java Programming Glossary: perPlaces where JavaBeans are used? http://stackoverflow.com/questions/1727603/places-where-javabeans-are-used public class User implements java.io.Serializable Properties. private Long id private String name private Date birthdate.. hashCode return id null getClass .hashCode id.hashCode super.hashCode public String toString return String.format User id.. d id name birthdate Implementing Serializable is not per se mandatory but very useful if you'd like to be able to persist..
Recommendations for a heap analysis tool for Java? [closed] http://stackoverflow.com/questions/2064427/recommendations-for-a-heap-analysis-tool-for-java tools e.g. jprofiler jmap ... . Let's keep it one tool per answer with a short list of pros and cons for each tool. java..
Why JSF calls getters multiple times http://stackoverflow.com/questions/2090033/why-jsf-calls-getters-multiple-times like this h outputText value # ManagedBean.someProperty If I print a log message when the getter for someProperty.. If I print a log message when the getter for someProperty is called and load the page it is trivial to notice that the.. to notice that the getter is being called more than once per request twice or three times is what happened in my case DEBUG..
Is it possible to use JSF+Facelets with HTML 4/5? http://stackoverflow.com/questions/2935759/is-it-possible-to-use-jsffacelets-with-html-4-5 and or fear the w3 validator it will however work perfectly on the most if not all webbrowsers . HTML5 on the other.. without a xml declaration in top of the page. It works perfectly in all browsers. With a XHTML doctype you should as per.. in all browsers. With a XHTML doctype you should as per the specification be using a Content Type of application xhtml..
GUI not working after rewriting to MVC http://stackoverflow.com/questions/3066590/gui-not-working-after-rewriting-to-mvc and implementing classes. A third option is to use a PropertyChangeListener as shown here and here . import java.awt.BorderLayout.. http stackoverflow.com questions 5274962 26 Mar 2013 r17 per comment public class MVCGame implements Runnable public static.. public void run JFrame f new JFrame f.setDefaultCloseOperation JFrame.EXIT_ON_CLOSE f.add new MainPanel f.pack f.setLocationRelativeTo..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading cookie name and the unique session ID as cookie value. As per the HTTP cookie specification a contract a decent webbrowser..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files scriptlets are not unit testable. Maintainability per saldo more time is needed to maintain mingled cluttered duplicated.. returned from processing the client's requests into a proper client ready format. Even then this would be better done with.. by adding the following piece to web.xml jsp config jsp property group url pattern .jsp url pattern scripting invalid true..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications like add edit and delete. Earlier I was using one Servlet per options like Servlet1 for add entity1 Servlet2 for edit entity1.. responsibility of a servlet. Should we have one Servlet per entity which will process all it's options and forward request.. action methods which works directly with the model properties. The View is represented by components in flavor of JSP..
Generating random numbers in a range with Java http://stackoverflow.com/questions/363681/generating-random-numbers-in-a-range-with-java have it. A random integer value in the range Min Max or per the example 5 10 5 int Math.random 10 5 1 share improve this..
Difference between applicationContext.xml and spring-servlet.xml in Spring http://stackoverflow.com/questions/3652090/difference-between-applicationcontext-xml-and-spring-servlet-xml-in-spring servlet.xml related anyhow in spring framework Will the properties files declared in applicationContext.xml be available to.. app context. There can be many of these in a webapp one per Spring servlet e.g. spring1 servlet.xml for servlet spring1..
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 get rid of the issue. I could rewrite some of my code to persist objects to file system frequently using database is the.. 2gb not specifically heap but total amount of memory per process . It just happens that Java happens to make the default.. that your program will run in some finite amount of memory perhaps depending on input size you will always run into this problem...
JFormattedTextField is not properly cleared http://stackoverflow.com/questions/4148336/jformattedtextfield-is-not-properly-cleared is not properly cleared I am doing this assignment make a program that solves.. I have a MaskFormatter so that it only accepts one integer per text box. Then in my panel I have this code when a key is relesed... that it is square and I can not enforce only one integer per text box. Am I missing something really obvious java jtextfield..
How to internationalize a Java web application? http://stackoverflow.com/questions/4276061/how-to-internationalize-a-java-web-application which is the same for all languages and the value differs per language. Resource bundles are usually properties files which.. differs per language. Resource bundles are usually properties files which are loaded by ResourceBundle API. This can however.. the login form of your webapplication with properties file based resource bundles. Create the following files..
Unicode equivalents for \w and \b in Java regular expressions? http://stackoverflow.com/questions/4304928/unicode-equivalents-for-w-and-b-in-java-regular-expressions make them Unicode aware java regex unicode character properties share improve this question EDIT The source code for.. the pattern so you can use it with the String class 䏭 wrappers too. It also sports corrected definitions for various other.. It also sports corrected definitions for various other properties too. It now tracks The Unicode Standard in both RL1.2 and..
Migrating from JSF 1.2 to JSF 2.0 http://stackoverflow.com/questions/4441713/migrating-from-jsf-1-2-to-jsf-2-0 needs to be updated to extend ViewHandlerWrapper instead. Not necessary but just for cleanup remove any Facelets.. particular example it will be # someBean . Any managed property can be annotated using @ManagedProperty @ManagedProperty #.. . Any managed property can be annotated using @ManagedProperty @ManagedProperty # otherBean private OtherBean otherBean Any..
Calling awt Frame methods from subclass http://stackoverflow.com/questions/5665156/calling-awt-frame-methods-from-subclass my head around physics and rendering. It's been a good experience so far but I've hit a bit of a brick wall. The general.. JFrame PApplet app public ExampleFrame PApplet emApp super Ball Maze Game this.setDefaultCloseOperation JFrame.EXIT_ON_CLOSE.. PApplet emApp super Ball Maze Game this.setDefaultCloseOperation JFrame.EXIT_ON_CLOSE this.setLocation 200 200 app emApp..
Swing: resizing a JFrame like Frames in Linux e.g http://stackoverflow.com/questions/13065032/swing-resizing-a-jframe-like-frames-in-linux-e-g new Timer 50 new Action @Override public void actionPerformed ActionEvent e if timer.isRunning else resizePanel getContentPane.. GraphicsDevice gd ge.getDefaultScreenDevice boolean isPerPixelTranslucencySupported gd.isWindowTranslucencySupported PERPIXEL_TRANSLUCENT.. gd.isWindowTranslucencySupported PERPIXEL_TRANSLUCENT if isPerPixelTranslucencySupported System.out.println Per pixel translucency..
BeanCreationException after adding two variables http://stackoverflow.com/questions/20307310/beancreationexception-after-adding-two-variables bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0' defined in class.. init method failed nested exception is javax.persistence.PersistenceException PersistenceUnit petclinic Unable to build EntityManagerFactory.. nested exception is javax.persistence.PersistenceException PersistenceUnit petclinic Unable to build EntityManagerFactory .....
How to find which jars and in what order are loaded by a classloader? http://stackoverflow.com/questions/2179858/how-to-find-which-jars-and-in-what-order-are-loaded-by-a-classloader to the list of jars directories via the getURLs method. Per the doc for this class those URLs will be searched in order...
Performance issue using Javas Object streams with Sockets http://stackoverflow.com/questions/2251051/performance-issue-using-javas-object-streams-with-sockets issue using Javas Object streams with Sockets I'm trying.. double finish System.currentTimeMillis System.out.println Per ping finish start iterations catch Exception e e.printStackTrace.. Exception e e.printStackTrace The result I'm getting is Per ping 80.35 80 msec is far to slow for local traffic. Request..
Java Thread Garbage collected or not http://stackoverflow.com/questions/2423284/java-thread-garbage-collected-or-not thread keeps on running until the main thread is running. Per my understanding the thread object should have been garbage..
How can I update information in an Android Activity from a background Service http://stackoverflow.com/questions/2468874/how-can-i-update-information-in-an-android-activity-from-a-background-service this option sucks but it's certainly possible. Callbacks. Per jax's answer the Activity registers a callback object observer..
Why should Java ThreadLocal variables be static http://stackoverflow.com/questions/2784009/why-should-java-threadlocal-variables-be-static it were an instance level field then it would actually be Per Thread Per Instance not just a guaranteed Per Thread. That isn't.. instance level field then it would actually be Per Thread Per Instance not just a guaranteed Per Thread. That isn't normally.. actually be Per Thread Per Instance not just a guaranteed Per Thread. That isn't normally the semantic you're looking for...
Accessing the last entry in a Map http://stackoverflow.com/questions/3527216/accessing-the-last-entry-in-a-map this question To answer your question in one sentence Per default Maps don't have a last entry it's not part of their..
Android: setting a spinner onClickListener() http://stackoverflow.com/questions/3928071/android-setting-a-spinner-onclicklistener I have to little rep so I started a new question. Edit Per recomendation I tried this int a spinnerMes.getCount int b spinnerMes.getChildCount..
How can I change font size in Eclipse for Java text editors? http://stackoverflow.com/questions/4922305/how-can-i-change-font-size-in-eclipse-for-java-text-editors these will override the top level preferences. Juno Note Per comment below This has moved to the Eclipse Preferences menu..
Reference is ambiguous with generics http://stackoverflow.com/questions/5361513/reference-is-ambiguous-with-generics for method invocation s4 so m2 is the only choice. Per 15.12.2.2 to see if m1 is applicable for s4 first type inference.. f2 getF2 pf2.setValue p2 f2 This compiles without problem. Per 4.5.2 the types of the methods in PF Object are methods in PF..
Virtual Memory Usage from Java under Linux, too much memory used http://stackoverflow.com/questions/561245/virtual-memory-usage-from-java-under-linux-too-much-memory-used code needs to access a JAR you can also memory map it. Per thread data for two threads. The 1M block is a thread stack..
Change colors for JProgressBar with Nimbus? http://stackoverflow.com/questions/7174420/change-colors-for-jprogressbar-with-nimbus Color for only a single ProgressBar instance you can use Per component customization progress new JProgressBar UIDefaults..
http://stackoverflow.com/questions/7520432/java-vs-equals-confusion it defaults to the Object#equals Object o method. Per the Object API this is the same as that is it returns true if..
Default eclipse working directory http://stackoverflow.com/questions/981213/default-eclipse-working-directory project name But I want it to be something like custom_var Per class I can change the Run configuration arguments Working directory..
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