Search Results

Search found 33131 results on 1326 pages for 'java ear'.

Page 625/1326 | < Previous Page | 621 622 623 624 625 626 627 628 629 630 631 632  | Next Page >

  • Randomize numbers within a subset

    - by Samuel
    I have a array of integer numbers (say 1,2,3,4,5 or 1,2,3, ... 10 or 1,2,3, ... 50) from which I would like to get a random set of numbers ordered differently every time. Is there a utility method to do this? e.g. for 1,2,3,4,5 post randomization it might be either [1,5,4,2,3 or 2,1,3,5,4 or 3,1,2,4,5 or ...] I would like to know if there is a java utility method / class which already provides this capability?

    Read the article

  • How does one search/poll all modal info in a frame automatically?

    - by user310631
    As you'll no-doubt be able to tell momentarily, I have little knowledge of the programming world. That being said, here goes.... In this scenario, there's a Java-based game that has a map of the game world oriented in an X, Y coordinate tile system. Some of the grid tiles are player cities, some are non-player locations. The game runs inside a frame in the browser, the X, Y coordinate map feature is one optional view, and the entire map is not available to view at any one time. Each grid tile has an "Onclick" event and an "Onmouseover" event. The mouseover event is a tooltip, the click event is something called a "modal" that has information specific to that tile. What I'd like to find out is: How can I poll all the grid tiles' "modal" information using some kind of script or other auto-running polling feature?

    Read the article

  • Playground for Artificial Intelligence?

    - by Dolph Mathews
    In school, one of my professors had created a 3D game (not just an engine), where all the players were entirely AI-controlled, and it was our assignment to program the AI of a single player. We were basically provided an API to interact with the game world. Our AI implementations were then dropped into the game together, and we watched as our programs went to battle against each other. It was like robot soccer, but virtual, and with lots of big guns. I'm now looking for anything similar (and open source) to play with. (Preferably in Java, but I'm open to any language.) I'm not looking for a game engine, or a framework... I'm looking for a complete game that simply lacks AI code... preferably set up for this kind of exercise. Suggestions?

    Read the article

  • Have parameters in Dao methods to get entities the most efficient way for read-only access

    - by Blankman
    Allot of my use of hibernate, at least for that data that is presented on many parts of the web application, is for read-only purposes. I want to add some parameters to my Dao methods so I can modify the way hibernate pulls the data and how it handles transactions etc. Example usage: Data on the front page of my website is displayed to the users, it is read-only, so I want to avoid any session/entity tracking that hibernate usually does. This is data that is read-only, will not be changed in this transaction, etc. What would be the most performant way to pull the data? (the code below is c#/nhibernate, I'm implementing this in java as I learn it) public IList<Article> GetArticles() { return Session.CreateCriteria(typeof(Article)) // some where cluase }

    Read the article

  • direct access to vector elements similar to arrays

    - by mixm
    hi. im currently creating a tile based game, where elements of the games are placed in four different vectors (since there are multiple game objects with different properties, hence stored in different vectors). these game elements themselves contain x and y coordinates similar to how they are stored in a two dimensional array. i was wondering if there was a way to access these vector elements similar to two dimensional array access (currently i am implementing an for loop to cycle the elements while comparing its coordinates). this kinda sucks when i need to refresh my display at every game cycle (since the large number of comparisons and loops). im implementing this in java btw.

    Read the article

  • how to get an instance of an XMLEventAllocator?

    - by kostja
    I am trying to follow the recommended way of parsing XML with StAX using sun's Cursor-to-Event Example for Java EE 5. You are supposed to traverse the XML via the Cursor API and allocate an XMLEventusing an XMLEventAllocator when necessary. Awkwardly, sun's own example does not compile (at least not with JDK 1.6, even with 1.5 code compliance). The example tries to instantiate an allocator via new, but the according implementation classes in the JDK are not accessible externally. After reading the JavaDocs and searching the web I have found literally nothing. One could implement the XMLEventAllocator interface from scratch, but it seems really wrong, when there are perfectly good implementations in the JDK, besides not being an expert in StAX makes it difficult to get it right.

    Read the article

  • Video encoding by servlet with MEncoder

    - by Andrey
    Hello. I was developing an application for video encoding on the server and got a problem with encoding video with MEncoder. This decoder doesn't work correctly when runned by a command line with Runtime.getRuntime().exec(“D:\mencoder\mnc\mencoder.exe video1.avi -o outvideo1.flv -of lavf -oac mp3lame -lameopts abr:br=64 -srate 22050 -ovc lavc -lavcopts vcodec=flv:vbitrate=300:mbd=2:mv0:trell:v4mv:cbp:last_pred=3 -vf scale=320:240,harddup -quiet”) ; The decoder launches and works in windows console with my parameters, but when it's run from a servlet it just hangs in process list and doesn't do anything before the web-server is stopped. When trying to use decoder from a simple java applcation, it runs correctly. Thanks for help.

    Read the article

  • how to manage formating of text when read a save file?

    - by moon
    hello i have a java applet application in which i use rich text area . i write URDU the national language of PAKISTAN. i managed to do so with uni codes. the problem is, when i write urdu in text area and select a font and color for each line it do all of this but when i save this file using UTF-8 encoding and then open it again it shows all text formatted as i choose format of last line. my requirement is to open file as it is saved. i mean each file should have same formatting as i done before saving.

    Read the article

  • Can't load AMD 64-bit .dll on a IA 32-bit platform

    - by Guihua
    I download the Gurobi package for linear programming. I import the corresponding gurobi.jar package. Then run the example program. Then it appears the following errors: Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\gurobi460\win64\win64\bin\GurobiJni46.dll: Can't load AMD 64-bit .dll on a IA 32-bit platform Then I downloaded the window 64 bit Jre, and use the "window--preference--Installed JRE" to install this new JRE. However, it still appeared this error. Could you help me? Thank you !

    Read the article

  • Showing a progress bar when downloading a file from the server

    - by Purushotham
    Hi, I need to show a progress bar to the user who requests a file to download. I am using J2EE application to generate the file. User will submit the data from the client side to get the file. The server takes all the submitted data, generates file and sends it back to the requested user. So I want to show a progress bar to the user till the file comes to the him. Is there any way to do this ? I am using java, jquery and javascript in my application.

    Read the article

  • Problem saving Text file in database using Hibernate

    - by Marquinio
    I'm having a problem saving large text files to MySQL database. If the text file size is around 5KB it successfully saves. If file is 148KB then I get this error from Hibernate: org.hibernate.exception.DataException: Could not execute JDBC batch update These is the SQL shows by Hibernate: Hibernate: insert into file_table (ID,FILE) values (?, ?) And in my hibernate file I'm using java.sql.Blob to store the file. Anyone knows why it fails to save a file size of 148KB but if I open that same file, cut it down to around 5KB, it will successfully save it? I thought the default limit was I think 2GB? This is weird. Thanks.

    Read the article

  • I'm asked to tune a long starting app into a short time period

    - by Jason
    Hi, I'm asked to shorten the startup period of a long starting app, however I have also to obligate to my managers to the amount of time i will reduce the startup - something like 10-20 seconds. As i'm new in my company I said I can obligate with timeframe of months (its a big server and I'm new and i plan to do lazy load + performance tuning). that answer was not accepted I was required to do some kind of a cache to hold important data in another server and then when my server starts up it would reach all its data from that cache - I find it a kind of a workaround and i don't really like it. do you like it? what do you think I should do? any suggestions? PS when i profiled the app i saw many small issues that make the startup long (like 2 minutes) it would not be a short process to fix all and to make lazy load. Any kind of suggestions would help. language - java. Thanks

    Read the article

  • [Hibernate] Problem with saveOrUpdate()

    - by kunkanwan
    Hi, I've problem with Hibernate. I have a class User class User { int id; String name; } where id is native generator in User.hbm.xml , and name is primary-key in DB. In my database , I saved some information about Users. Than, I want to connect with this information about User. For example in my DB i have row INSERT INTO User VALUES ('Bill'); Main.java User bill = new User(); bill.setName("Bill"); session.saveOrUpdate(bill); This code always trying insert bill to database , rather than update when row about Bill exists in DB... Could you help me ? Thank you for advance.

    Read the article

  • Hudson jobs won't call javac?

    - by Dissonant
    Hi, I have just set up Hudson on my server. For some reason, my build will not call javac to compile my builds...? I have set the path to the JDK in the Manage Hudson area, and it seems to recognise it (doesn't give me a warning). Is there something else I'm supposed to do? Here's a sample console output of one of my jobs (note how javac isn't called at all): Started by user admin Checking out svn+ssh://myhost.com/Project1 A /src/Program.java A build.xml U At revision 119 no change for svn+ssh://myhost.com/Project1 since the previous build Finished: SUCCESS

    Read the article

  • Designing a peer to peer network

    - by Varun
    I am designing a simple peer to peer network. The basic architecture will be as follows: A central server- that keeps track of all the peers. The job of this server is to keep track of all the peers that join the network. Every peer could do things: a. Download a file from it's peer b. Push a file (send a file) to it's peer. Could anybody please tell me what would be the best design for such a system? What would be the problems that i might run into and so on. I am planning to use Java as the programming language to implement. Would it be a good choice? Also, is it necessary that i would need a Linux box to develop the system? or is it fine if i use a Windows machine? Your help will be much appreciated! Thanks!

    Read the article

  • Testing file uploading and downloading speed using FTP

    - by Toman
    Hi all, I am working in a desktop application using java. In my application i have to perform a speed test which will show the file uploading and downloading speed. For uploading test i am uploading a small test file to a FTP server and based on time taken i am calculating the file upload speed. similarly i am downloading a test file form server and calculating download speed. But result i am getting doesn't match with actual FTP file uploading and downloading speed.it seems that the establishing connection to FTP server is increasing the time, hence the resultant speed i am calculating is less. Could you suggest any link or some way to get nearest uploading and downloading speed. i thanks to all your valuable suggestion.

    Read the article

  • Switch to BigInteger if necessary

    - by fahdshariff
    I am reading a text file which contains numbers in the range [1, 10^100]. I am then performing a sequence of arithmetic operations on each number. I would like to use a BigInteger only if the number is out of the int/long range. One approach would be to count how many digits there are in the string and switch to BigInteger if there are too many. Otherwise I'd just use primitive arithmetic as it is faster. Is there a better way? Is there any reason why Java could not do this automatically i.e. switch to BigInteger if an int was too small? This way we would not have to worry about overflows.

    Read the article

  • ready to use design pattern APIs for PHP?

    - by ajsie
    i know that in Java you can use their built-in APIs for design pattern. eg. if you want to use the observer pattern, you just have to extend your Subject class with the Observable class. is this possible for PHP? are there any libraries for the design patterns ready to use. in this way you don't have to reinvent the wheel and you also let many developers follow a standard. does Zend library have these API:s?

    Read the article

  • Determining whether a file is a duplicate

    - by Todd R
    Is there a reliable way to determine whether or not two files are the same? For example, two files with the same size and type may or may not be the same binarilly (yeah, I know it's not really a word). I assume that comparing one or two checksums of the files will help, but I wonder: How reliable are checksums at determining whether two files are different; what are the chances of two different files having the same checksum? Would reliability increase by applying additional checksum comparisons? Which checksum algorithm(s) would be the most efficient and/or reliable? Any ideas, suggestions or thoughts are appreciated! P.S. The code for this is being written in Java running on a nix system, but generic or platform agnostic input is most helpful.

    Read the article

  • Is there an easy way to concatenate several lines of text into a string without constantly appending

    - by Marshmellow1328
    So I essentially need to do this: String text = "line1\n"; text += "line2\n"; text += "line3\n"; useString( text ); There is more involved, but that's the basic idea. Is there anything out there that might let me do something more along the lines of this though? DesiredStringThinger text = new DesiredStringThinger(); text.append( "line1" ); text.append( "line2" ); text.append( "line3" ); useString( text.toString() ); Obviously, it does not need to work exactly like that, but I think I get the basic point across. There is always the option of writing a loop which processes the text myself, but it would be nice if there is a standard Java class out there that already does something like this rather than me needing to carry a class around between applications just so I can do something so trivial. Thanks!

    Read the article

  • Mocking my custom dependencies with Spring

    - by Brabster
    Is is possible to declare mocks using some mocking framework for my own classes declaratively with Spring? I know there are some standard mocks available in Spring, but I'd like to be able to mock out my own classes declaratively too. Just to check I'm not going about this the wrong way: the idea is to have a pair of JUnit test and Spring config for each integration test I want to do, mocking everything except the specific integration aspect I'm testing (say I had a dependency on two different data services, test one at a time) and minimising the amount of repeated Java code specifying the mocks.

    Read the article

  • Error in eclipse: "The project cannot be built until build path errors are resolved"

    - by Darkphenom
    I am a CS student learning java so I do some work at home and at college on a mixture of linux and windows. I have a problem after copying a new project into the eclipse workspace. The project shows up but with a red exclamation mark and an error saying: "The project cannot be built until build path errors are resolved" Can somebody help me out with this? I tried this http://www.scottdstrader.com/blog/ether_archives/000921.html but it didn't work. Also, are there any good ways of syncing an eclipse workspace across multiple computers?

    Read the article

  • Google Calendar title displayed incorrectly

    - by Don
    Hi, I'm creating 2 Google calendars via the Java client API using the following Groovy method: private CalendarEntry createGoogleCalendar(User user) throws ServiceException { new CalendarEntry().with {calendar -> title = new PlainTextConstruct(user.email) summary = new PlainTextConstruct("Collection calendar for $user.email") timeZone = new TimeZoneProperty("America/Montreal") hidden = HiddenProperty.FALSE def savedCalendar = googleCalendar.insert(CALENDAR_URL, calendar) log.debug "Created calendar with title '$savedCalendar.title.plainText' for '$user.email'" return savedCalendar } } The logs show: CalendarService - Created calendar with title '[email protected]' for '[email protected]' CalendarService - Created calendar with title '[email protected]' for '[email protected]' so it appears that all is well. However when I look at the 1st calendar on the Google website, the title is shown as [email protected], though the summary is correctly shown as Collection calendar for [email protected]. Strangely, the title and summary are both shown correctly tor the 2nd calendar. This only started happening today, and I'm pretty sure the relevant code has not changed. I'm totally stumped....

    Read the article

  • Warning vs. error

    - by Samuel
    I had an annoying issue, getting a "Possible loss of precision" error when compiling my Java program on BlueJ (But from what i read this isn't connected to a specific IDE). I was surprised by the fact that the compiler told me there is a possible loss of precision and wouldnt let me compile/run the program. Why is this an error and not a warning saying you might loose precision here, if you don't want that change your code? The program runs just fine when i drop the float values, it wouldn't matter since there is no point (e.g [143.08, 475.015]) on my screen. On the other hand when i loop through an ArrayList and in this loop i have an if clause removing elements from the ArrayList it runs fine, just throws an error and doesn't display the ArrayList [used for drawing circles] for a fraction of a second. This appears to me as a severe error but doesn't cause (hardly) any troubles, while i wouldn't want to have such a thing in my code at all. What's the boundary?

    Read the article

  • getTextContent from Node with whitespace character normalization

    - by Nayn
    Hi, I am working with XPATH, Java and want to extract some text out of one html page. The text is located under some div with some whitespace characters in between, like &nbsp; <br> etc. I want these to be converted into 'space' and 'newline' respectively while extracting. The method I am using to extract text is Element.getTextContent() which does not respect whitespace characters. Could somebody tell me if there is a way to extract text with whitespace normalization OR Extract whole html markup under the 'Node' so that i could replace it by myself. Thanks Nayn

    Read the article

< Previous Page | 621 622 623 624 625 626 627 628 629 630 631 632  | Next Page >