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java Programming Glossary: onlyWhy is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array the unpredictable branch to the outer loop. So not only is it immune the mispredictions it is also twice as fast as..
How to round a number to n decimal places in Java http://stackoverflow.com/questions/153724/how-to-round-a-number-to-n-decimal-places-in-java most people expect in most situations. I also would like only significant digits to be displayed. That is there should not..
Why JSF calls getters multiple times http://stackoverflow.com/questions/2090033/why-jsf-calls-getters-multiple-times action listener methods should be used. They are executed only once at some point of request based JSF lifecycle and that's..
What is the difference between JSF, Servlet and JSP? http://stackoverflow.com/questions/2095397/what-is-the-difference-between-jsf-servlet-and-jsp such as composite components while JSP basically only offers the jsp include for templating so that you're forced..
How to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet input type file name file input type submit form However I only get the file name not the file content. When I add enctype multipart.. didn't natively support multipart form data . It supports only the default form enctype of application x www form urlencoded..
What is a serialVersionUID and why should I use it? http://stackoverflow.com/questions/285793/what-is-a-serialversionuid-and-why-should-i-use-it modifier where possible since such declarations apply only to the immediately declaring class serialVersionUID fields are..
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 total count publishing the progress.... if fileLength 0 only if total length is known publishProgress int total 100 fileLength.. useful. 3. Use DownloadManager class GingerBread and newer only This method is awesome you do not have to worry about downloading..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading a particular servlet then this servlet gets instantiated only the first time the first user accessed it or does it get instantiated..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications consists of a mix of design patterns. I'll mention only the most important ones. Model View Controller pattern The core.. kind of Mediator pattern . It should consist of only a single servlet which provides a centralized entry point of..
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 jsp api.jar el api.jar j2ee.jar javaee.jar etc. It would only lead to future portability compatibility classpath and maintainability..
How do I write a correct micro-benchmark in Java? http://stackoverflow.com/questions/504103/how-do-i-write-a-correct-micro-benchmark-in-java Do not expect too much from micro benchmarks they measure only a limited range of JVM performance characteristics. Rule 1 Always.. testing class loading specifically and in that case load only the test classes . Rule 2 is your first line of defense against..
How to: generic array creation http://stackoverflow.com/questions/529085/how-to-generic-array-creation c int s Use Array native method to create array of a type only known at run time @SuppressWarnings unchecked final E a E Array.newInstance..
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 are the negative consequences of using those methods I can only think adding portability between systems with different screen.. are the negative consequences of using those methods I can only think adding portability between systems with different screen..
The Use of Multiple JFrames, Good/Bad Practice? http://stackoverflow.com/questions/9554636/the-use-of-multiple-jframes-good-bad-practice multiple icons in their task bar when expecting to see only one. Plus the side effects of the coding problems.. A nightmare.. . As seen in this answer . The 'single row' part of that only works if they are all the same dimensions. Alternately if you..
JSP tricks to make templating easier? http://stackoverflow.com/questions/1296235/jsp-tricks-to-make-templating-easier course the tags work with the JSTL tags like c if etc. . Only thing you can't do within the body of a tag file tag is add..
http://stackoverflow.com/questions/13022754/java-bouncing-ball in the same location and moving in the same location... Only update the Ball within the context of the EDT. You don't really..
Is there any way to accept only numeric values in a JTextField? http://stackoverflow.com/questions/1313390/is-there-any-way-to-accept-only-numeric-values-in-a-jtextfield new Runnable @Override public void run Only set the caret if the textfield hasn't got a selection on it..
http://stackoverflow.com/questions/13999506/threads-with-key-bindings Entity e entities.add e void clearEntities entities.clear Only run this in another Thread public void gameLoop This value would..
Why would you ever implement finalize()? http://stackoverflow.com/questions/158174/why-would-you-ever-implement-finalize And as commenters point out it comes with GC overhead. Only use if you need that belt and suspenders safety. share improve..
http://stackoverflow.com/questions/176745/circular-references-in-java leaks garbage collection share improve this question Only a very naive implementation would have a problem with circular..
Java error: Only a type can be imported. XYZ resolves to a package http://stackoverflow.com/questions/1858463/java-error-only-a-type-can-be-imported-xyz-resolves-to-a-package error Only a type can be imported. XYZ resolves to a package I get the.. be imported. XYZ resolves to a package I get the error Only a type can be imported. XYZ resolves to a package. Someone has.. JSP An error occurred at line 7 in the generated java file Only a type can be imported. org.ivec.eresearch.knowledgeportal.model.Category..
How do I keep a user logged into my site for months? http://stackoverflow.com/questions/2185951/how-do-i-keep-a-user-logged-into-my-site-for-months need it here. It has a shorter lifetime than you need. Only use it to put the logged in user or the found user when it has..
Java KeyListener for JFrame is being unresponsive? http://stackoverflow.com/questions/286727/java-keylistener-for-jframe-is-being-unresponsive add your keyListener to every component that you need. Only the component with the focus will send these events. For instance..
Why are you not able to declare a class as static in Java? http://stackoverflow.com/questions/3584113/why-are-you-not-able-to-declare-a-class-as-static-in-java as static in Java java share improve this question Only nested classes can be static. By doing so you can use the nested..
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 on input size you will always run into this problem. Only after exhausting all of this will you need to look into caching..
Generate/get xpath from XML node java http://stackoverflow.com/questions/4746299/generate-get-xpath-from-xml-node-java root elemX @serial 'kefw90234kf2esda9231' Explanation Only elements that have no children elements or have attributes are..
Primitive type 'short' - casting in Java http://stackoverflow.com/questions/477750/primitive-type-short-casting-in-java b For long float double and int there is no need to cast. Only for short and byte values. java casting primitive short share..
Programatically Hide/Show Android Soft Keyboard [duplicate] http://stackoverflow.com/questions/7200281/programatically-hide-show-android-soft-keyboard Not neat though.. 2. To hide keyboard at activity start Only one answer worked for me which is provided by @Dyarish. And..
HTTP URL Address Encoding in Java http://stackoverflow.com/questions/724043/http-url-address-encoding-in-java with other URI classes like apaches httpclient EDIT 2 Only illegal characters get escaped by above code it does NOT escape..
CSRF, XSS and SQL Injection attack prevention in JSF http://stackoverflow.com/questions/7722159/csrf-xss-and-sql-injection-attack-prevention-in-jsf be escaped. You don't necessarily need h outputText here. Only when you're redisplaying user controlled input explicitly using..
Android project using httpclient --> http.client (apache), post/get method http://stackoverflow.com/questions/874227/android-project-using-httpclient-http-client-apache-post-get-method done and the HttpClient 4.x translation if I have found it Only parties who ask me problems HttpState state new HttpState HttpMethod..
http://stackoverflow.com/questions/948549/open-source-java-profilers Profilers What can you guys recommend to use with Java Only requirement is it should be open source or has not too expensive..
paintComponent does not work if its called by the recursive function? http://stackoverflow.com/questions/10338163/paintcomponent-does-not-work-if-its-called-by-the-recursive-function this question SIMPLE EXPLANATION AS TO WHY YOU COULD ONLY SEE THE LAST UPDATE A quote taken from Filthy Rich Clients by..
How to retrieve a list of directories QUICKLY in Java? http://stackoverflow.com/questions/1034977/how-to-retrieve-a-list-of-directories-quickly-in-java check for directory's existence. Otherwise you can not get ONLY directory names in most underlying OSs e.g. in Unix the directory..
ResultSet not closed when connection closed? http://stackoverflow.com/questions/103938/resultset-not-closed-when-connection-closed findbugs share improve this question One problem with ONLY closing the connection and not the result set is that if your..
JPanel which one of Listeners is proper for visibility is changed http://stackoverflow.com/questions/10880326/jpanel-which-one-of-listeners-is-proper-for-visibility-is-changed userCanSeeThePanel panel.isShowing This will return true ONLY if that panel is added to VISIBLE to user frame and isVisible..
Things possible in IntelliJ that aren't possible in Eclipse? http://stackoverflow.com/questions/239732/things-possible-in-intellij-that-arent-possible-in-eclipse Person p String name p. CTRL SHIFT SPACE and it shows you ONLY getName getAddress and toString only they are compatible by.. I'm this.getName from this.get CTRL SPACE and it shows ONLY getName and getAddress no matter how may get methods you have..
Jboss Seam: Enabling Debug page on WebLogic 10.3.2 (11g) http://stackoverflow.com/questions/2453746/jboss-seam-enabling-debug-page-on-weblogic-10-3-2-11g EAR EAR lib directory the application does not appear but ONLY the debug page with the following exception stacktrace at the.. META INF ejb jar.xml persistence.xml lib libraries ONLY USED by your EJB module goes here pureCharger war.war WEB INF.. jboss seam ui.jar jsf facelets.jar other libraries ONLY USED by your war module goes here jboss seam.jar lib JBoss Expression..
How to determine if a number is a prime with regex? http://stackoverflow.com/questions/2795065/how-to-determine-if-a-number-is-a-prime-with-regex more of any character. The character means one or more but ONLY of the previous character or group. So this is not two or four..
How come invoking a (static) method on a null reference doesn't throw NullPointerException? http://stackoverflow.com/questions/3293353/how-come-invoking-a-static-method-on-a-null-reference-doesnt-throw-nullpointe not require an instance to access. A static member should ONLY be accessed via a type expression. That is you should've written..
http://stackoverflow.com/questions/4170134/java-swing-jcomponent-size share improve this question I assume your image contains ONLY 4 'customWidget' objects in a 2x2 grid . Your code is working..
Java try/catch performance, is it recommended to keep what is inside the try clause to a minimum? http://stackoverflow.com/questions/4280831/java-try-catch-performance-is-it-recommended-to-keep-what-is-inside-the-try-cla keep the lines inside the try catch to bare minimum i.e. ONLY have inside the try clause the lines that can actually throw..
http://stackoverflow.com/questions/4289447/java-too-many-open-files too many files open . Now this particular exception can ONLY happen when a new file descriptor is requested i.e. when you..
Detect if Java application was run as a Windows admin http://stackoverflow.com/questions/4350356/detect-if-java-application-was-run-as-a-windows-admin if group.equals S 1 5 32 544 return true return false It ONLY works on windows and comes built in to the core Java package...
Spinner onItemSelected() executes when it is not suppose to [duplicate] http://stackoverflow.com/questions/5624825/spinner-onitemselected-executes-when-it-is-not-suppose-to is prematurely executed code which is intended to execute ONLY when a user physically makes a selection. Solution in onCreate..
Sending a screenshot (bufferedImage) over a socket in java http://stackoverflow.com/questions/6973848/sending-a-screenshot-bufferedimage-over-a-socket-in-java image ImageIO.read socket.getInputStream It works IF and ONLY IF I close the sender's outputStream after this line ImageIO.write..
Java: how to call non static method from main method? http://stackoverflow.com/questions/7379915/java-how-to-call-non-static-method-from-main-method Inside my main method because it is static I can call ONLY other static method Why For example I have another class public..
Why use Interfaces, Multiple Inheritance vs Interfaces, Benefits of Interfaces? http://stackoverflow.com/questions/8531292/why-use-interfaces-multiple-inheritance-vs-interfaces-benefits-of-interfaces I was having some other points. Interface is collection of ONLY abstract methods and final fields. There is no multiple inheritance..
Calculating and printing the nth prime number http://stackoverflow.com/questions/9625663/calculating-and-printing-the-nth-prime-number which I've already done. But I want to calculate and print ONLY the nth prime number User input while calculating the rest They..
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