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java Programming Glossary: onceWhy is Java Vector class considered obsolete or deprecated? http://stackoverflow.com/questions/1386275/why-is-java-vector-class-considered-obsolete-or-deprecated thread but also slower why take out a lock repeatedly when once will be enough Of course it also has the overhead of locking.. the decoration approach gives cleaner separation of concerns. As for a Stack equivalent I'd look at Deque ArrayDeque to..
Why JSF calls getters multiple times http://stackoverflow.com/questions/2090033/why-jsf-calls-getters-multiple-times to notice that the getter is being called more than once per request twice or three times is what happened in my case.. listener methods should be used. They are executed only once at some point of request based JSF lifecycle and that's exactly..
http://stackoverflow.com/questions/2883355/how-to-render-pdf-in-android so it may be as easy as sending the appropriate Intent once you've saved the file to the SD card. public class OpenPdf extends..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading loaded the servletcontainer will create the ServletContext once and keep in server's memory. The webapp's web.xml will be parsed.. Filter and Listener found in web.xml will be created once and kept in server's memory as well. When the servletcontainer.. in question lives. Threadsafety That said your major concern is possibly threadsafety . You should now have learnt that..
How to create a Java String from the contents of a file? http://stackoverflow.com/questions/326390/how-to-create-a-java-string-from-the-contents-of-a-file data in the new String instance all reside in memory at once. It is safest to apply to files that you know to be small relative..
JTable design to synchronize with back-end data-structure http://stackoverflow.com/questions/3590897/jtable-design-to-synchronize-with-back-end-data-structure in the table or should i recreate the DS from the table once the user finish editing and then replace it with the old one... between 12.1 and 45.6.Since data the tables are string's once loaded I'm planning to use regex and key listener and consume.. share improve this question I would recreate your DS once the user is finised editing the table. You can always create..
http://stackoverflow.com/questions/3655316/browser-cant-access-find-relative-resources-like-css-images-and-links-when-cal you don't need to worry about changing the relative paths once again when you change the URL of the servlet. head link rel..
How to deal with “java.lang.OutOfMemoryError: Java heap space” error (64MB heap size) http://stackoverflow.com/questions/37335/how-to-deal-with-java-lang-outofmemoryerror-java-heap-space-error-64mb-heap the max heap size when you start the program. However once you do the memory profiling and understand how your objects..
Java, how to draw constantly changing graphics http://stackoverflow.com/questions/3742731/java-how-to-draw-constantly-changing-graphics robot.createScreenCapture ... to fetch all 64 pixels at once rather than one at a time I've introduced smart clipping only..
What is the purpose of the expression “new String(…)” in Java? http://stackoverflow.com/questions/390703/what-is-the-purpose-of-the-expression-new-string-in-java .toCharArray This unfortunately must copy the array twice once for toCharArray and once in the String constructor. There needs.. must copy the array twice once for toCharArray and once in the String constructor. There needs to be a documented way..
Connection pooling options with JDBC: DBCP vs C3P0 [closed] http://stackoverflow.com/questions/520585/connection-pooling-options-with-jdbc-dbcp-vs-c3p0 Commons folk have taken DBCP out of dormancy and it is now once again an actively developed project. Thus my original post may..
How to best position Swing GUIs http://stackoverflow.com/questions/7143287/how-to-best-position-swing-guis are not explicitly set. The actual location is determined once the window is shown on the screen. Have a look at the effect..
JAR Bundler using OSXAdapter causing application to lag or terminate http://stackoverflow.com/questions/7519244/jar-bundler-using-osxadapter-causing-application-to-lag-or-terminate consists of three classes. The main class that gets called once the program is started public class JarBundlerProblem public.. to learn and be it by errors below is a crude proof of concept example for the basic idea implement the Controller as SwingWorker..
Update JLabel every X seconds from ArrayList<List> - Java http://stackoverflow.com/questions/7943584/update-jlabel-every-x-seconds-from-arraylistlist-java loading... Getting there... I'll post the fix once I or whomever assists me get's it working. Thanks again java..
Why is char[] preferred over String for passwords? http://stackoverflow.com/questions/8881291/why-is-char-preferred-over-string-for-passwords improve this question Strings are immutable. That means once you've created the string if another process can dump memory.. even before garbage collection. So yes this is a security concern but even using char only reduces the window of opportunity..
http://stackoverflow.com/questions/1001714/how-to-create-war-files file My.war todir tomcat.deploydir target Click and go Once all this is set up simply launching the default target from..
Java EE 6 @javax.annotation.ManagedBean vs. @javax.inject.Named vs. @javax.faces.ManagedBean http://stackoverflow.com/questions/11986847/java-ee-6-javax-annotation-managedbean-vs-javax-inject-named-vs-javax-faces called beans.xml in a META INF folder on the classpath. Once you do this then every bean in the package becomes a CDI bean...
How can I measure distance and create a bounding box based on two latitude+longitude points in Java? http://stackoverflow.com/questions/120283/how-can-i-measure-distance-and-create-a-bounding-box-based-on-two-latitudelongi http www.meridianworlddata.com Distance calculation.asp Once done with a point and distance I would like to find the point..
http://stackoverflow.com/questions/12642852/the-images-are-not-loading paths are incorrect. You never include src in any path. Once deployed the src path will no longer exist. Here is my take.....
Java Hashmap: How to get key from value? http://stackoverflow.com/questions/1383797/java-hashmap-how-to-get-key-from-value the value into the map. This is easier said than done. Once you can ensure that use the entrySet method to obtain the set.. method to obtain the set of entries mappings in the Map. Once you have obtained the set whose type is Map.Entry iterate through..
How to Find Default Charset/Encoding in Java? http://stackoverflow.com/questions/1749064/how-to-find-default-charset-encoding-in-java share improve this question This is really strange... Once set the default Charset is cached and it isn't changed while..
How to handle invalid SSL certificates with Apache HttpClient? http://stackoverflow.com/questions/1828775/how-to-handle-invalid-ssl-certificates-with-apache-httpclient For this I use Apache's HttpClient. From tutorial I read Once you have JSSE correctly installed secure HTTP communication..
How to start/stop/restart a thread in Java? http://stackoverflow.com/questions/1881714/how-to-start-stop-restart-a-thread-in-java java multithreading share improve this question Once a thread stops you cannot restart it. However there is nothing..
NoClassDefFoundError - Eclipse and Android http://stackoverflow.com/questions/2247998/noclassdeffounderror-eclipse-and-android the new ADT finds and includes libraries in an .apk file. Once I did this everything worked fine. share improve this answer..
Populating child dropdownlists in JSP/Servlet http://stackoverflow.com/questions/2263996/populating-child-dropdownlists-in-jsp-servlet 'selected' '' option.value option c forEach select Once caveat is however that this will submit the entire form and..
How to set java_home on Windows 7? http://stackoverflow.com/questions/2619584/how-to-set-java-home-on-windows-7 like C Program Files Java jre6 Set the JAVA_HOME Variable Once you have the JDK installation path Right click the My Computer..
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 Exception e return false Method's name explains it all. Once you are sure DownloadManager is available you can do something..
Do Java arrays have a maximum size? http://stackoverflow.com/questions/3038392/do-java-arrays-have-a-maximum-size HotSpot VM the correct answer is Integer.MAX_VALUE 5 . Once you go beyond that public class Foo public static void main..
How to stop a java thread gracefully? http://stackoverflow.com/questions/3194545/how-to-stop-a-java-thread-gracefully true public void run while finished do dirty work Once upon a time a stop method existed but as the documentation states..
How do I import the javax.servlet API in my Eclipse project? http://stackoverflow.com/questions/4076601/how-do-i-import-the-javax-servlet-api-in-my-eclipse-project also supports JSF EJB JPA and all other Java EE fanciness. Once having installed both do the following steps in Eclipse Integrate..
What are good InstallAnywhere replacements for installing a Java EE application? http://stackoverflow.com/questions/759855/what-are-good-installanywhere-replacements-for-installing-a-java-ee-application have a decent GUI for putting the installer together. Once that is done however it must be possible to skip the GUI and..
How many threads can a Java VM support? http://stackoverflow.com/questions/763579/how-many-threads-can-a-java-vm-support Most of the threads were not doing anything of course. Once the machine hit around 6500 Threads in Java the whole machine..
Update JLabel every X seconds from ArrayList<List> - Java http://stackoverflow.com/questions/7943584/update-jlabel-every-x-seconds-from-arraylistlist-java improve this question First build and display your GUI. Once the GUI is displayed use a javax.swing.Timer to update the GUI..
How do I create executable Java program? http://stackoverflow.com/questions/804466/how-do-i-create-executable-java-program class is the one with the public static void main method Once the manifest is ready the jar executable is invoked. It has..
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