java Programming Glossary: hasHow to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet use the POST method and the enctype attribute of the form has to be set to multipart form data . form action upload method.. tested by millions of users for years. Such a library has proven its robustness. When you're not on Servlet 3.0 yet use.. FileUpload to parse the multpart form data requests. It has an excellent User Guide and FAQ carefully go through both ...
Overriding equals and hashCode in Java http://stackoverflow.com/questions/27581/overriding-equals-and-hashcode-in-java equals and hashCode in Java What issues pitfalls must be considered when overriding.. pitfalls must be considered when overriding equals and hashCode java override equals hashcode share improve this question.. when overriding equals and hashCode java override equals hashcode share improve this question The theory for the language..
How to use java.net.URLConnection to fire and handle HTTP requests? http://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests the HttpURLConnection#getErrorStream to see if the server has sent any useful error information. InputStream error HttpURLConnection..
Download a file with Android, and showing the progress in a ProgressDialog http://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog robust. Here is a brief list You must check whether user has an internet connection available Make sure you have the right.. directory were you are going to download files exist and has write permissions. If download is too big you may want to implement..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading specification a contract a decent webbrowser and webserver has to adhere the client the webbrowser is required to send this.. from server's memory. The HttpSession lives until it has not been used for more than the session timeout time a setting.. On the other hand the session cookie on the client side has a default lifetime which is as long as the browser instance..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files 2.0 style pages JSP 2.0 Specification supports but deemphasizes the use of scriptlets . ... In the spirit of adopting the.. not using the standard Java API. JSP's successor Facelets has already implicit HTML escaping so you don't need to worry about..
http://stackoverflow.com/questions/4112686/how-to-use-servlets-and-ajax displays List Product in a table where the Product class has the properties Long id String name and BigDecimal price . The..
http://stackoverflow.com/questions/5621338/how-to-add-jtable-in-jpanel this question Nested Layout Example The Java Tutorial has comprehensive information on using layout managers. See the..
What is an efficient way to implement a singleton pattern in Java? http://stackoverflow.com/questions/70689/what-is-an-efficient-way-to-implement-a-singleton-pattern-in-java serialization or reflection attacks. While this approach has yet to be widely adopted a single element enum type is the best..
Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing? http://stackoverflow.com/questions/7229226/should-i-avoid-the-use-of-setpreferredmaximumminimumsize-methods-in-java-swi posing tons of work onto your unfortunate fellow who has to maintain the code and has to track down a broken layout I.. your unfortunate fellow who has to maintain the code and has to track down a broken layout I don't think any LayoutManager..
Java String.equals versus == [duplicate] http://stackoverflow.com/questions/767372/java-string-equals-versus String.equals versus duplicate This question already has an answer here How do I compare strings in Java 27 answers.. String datos new String nDatos int i 0 while tokens.hasMoreTokens String str tokens.nextToken datos i str i System.out.println..
How to use an existing database with an Android application [duplicate] http://stackoverflow.com/questions/9109438/how-to-use-an-existing-database-with-an-android-application an Android application duplicate This question already has an answer here How to ship an Android application with a database..
Signing PDFs on a server document using a signature from the user http://stackoverflow.com/questions/10656100/signing-pdfs-on-a-server-document-using-a-signature-from-the-user sure as hell aren't going to be enough for this action. Has anyone ever encountered a problem like that Maybe some ready..
Program not accessing method paintComponent() of extended JPanel class http://stackoverflow.com/questions/12226198/program-not-accessing-method-paintcomponent-of-extended-jpanel-class Can anybody give me any idea why this might be happening Has it got anything to do with the imageDimension object Additional..
How to solve performance problem with Java SecureRandom? http://stackoverflow.com/questions/137212/how-to-solve-performance-problem-with-java-securerandom to build up. How do you avoid the peformance penalty Has anyone used Uncommon Maths as a solution to this problem Can..
I found JPA, or alike, don't encourage DAO pattern http://stackoverflow.com/questions/2100115/i-found-jpa-or-alike-dont-encourage-dao-pattern You'll find some other enlightened point of views in Has JPA Killed the DAO on InfoQ but you won't be surprised by the..
HTML/XML Parser for Java [closed] http://stackoverflow.com/questions/2129375/html-xml-parser-for-java and bug free Parses HTML and XML Handles erroneous HTML Has a DOM implementation Supports HTML4 JavaScript and CSS tags..
Java user.home is being set to %userprofile% and not being resolved http://stackoverflow.com/questions/2134338/java-user-home-is-being-set-to-userprofile-and-not-being-resolved have to set Duser.home in the JVM for each application. Has anyone else experienced this Is there a fix for this Would this..
Using Java to get OS-level system information http://stackoverflow.com/questions/25552/using-java-to-get-os-level-system-information but primarily variants of Solaris Linux and Windows. Has anyone been able to successfully extract information such as..
Change private static final field using Java reflection http://stackoverflow.com/questions/3301635/change-private-static-final-field-using-java-reflection testing How to limit setAccessible to only 𦧺egitimate uses Has examples of messing with Integer 's cache mutating a String..
CubicCurve2D connecting two JInternalFrame instances http://stackoverflow.com/questions/3951383/cubiccurve2d-connecting-two-jinternalframe-instances the bottom of one internal frame to the top of the other . Has anybody here done this before The issue I am running into is..
Memory barriers and coding style over a Java VM http://stackoverflow.com/questions/3964317/memory-barriers-and-coding-style-over-a-java-vm and confusion surrounding concurrency issues on SO Has java concurrency cynicism gone too far . Also tools like FindBugs..
How to capture video using JMF, but without installing JMF http://stackoverflow.com/questions/4046621/how-to-capture-video-using-jmf-but-without-installing-jmf incorporate it into your custom installer quite easily. Has anyone found a better way to do this though There are a few..
How to reliably guess the encoding between MacRoman, CP1252, Latin1, UTF-8, and ASCII http://stackoverflow.com/questions/4198804/how-to-reliably-guess-the-encoding-between-macroman-cp1252-latin1-utf-8-and in full source runs on Unix and is fully unencumbered. Has anyone else had this problem of a zillion legacy text files.. files are in will help us avoid the problem in the future. Has anyone ever tried to enforce this on an institutional basis..
Java - sending HTTP parameters via POST method easily http://stackoverflow.com/questions/4205980/java-sending-http-parameters-via-post-method-easily trick but the parameters are still sent via GET method. Has HttpURLConnection got any method that would help Is there any..
Reading a Json Array in android http://stackoverflow.com/questions/4244879/reading-a-json-array-in-android A JSONArray text must start with ' ' at character 1 of.... Has anyone encountered a problem like this Any help would be greatly..
What CMS runs on Google App Engine? [closed] http://stackoverflow.com/questions/478760/what-cms-runs-on-google-app-engine cpedialog 596 revisions last Dec 10 2010 Too simple. Has blog engine. GaeDjangocms 1.1 Too simple. App Engine Site Creator..
Good Java graph algorithm library? http://stackoverflow.com/questions/51574/good-java-graph-algorithm-library Java graph algorithm library Has anyone had good experiences with any Java libraries for Graph..
Export PDF pages to a series of images in Java http://stackoverflow.com/questions/550129/export-pdf-pages-to-a-series-of-images-in-java method's implementation see e661 Determining If an Image Has Transparent Pixels boolean hasAlpha hasAlpha image Create a..
Creating animated GIF with ImageIO? http://stackoverflow.com/questions/777947/creating-animated-gif-with-imageio animated GIF with ImageIO Has anybody managed to convince ImageIO to write an animated GIF..
http://stackoverflow.com/questions/80799/jax-rs-frameworks two other frameworks Restlet Apache CXF . My question is Has anyone did some comparison between those frameworks and if so..
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