile.getDefault(); The code stops with the following message... Exception in thread "main" java.lang.NoClassDefFoundError: com/jogamp/common/jvm/JVMUtil at javax.media.opengl.GLProfile.<clinit>(GLProfile.java:1145) at DiCE.DiCE.<init>(DiCE.java:33) at App.<init>(App.java:17) at App.main(App.java:12) Caused by: java.lang.ClassNotFoundException: com.jogamp.common.jvm.JVMUtil at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 4 more I have also set my project to ensure that it is using jre6 along with jdk6, as I was having some issues. I hope I have given you enough information to be able to help me. It probably doesn't help that I am rather new to Java, been developing in C++ for ages. Thanks

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  • Best practices for caching search queries

    - by David Esteves
    I am trying to improve performance of my ASP.net Web Api by adding a data cache but I am not sure how exactly to go about it as it seems to be more complex than most caching scenarios. An example is I have a table of Locations and an api to retrieve locations via search, for an autocomplete. /api/location/Londo and the query would be something like SELECT * FROM Locations WHERE Name like 'Londo%' These locations change very infrequently so I would like to cache them to prevent trips to the database for no real reason and improve the response time. Looking at caching options I am using the Windows Azure Appfabric system, the problem is it's just a key/value cache. Since I can only retrieve items based on keys I couldn't actually use it for this scenario as far as Im aware. Is what I am trying to do bad use of a caching system? Should I try looking into NoSql DB which could possibly run as a cache for something like this to improve performance? Should I just cache the entire table/collection in a single key with a specific data structure which could assist with the searching and then do the search upon retrieval of the data?

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  • Developing professionally for both iOS, Android, web - an insight

    - by Scott Roberts
    This is not really a question on how to develop for both, I know various cross platform ways and so on. But I more want to know from developer standpoint how hard it is to basically develop iOS, Android and web apps? I am currently in my first job as a mobile/web developer. I have already developed my first iPhone/iPad app and now I have to develop the app for android because the web version I tried just didn't perform as well as needed and web databases just did not seem to make the cut. But I am not sure it's possible to be good at developing all 3 in terms of remembering all the api's etc. I wouldn't say I have an issue with the programming languages just how to use the api's for the various platforms. Also, all the other languages I look at, in my spare time, just feel like I am spreading myself to thin. Is it feasible for one person to be developing ios, android and web apps? Should I think about reducing it to iOS and web based apps? I develop everything by myself, so I have no one to discuss what the best solutions are for everything and I am just trying to workout as I go along. So any cross platform developers out there? Do companies have different teams for different platforms? Any insight would just help me get my head together. Hopefully this question makes sense.

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  • DAO/Webservice Consumption in Web Application

    - by Gavin
    I am currently working on converting a "legacy" web-based (Coldfusion) application from single data source (MSSQL database) to multi-tier OOP. In my current system there is a read/write database with all the usual stuff and additional "read-only" databases that are exported daily/hourly from an Enterprise Resource Planning (ERP) system by SSIS jobs with business product/item and manufacturing/SCM planning data. The reason I have the opportunity and need to convert to multi-tier OOP is a newer more modern ERP system is being implemented business wide that will be a complete replacement. This newer ERP system offers several interfaces for third party applications like mine, from direct SQL access to either a dotNet web-service or a SOAP-like web-service. I have found several suitable frameworks I would be happy to use (Coldspring, FW/1) but I am not sure what design patterns apply to my data access object/component and how to manage the connection/session tokens, with this background, my question has the following three parts: Firstly I have concerns with moving from the relative safety of a SSIS job that protects me from downtime and speed of the ERP system to directly connecting with one of the web services which I note seem significantly slower than I expected (simple/small requests often take up to a whole second). Are there any design patterns I can investigate/use to cache/protect my data tier? It is my understanding data access objects (the component that connects directly with the web services and convert them into the data types I can then work with in my Domain Objects) should be singletons (and will act as an Adapter/Facade), am I correct? As part of the data access object I have to setup a connection by username/password (I could set up multiple users and/or connect multiple times with this) which responds with a session token that needs to be provided on every subsequent request. Do I do this once and share it across the whole application, do I setup a new "connection" for every user of my application and keep the token in their session scope (might quickly hit licensing limits), do I set the "connection" up per page request, or is there a design pattern I am missing that can manage multiple "connections" where a requests/access uses the first free "connection"? It is worth noting if the ERP system dies I will need to reset/invalidate all the connections and start from scratch, and depending on which web-service I use might need manually close the "connection/session"

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  • I need some career guidance, please.

    - by user18956
    Hi, I have been a teacher of guitar and music theory for the last ten years or so, and I have decided to get out of it and pursue something involving computers, but I am very confused about it all. I have no training related to programming besides a knowledge of xhtml and css - which I realize are not even programming languages. My problem is that I know I want to do something with either making video games, computer/online applications, or some other programming job, but I haven't a clue how to begin. I picked up a book from the Head First series entitled, Head First Programming that uses Python to teach programming concepts, but after that, I don't really know what is a good direction for me in terms of balancing career satisfaction with job availability and acceptable pay. I am not looking for a huge salary, I just want to be able to survive doing something I love, and which challenges me. I don't know even a single person involved in a related field, so I am in need of guidance. The first thing I would like to know is whether pursuing a career as a programmer for video games is a realistic option. I love video games, and play them all the time, and I have always wanted to make them. If this is an option, what would be the recommended course of action? What is a good language or technology to get involved in for the job market now? I have read that PHP/MySQL is a good place to find a job for some. Can I find a job without school, or do I need to got o college? Also, will the Python I learn in this book translate into any other language I need to learn? If it is anything like music, then I am sure it will, but I don't know much about programming - yet. And last, yet perhaps most important, is thirty years old too old to take such a radical redirection in careers? Thank you for any help you can offer. I really need it.

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  • Good Freelance models for web developers

    - by Matthew Underwood
    I am a web developer with four years of experience in PHP, MYSQL and experience in Javascript etc. One day I hope to develop a freelance career in web development. Areas of freelance that I am thinking of going towards includes Wordpress, Magento development along with bespoke applications. I am also thinking of doing some consultancy work for clients and businesses when I build up some more experience and technical knowledge. I want to offer a web development service to potential clients that plays on my strengths in what I know but most importantly has a market. Web development can cover so many subjects that its difficult to pick out the areas that have demand. I am also curious to find out if web developers offer services that bring in a monthly income e.g application maintenance or database maintenance? Is there a market for certain areas like WordPress plugins or bespoke applications? Are there certain things to avoid because of work duration, unrealistic client expectations or the fact that its impossible to find a market for it? As professional and experienced freelance web developers have you learned some important do's and don'ts? Is there certain services that the majority of web developers offer because its in high demand? This is the one area of web development freelancing that I cant get my head around. I know there is never a definitive answer but there must be some good practises and general consensus on this subject. Web designers design websites they offer a lump sum and get paid monthly sometimes to add new content, PPC and SEO consultants market sites to the top this will involve monthly payments, web development doesn’t seem so clear cut.

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  • Can One Get a Solid Programming Foundation Without Going To College/University?

    - by Daniel
    First, I have already searched the site and read all the previous "self-taught vs. college" topics. The majority of the answers defended that going to college was the best choice, for two main reasons: Going to college gives you the paper, which is essential to landing jobs, especially in tough economic times. Going to college gives you a solid programming base, teaching you the principles that will be essential regardless of the language/path you take after. Here comes my question: I am not worried about reason 1 at all, because I already have my own company (I build websites/ do affiliate marketing) and a stable financial situation, so I am pretty sure I won't need to look around for a job. I am worried about reason 2 though. That is, I want to make sure I'll have as solid a programming foundation as anyone else out there, and I am wondering if that is possible with self-learning. Suppose I take my time to study the very basics, like discrete maths, algorithm design, programming logic, computer architecture, Assembly, C programming, databases and data structures - mostly using books,online resources and lots of coding. Say I spend 1-2 years covering those basics. Do you think my foundation would be solid, or still lack in comparison to someone who went to college?

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  • is it possible to use shopify for just their shopping cart component or should I just roll my own

    - by timpone
    I'm working on an e-commerce site and am a rails developer; due to the nature of the items, I am managing them in their own database so I'm really looking for something that is only for the shopping cart aspect (there are things like heavy nesting and integration with other pieces of the app that would be very difficult to reproduce). It seems like there are two ways that I can go. (1) One way is rolling my own shopping cart and using something like Stripe (which I have been evaluating and am working fine with it). This literally could be as easy as creating an orders table and a line items table and a lot of front-end. (2) Or I could try to integrate into a third-party shopping cart like Shopify. I am not really sure if I can just use the shopify shopping cart or whether there is any advantage to this. If I already have most of my app done, would shopify (or another shopping cart app) provide any significant benefit (it clearly could)? Or would the integration be too much of a headache? Like for example, when a user 'adds to order' on my site, can I post to shopify and associate it with that user? thx

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  • Validating allowed characters or validating disallowed characters

    - by Tom
    I've always validated my user input based on a list of valid/allowed characters, rather than a list of invalid/disallowed characters (or simply no validation). It's just a habit I picked up, probably on this site and I've never really questioned it until now. It makes sense if you wish to, say, validate a phone number, or validate an area code, however recently I've realised I'm also validating input such as Bio Text fields, User Comments, etc. for which the input has no solid syntax. The main advantage has always seemed to be: Validating allowed chars reduces the risk of you missing a potentially malicious character, but increases the risk the of you not allowing a character which the user may want to use. The former is more important. But, providing I am correctly preventing SQL Injection (with prepared statements) and also escaping output, is there any need for this extra barrier of protection? It seems to me as if I am just allowing practically every character on the keyboard, and am forgetting to allow some common characters. Is there an accepted practice for this situation? Or am I missing something obvious? Thanks.

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  • Spotlight on an Office – Reading TVP offices

    - by Maria Sandu
    This month we’re in the UK at the Reading offices, for ‘Spotlight on an office’. The Reading Office, which is Oracle’s UK Headquarters, is based in Thames Valley Park (TVP), which is a bustling hive of activity that houses many different companies, a gym, and even a nursery. Overlooking the Thames and some of England’s beautiful countryside, this office, just a short free bus ride from Reading Town Centre is in a fantastic location. The offices themselves are made up of 5 different buildings, each with their own car park, restaurant, and design. The main building or TVP 510 as it is referred to, sits resplendent next to an extremely blue (for the UK) pond, filled with large koi-carp that on a sunny day like to come to the surface of the lake and bask. As the main hub of activity, TVP 510 is where you will find our Dry Cleaning service, the Ozone Gym, the main restaurant (which never fails to have someone in it), and the Marquee which sits outside the back amongst the picnic benches, and is where we have Barbeques in the summer time. Another highlight of the Reading Offices is tucked away in TVP530; the home of H20, and our sports and social club. This is the building that can be best be described as having the ‘cool’ vibe, where you can relax and unwind, all whilst sipping a Starbucks (or Costa if you prefer, located in TVP550), and playing a game of Pool in the cafeteria, or alternatively you can sit back and enjoy a seat in one of the luxury massage chairs! If you feel so inclined, you can also hire out an OraBike from any of the TVP offices, and if you are anything like some of my team, cycle from Reading to Bath using the towpath starting in Thames Valley Park. Oracle’s Reading Offices are a great place to work, they are home to a diverse range of people and have great atmosphere which would suit a graduate, intern, or anyone who is looking to come and work for Oracle in the UK.

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  • Has anyone else read "Programming video games for the Evil Genius"

    - by Martin
    I bought this book called "Programming Video Games for the Evil Genius" by Ian Cinnamon. If there is anyone who has read or is familiar with this book I am wondering if they think it is worth reading. I am interested in making video games. I have already taken intro courses in C++, Java and Python and got through okay. I've been going through this book for about a month now(SLOWLY). All I have to do is type the code exactly in the book, BUT a lot of the code is not clearly explained. I do some research online but I usually still have some trouble answering my questions. Then I found stack overflow. It's been a ton of help. Right now I am trying to make a racing game right out of this book and I got to a point where the author left a bunch of errors in his code. One of the members of this website fixed it up for me, but added some stuff that I'm having trouble understanding. I spend more time trying to figure out the authors errors and fix them or get someone to help me fix them than I actually do learning code. I REALLY want to learn how to do this and I am ready and willing to put in the time, but I'm not sure if my time would be better spent learning from a different source. Are there any veterans out there that are familiar with this book and think it's worth it/not worth it? Should I try to move onto another book? Any advice for a fresh start for someone who wants to learn some video game programming?

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  • storing data for maps database

    - by Timigen
    I am working on an application that displays choropleth maps. These maps are of all different types, some display state by county, country by state/province, or world by country. How should I handle storing the map information in the database? My Thoughts: I won't need to do queries to find POI inside a region, so I don't think there is a need to use spatial datatypes. I am considering storing a map as a geoJSON object (I am using JS mapping library that accepts geoJSON). The only issue is what if I want a map of the US northeast. Then I would have geoJSON for the US and a separate one for the US northeast, which would be redundant. Would it make sense to have a shape database where I had each state then when I needed a map of the US I could query for each state, and when I needed a map of the US Northeast I could again query for what I need? Note: I am not concerned with storing the data for each region, just the region itself. I will query for the data on the fly for the specific region.

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  • Java game object pool management

    - by Kenneth Bray
    Currently I am using arrays to handle all of my game objects in the game I am making, and I know how terrible this is for performance. My question is what is the best way to handle game objects and not hurt performance? Here is how I am creating an array and then looping through it to update the objects in the array: public static ArrayList<VboCube> game_objects = new ArrayList<VboCube>(); /* add objects to the game */ while (!Display.isCloseRequested() && !Keyboard.isKeyDown(Keyboard.KEY_ESCAPE)) { for (int i = 0; i < game_objects.size(); i++){ // draw the object game_objects.get(i).Draw(); game_objects.get(i).Update(); //world.updatePhysics(); } } I am not looking for someone to write me code for asset or object management, just point me into a better direction to get better performance. I appreciate the help you guys have provided me in the past, and I dont think I would be as far along with my project without the support on stack exchange!

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  • Oracle OpenWorld and JavaOne are right around the corner!

    - by Eric Jensen
    It's that time of year again! Oracle OpenWorld and JavaOne are now upon us. Below is a list of events and demos at OpenWorld and JavaOne where you can check out the cool stuff people are doing with our products, Berkeley DB and Database Mobile Server. We've got some exciting things lined up, hope to see you there! Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Keynote Wed 3 Oct, 2012 8:00 AM - 9:30 AM Java Embedded: Market Strategy Hotel Nikko - Nikko Ballrooms II & III Conference Session Mon 1 Oct, 2012 8:30 AM - 9:30 AM CON7100 - Developing with Berkeley DB and Oracle Database Mobile Server for Java Embedded Hotel Nikko - Nikko Ballroom II & III HOL (Hands-on Lab) Mon 1 Oct, 2012 7:30 PM – 9:30 PM HOL7889 - Java SE Embedded Development Made Easy Hilton San Francisco - Franciscan A/B/C/D Demos JavaOne Exhibition: Unifying M2M and Mobile in Healthcare Hilton Hotel Grand Ballroom Exhibition Hall Booth 5605 mFrontiers mFinity demo Moscone South Left - 136

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  • Internship in License Contract Management

    - by cristian.condurache(at)oracle.com
    Hi Everyone, My name is Luca. I am an intern in the License Contract Management team in Italy. I have studied Economics and Business in Pescara and finished my Master’s Degree in July 2009. After a short work experience near my home town I decided to look for a job in an International Company. I got in touch with Oracle in January 2010. I had a telephone interview and then a face-to-face interview. On a cold and grey morning, I arrived in Milan....my first impression was fantastic....a big modern building with wide TVs everywhere. I was a little nervous but very excited. I understood this could be a great opportunity... The interview went well and I started to work in March. After a training period I was quickly involved in the closing of the last quarter of the fiscal year - of which May is the last month at Oracle. Working as a License Contract Manager is a real challenge for a fresh graduate. It involves thoroughly understanding the Oracle Policies and Practices with regards to License Contracts. In my experience, especially in May, I learnt to work under high pressure, within time constrains, and to keep up with constant changes. In this period I also had the opportunity to be involved in different negotiations, being directly in contact with the customers. This helped me to develop my relational skills during complex transactions. Looking back at the nine months at Oracle I can say I have a better understanding of the IT world. It is a complex environment that changes continously, offering new challenges to learn from everytime. If you have any questions related to this article feel free to contact [email protected]. You can find our job opportunities via http://campus.oracle.com. Technorati Tags: License Contract Management,oppotunity,Oracle Policies,internship

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  • Identify which CCSprite is touched in Cocos2d

    - by PeterK
    I am trying to learn Cocos2d and is experimenting with Ray Wenderlich tutorial whack-a-mole: www.raywenderlich.com/2560/how-to-create-a-mole-whacking-game-with-cocos2d-part-1 In this tutorial three CCSprite's are popping up and you should click on them... However, i am trying to identify which mole, rat in my case, is popping up and place a CCSprite above that. Initially this looked like an easy task but i am failing. I am trying to NSLog LEFT HIT. i would guess the problem is in the If-statement and the last "227" height parameter. The left rat boundingBox = {{99.5, 146.5}, {165, 227}} (from NSLog). The key code is in the ccTouchBegan function: -(BOOL) ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event { CGPoint touchLocation = [self convertTouchToNodeSpace:touch]; for (CCSprite *rat in rats) { if (rat.userData == FALSE) continue; if (CGRectContainsPoint(rat.boundingBox, touchLocation)) { //left: rat boundingBox = {{99.5, 146.5}, {165, 227}} //mid: rat boundingBox = {{349.5, 146.5}, {165, 227}} //right: rat boundingBox = {{599.5, 146.5}, {165, 227}} //>>>>Here is where i try to get a hit<<<< if (CGRectContainsPoint(CGRectMake(99.5, 146.55, 165, 227), touchLocation)) { NSLog(@">>>>HIT LEFT<<<<<"); } I would really appreciate a few ideas how to get this to work.

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  • What web technology could I use which would support a decision tree?

    - by Rami Alhamad
    I am a big game development fan but I haven't done any commercial work in the past. I have been asked by a non-profit to look at developing a game similar to the award-winning www.playspent.org They want the following features: support 5 scenarios mobile isn't important but compatibility with older browsers would be a big bonus they want it to be visual and audible bonus is to have it easily modifiable support 4 languages I don't have much knowledge of Flash and would rather avoid using it as a solution. I started breaking down the problem into segments that I will need to examine, they are as follows: ability to read the game flow from a file that they can produce (xml, etc.) db design to store decision tree language challenge browser compatibility I am leaning towards an Google app engine/GWT solution but I am not sure what technology is best for this. I am really hoping to get your opinion/recommendation on my approach and on what technology is best. A special thanks (and beer if you live in Toronto) will be awarded to anyone who can help give me a ballpark estimate on how much such a game should go for. I know it's tough to estimate but any rough figure will help (how much would you charge for building something like playspent.org?) Thanks in advance

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