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java Programming Glossary: imagineMost elegant way to generate prime numbers http://stackoverflow.com/questions/1042902/most-elegant-way-to-generate-prime-numbers nextProbablePrime for very simple code although I can't imagine it being particularly efficient dfa Use LINQ to lazily generate..
Counting Line Numbers in Eclipse http://stackoverflow.com/questions/1043666/counting-line-numbers-in-eclipse It says it requires Eclipse 3.1 although I imagine they mean 3.1 Here's another metrics plugin that's been tested..
Choosing Java vs Python on Google App Engine http://stackoverflow.com/questions/1085898/choosing-java-vs-python-on-google-app-engine
How to do query auto-completion/suggestions in Lucene? http://stackoverflow.com/questions/120180/how-to-do-query-auto-completion-suggestions-in-lucene Solr is obviously just wrapping around Lucene anyway so I imagine there must be a way to do it I've looked into using EdgeNGramFilter..
Java rectangle collision detection confusion http://stackoverflow.com/questions/13825515/java-rectangle-collision-detection-confusion other 2 class's I have are the main and the menu I cant imagine the rectangle methods being made in the main or menu class so..
How to upload and store an image with google app engine (java) http://stackoverflow.com/questions/1513603/how-to-upload-and-store-an-image-with-google-app-engine-java the code. Declaring your entity with the image. You can imagine having other fields e.g. tags location etc @Entity public class..
Good XMPP Java Libraries for server side? [closed] http://stackoverflow.com/questions/177514/good-xmpp-java-libraries-for-server-side related 1 I wanted to write an XMPP server because I imagine writing a custom protocol for two clients to communicate. Basically..
Use of class definitions inside a method in Java http://stackoverflow.com/questions/2428186/use-of-class-definitions-inside-a-method-in-java class file be generated for DummyClass Its hard for me to imagine this concept in an Object Oriented manner. Having a class definition..
How to limit setAccessible to only “legitimate” uses? http://stackoverflow.com/questions/2481862/how-to-limit-setaccessible-to-only-legitimate-uses place That's a pretty deep question to answer well. I imagine yes but you'd need to add some other mechanism s that might..
Is there a recommended way to use the Observer pattern in MVP using GWT? http://stackoverflow.com/questions/2832779/is-there-a-recommended-way-to-use-the-observer-pattern-in-mvp-using-gwt also to events being fired from the class hierarchy. I can imagine something like this for each module there will be a set of classes..
What's wrong with overridable method calls in constructors? http://stackoverflow.com/questions/3404301/whats-wrong-with-overridable-method-calls-in-constructors what should be wrong with it The only alternative I can imagine is to pass the results of otherwise abstract methods to the..
What is reflection, and why is it useful? http://stackoverflow.com/questions/37628/what-is-reflection-and-why-is-it-useful you want to. So to give you a code example of this in Java imagine the object in question is foo Method method foo.getClass .getMethod..
Implementing back/forward buttons in Swing http://stackoverflow.com/questions/5654926/implementing-back-forward-buttons-in-swing way I'm using it. In either case it's really bugging me. I imagine there are probably easier ways like a card layout but I think..
The case against checked exceptions http://stackoverflow.com/questions/613954/the-case-against-checked-exceptions Checked exceptions should be used in cases where you can imagine a useful error message being presented to the end user. This..
How to create a modular JSF 2.0 application? http://stackoverflow.com/questions/6199458/how-to-create-a-modular-jsf-2-0-application exactly how to tell JSF to evaluate it. That said I can imagine a component that would take the resource path grab the markup..
Why won't this generic java code compile? http://stackoverflow.com/questions/662191/why-wont-this-generic-java-code-compile public Map getMap In other words I think you can imagine a raw type as being the same API as the generic type but with..
Difference between ActionBarSherlock and ActionBar Compatibility http://stackoverflow.com/questions/7844517/difference-between-actionbarsherlock-and-actionbar-compatibility
Before and After Suite execution hook in jUnit 4.x http://stackoverflow.com/questions/82949/before-and-after-suite-execution-hook-in-junit-4-x public void test1 System.out.println test1 ...and you can imagine that Test2 looks similar. If you ran TestSuite you would get..
Configuring Log4j Loggers Programmatically http://stackoverflow.com/questions/8965946/configuring-log4j-loggers-programmatically in Java as opposed to XML or a log4j.properties file . I imagine that normally I would define these Logger s somewhere in some..
Why aren't video games written in Java? [closed] http://stackoverflow.com/questions/1034458/why-arent-video-games-written-in-java exploit the hardware due to the overhead of the runtime. Imagine Crysis being written in Java... even if that's the only visible..
http://stackoverflow.com/questions/1036666/use-of-array-of-zero-length String getFileNames String criteria to get some filenames. Imagine that you don't find any filenames satisfying criteria. What..
When exactly is it leak safe to use (anonymous) inner classes? http://stackoverflow.com/questions/10864853/when-exactly-is-it-leak-safe-to-use-anonymous-inner-classes create one temporarily but use the creations indefinitely. Imagine what happens when we change the constructor just slightly. public..
How to reference a generic return type with multiple bounds http://stackoverflow.com/questions/14464226/how-to-reference-a-generic-return-type-with-multiple-bounds complicated when the caller is in generic scope itself. Imagine instead of getting a List Foo1 we're getting a List T putting..
Dynamically find the class that represents a primitive Java type http://stackoverflow.com/questions/180097/dynamically-find-the-class-that-represents-a-primitive-java-type come up with these Class references dynamically as well. Imagine a delimited file a list of method names with lists of parameter..
http://stackoverflow.com/questions/1949454/understanding-basic-recursion something java recursion share improve this question Imagine you are the computer and someone hands you a paper with factorial..
Populating child dropdownlists in JSP/Servlet http://stackoverflow.com/questions/2263996/populating-child-dropdownlists-in-jsp-servlet lengthy and expensive when you have a lot of items. Imagine that you have 3 steps of each 100 possible items that would..
Why do I need to override the equals and hashCode methods in Java? http://stackoverflow.com/questions/2265503/why-do-i-need-to-override-the-equals-and-hashcode-methods-in-java return false return true Override only hashCode Imagine you have this MyClass first new MyClass a first MyClass second..
Any simple way to explain why I cannot do List<Animal> animals = new ArrayList<Dog>()? [duplicate] http://stackoverflow.com/questions/2346763/any-simple-way-to-explain-why-i-cannot-do-listanimal-animals-new-arraylistd generics oop covariance share improve this question Imagine you create a list of Dogs . You then declare this as List Animal..
Stateless and Stateful Enterprise Java Beans http://stackoverflow.com/questions/2351220/stateless-and-stateful-enterprise-java-beans only to them. The app server ensures that this is so. Imagine how popular your app would be if you could start shopping and..
What's the purpose behind wildcards and how are they different from generics? http://stackoverflow.com/questions/2922811/whats-the-purpose-behind-wildcards-and-how-are-they-different-from-generics important when you declare a parameter for a method. Imagine you have a method int countLegs List extends Animal animals..
Writing image to servlet response with best performance http://stackoverflow.com/questions/2979758/writing-image-to-servlet-response-with-best-performance use byte . Each byte eats yes one byte from Java's memory. Imagine 100 concurrent users which requests 10 images of each 100KB..
Can't add value to the Java collection with wildcard generic type http://stackoverflow.com/questions/3716920/cant-add-value-to-the-java-collection-with-wildcard-generic-type this question It's doing that for the sake of safety. Imagine if it worked List Child childList new ArrayList Child childList.add..
How to use ClassLoader.getResources() correctly? http://stackoverflow.com/questions/5193786/how-to-use-classloader-getresources-correctly E.g. finding all resources in the META INF directory Imagine something like getClass .getClassLoader .getResources META INF..
How do synchronized static methods work in Java? http://stackoverflow.com/questions/578904/how-do-synchronized-static-methods-work-in-java more time accessing the DB than performing the actual job. Imagine the following scenario Client A and B attempt to insert different..
The case against checked exceptions http://stackoverflow.com/questions/613954/the-case-against-checked-exceptions deal with it. This would be clearer with a counter case. Imagine I'm writing a table API. I have table model somewhere with an..
How to create a modular JSF 2.0 application? http://stackoverflow.com/questions/6199458/how-to-create-a-modular-jsf-2-0-application param value context param Imagine that you've a META INF resources foo bar.xhtml in random.jar..
Is there any easy way to preprocess and redirect GET requests? http://stackoverflow.com/questions/7294651/is-there-any-easy-way-to-preprocess-and-redirect-get-requests JSF stores session scoped beans as HttpSession attributes. Imagine that you've a JSF session scoped managed bean UserManager which..
Using Scala traits with implemented methods in Java http://stackoverflow.com/questions/7637752/using-scala-traits-with-implemented-methods-in-java Now consider how traits as stackable modifications work. Imagine having a really useful class Foo class Foo def bar Foo which..
CSRF, XSS and SQL Injection attack prevention in JSF http://stackoverflow.com/questions/7722159/csrf-xss-and-sql-injection-attack-prevention-in-jsf u.username ' username ' AND u.password md5 ' password ' Imagine what would happen if the enduser chooses the following name..
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