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java Programming Glossary: e.gCalculating the Difference Between Two Java Date Instances http://stackoverflow.com/questions/1555262/calculating-the-difference-between-two-java-date-instances delta by using getTime new java.util.Date .getTime oldDate.getTime However this just leaves me with a Long representing milliseconds... a length of time without the actual time boundaries e.g. represent two hours If you only care about time comparisions..
Java web development, what skills do I need? [closed] http://stackoverflow.com/questions/1958808/java-web-development-what-skills-do-i-need ever want to go EJB or JPA then you'd like to pick another e.g. JBoss AS EAP or GlassFish or TomEE . JBoss and TomEE uses Tomcat's..
Recommendations for a heap analysis tool for Java? [closed] http://stackoverflow.com/questions/2064427/recommendations-for-a-heap-analysis-tool-for-java for Java closed List your favorite heap analysis tools e.g. jprofiler jmap ... . Let's keep it one tool per answer with..
Why JSF calls getters multiple times http://stackoverflow.com/questions/2090033/why-jsf-calls-getters-multiple-times ComponentSystemEvent event Or in some SystemEvent method e.g. f event type preRenderView . someProperty loadSomeProperty.. change ValueChangeEvent event Or in some FacesEvent method e.g. h inputXxx valueChangeListener . someProperty loadSomeProperty.. AjaxBehaviorEvent event Or in some BehaviorEvent method e.g. f ajax listener . someProperty loadSomeProperty public void..
What is a raw type and why shouldn't we use it? http://stackoverflow.com/questions/2770321/what-is-a-raw-type-and-why-shouldnt-we-use-it where raw types must be used in new code Class literals e.g. List.class not List String .class instanceof operand e.g. o.. e.g. List.class not List String .class instanceof operand e.g. o instanceof Set not o instanceof Set String See also Why is..
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 s whenever you concurrently send large POST requests e.g. uploading files . To avoid this you would like to set the HttpURLConnection#setFixedLengthStreamingMode.. Disposition form data name textFile filename textFile.getName .append CRLF writer.append Content Type text plain charset.. Disposition form data name binaryFile filename binaryFile.getName .append CRLF writer.append Content Type URLConnection.guessContentTypeFromName..
What are the pros and cons of the leading Java HTML parsers? http://stackoverflow.com/questions/3152138/what-are-the-pros-and-cons-of-the-leading-java-html-parsers use this kind of HTML parsers to tidy the HTML source e.g. replacing the HTML valid br by a XML valid br so that you can.. you already have moderate experience with CSS selectors by e.g. developing websites and or using jQuery . Summary The pros..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files request less or more regardless of the requested page e.g. checking if an user is logged in then implement a filter and.. you want to invoke some Java code to preprocess a request e.g. preloading some list from a database to display in some table.. you want to invoke some Java code to postprocess a request e.g. processing a form submit then implement a servlet and write..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications JSP. Map this servlet on a specific url pattern in web.xml e.g. pages .do or even just .html . In case of prefix patterns as.. if classFile.isInstanceOf Action.class actions.put classFile.getAnnotation mapping classFile.newInstance Keep in mind to create..
http://stackoverflow.com/questions/40480/is-java-pass-by-reference pass by reference however I've seen a couple of blog posts e.g. this blog that claim it's not. I don't think I understand the..
The Use of Multiple JFrames, Good/Bad Practice? http://stackoverflow.com/questions/9554636/the-use-of-multiple-jframes-good-bad-practice any number of ways of displaying many elements in one GUI e.g. CardLayout short demo. . Good for Showing wizard like dialogs...
getResourceAsStream() vs FileInputStream http://stackoverflow.com/questions/2308188/getresourceasstream-vs-fileinputstream absolute paths in the File API instead of relative paths. E.g. C full path to file.ext . You don't want to hardcode or guess..
Java: when to use static methods http://stackoverflow.com/questions/2671496/java-when-to-use-static-methods involves two Car objects and still want it to be static. E.g. Car theMoreEfficientOf Car c1 Car c2 . Although this could..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files a filter and write code accordingly in doFilter method. E.g. public void doFilter ServletRequest request ServletResponse.. a servlet and write code accordingly in doGet method. E.g. protected void doGet HttpServletRequest request HttpServletResponse.. a servlet and write code accordingly in doPost method. E.g. protected void doPost HttpServletRequest request HttpServletResponse..
Is there a good command line argument parser for Java? [closed] http://stackoverflow.com/questions/367706/is-there-a-good-command-line-argument-parser-for-java library for command line programs written in Java E.g. the equivalent of Python's optparse java command line command..
How to increase to Java stack size? http://stackoverflow.com/questions/3700459/how-to-increase-to-java-stack-size succeeds and sometimes yields a StackOverflowError . E.g. for 1 20 Xss18m was enough in 7 runs out of 10 and Xss19m wasn't..
Generating all permutations of a given string http://stackoverflow.com/questions/4240080/generating-all-permutations-of-a-given-string an elegant way to find all the permutations of a string. E.g. ba would be ba and ab but what about abcdefgh Is there any..
Left padding integers with zeros in Java http://stackoverflow.com/questions/473282/left-padding-integers-with-zeros-in-java to pad out integers up to 9999 with the leading zeros. E.g. 1 0001 I know this is probably simple and as a parallel task..
How to use JSF generated HTML element ID in CSS selectors? http://stackoverflow.com/questions/5878692/how-to-use-jsf-generated-html-element-id-in-css-selectors several other ways to solve this Use class instead of id . E.g. h dataTable id phoneTable styleClass pink with .pink background.. separator by the following context param in web.xml . E.g. context param param name javax.faces.SEPARATOR_CHAR param name..
JSF2.0 doesn't support cross-field validation, is there a workaround? http://stackoverflow.com/questions/6282466/jsf2-0-doesnt-support-cross-field-validation-is-there-a-workaround values inside the validator by UIInput#getSubmittedValue . E.g. h form h inputHidden value true f validator validatorId fooValidator..
When to use <ui:include>, tag files, composite components and/or custom components? http://stackoverflow.com/questions/6822000/when-to-use-uiinclude-tag-files-composite-components-and-or-custom-componen split main page layout fragments into reuseable templates. E.g. header menu footer etc. An example can be found in my answer.. components in order to prevent minimize code duplication. E.g. a group of label input message components. The major difference.. or HTML and get physically rendered as single component. E.g. a component which shows a rating in stars based on a given..
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 can have several views different APIs or capabilities. E.g. A class can be Runnable and Callable at the same time while..
Can I have a textfield inside a label? http://stackoverflow.com/questions/10021579/can-i-have-a-textfield-inside-a-label component' by adding the required parts to a JPanel . E.G. import java.awt.FlowLayout import javax.swing. class TimeBeforeClass..
Writing multiline JTextArea content into file http://stackoverflow.com/questions/13438104/writing-multiline-jtextarea-content-into-file By default this will store the model as plain text. E.G. BufferedWriter writer new BufferedWriter new FileWriter filename.txt..
http://stackoverflow.com/questions/13517770/jfilechooser-filters list It might change from version to version and OS to OS. E.G. I am not surprised that Windows has support to load BMP but..
How do I flip an image horizontally flip with glReadPixels() Bufferedimage and out put with ImageIO? http://stackoverflow.com/questions/13742365/how-do-i-flip-an-image-horizontally-flip-with-glreadpixels-bufferedimage-and-o javax.imageio glreadpixels share improve this question E.G. of flipping an image horizontally using an AffineTransform..
Call a method when application closes http://stackoverflow.com/questions/13800621/call-a-method-when-application-closes method then set the frame invisible and dispose of it. E.G. import java.awt. import java.awt.event. import java.net.URI..
http://stackoverflow.com/questions/13866839/actionlistener-for-jlabel ActionListener and looks and feels more like an HTML link. E.G. That is how it appears when the mouse is hovering over the..
Collision detection with complex shapes http://stackoverflow.com/questions/14574045/collision-detection-with-complex-shapes by drawing and dealing with Shape and Area instances. E.G. Yellow is a little animated 'player'. The bounds of the image..
'Fill' Unicode characters in labels http://stackoverflow.com/questions/18686199/fill-unicode-characters-in-labels version of my chess piece not one with its insides filled. E.G. Is there a way to fill only the character If not I guess I'll..
Getting a directory inside a .jar http://stackoverflow.com/questions/5830581/getting-a-directory-inside-a-jar listing of the image files short of help from the server. E.G. Some servers are insecurely set up to produce an HTML based..
How to stop a music Clip in Java? http://stackoverflow.com/questions/5833553/how-to-stop-a-music-clip-in-java into the DataLine.stop method. Clip implements DataLine . E.G. ClipControl.java import java.awt.event. import javax.swing...
It's possible in Swing configure a JTextField to only accept numbers? [duplicate] http://stackoverflow.com/questions/6111003/its-possible-in-swing-configure-a-jtextfield-to-only-accept-numbers in something they'd like to choose using the arrow keys. E.G. import javax.swing. class NumberChooser public static void..
Embed a 3rd-party JApplet in a Swing GUI & pass it parameters http://stackoverflow.com/questions/6129825/embed-a-3rd-party-japplet-in-a-swing-gui-pass-it-parameters an AppletStub set it as the stub of the applet instance. E.G. applet code 'ParamApplet' width '200' height '200' param name..
Getting fonts, sizes, bold,…etc http://stackoverflow.com/questions/6965038/getting-fonts-sizes-bold-etc The sizes and styles can be set at run time. E.G. import java.awt. import javax.swing. class ShowFonts public..
Javascript to Java Applet communication http://stackoverflow.com/questions/7278626/javascript-to-java-applet-communication 'decisiontreeapplet' ..and it will most likely work. E.G. HTML html body script type 'text javascript' function callApplet..
How to find a button source in AWT (calculator homework) http://stackoverflow.com/questions/7441625/how-to-find-a-button-source-in-awt-calculator-homework of the I O text field and write the result back to it. E.G. import java.awt. import java.awt.event. import javax.swing...
http://stackoverflow.com/questions/7782721/java-raw-audio-output It is pretty simple to generate a sound in memory. E.G. The important part of generating the tone and storing it in..
Use animated GIF in desktop application http://stackoverflow.com/questions/8958808/use-animated-gif-in-desktop-application share improve this question new JLabel new ImageIcon URL E.G. import javax.swing. import java.net.URL class ShowAnimatedGif..
Find absolute java.exe path programatically from java code http://stackoverflow.com/questions/9006127/find-absolute-java-exe-path-programatically-from-java-code how is it possible to find out the location of javaw.exe E.G. import java.io.File class JavawLocation public static void..
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