java Programming Glossary: examplesJava: maintaining aspect ratio of JPanel background image http://stackoverflow.com/questions/11959758/java-maintaining-aspect-ratio-of-jpanel-background-image I looked around for resources and it seems that many examples use a BufferedImage but I am not will this pose a problem I'll..
Sorting an ArrayList of Contacts based on name? [duplicate] http://stackoverflow.com/questions/1814095/sorting-an-arraylist-of-contacts-based-on-name Collections Object Ordering Although I will give some examples I would recommend to read it anyway. There are various way to..
Placing component on Glass Pane http://stackoverflow.com/questions/2561690/placing-component-on-glass-pane this question Besides the pointers to the LayerPane examples already provided the issue with your original code centers around..
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 beforehand the posted code snippets are all basic examples. You'll need to handle trivial IOException s and RuntimeException.. using URLConnection#getInputStream and so on. The above examples does exactly that so the connect call is in fact superfluous... a multipart form data request. Also see this answer for examples of both the FileUpload and the Servelt 3.0 approaches. Last..
Change private static final field using Java reflection http://stackoverflow.com/questions/3301635/change-private-static-final-field-using-java-reflection How to limit setAccessible to only 𦧺egitimate uses Has examples of messing with Integer 's cache mutating a String etc Caveats..
JSTL in JSF2 Facelets… makes sense? http://stackoverflow.com/questions/3342984/jstl-in-jsf2-facelets-makes-sense @ViewScoped fails in tag handlers To see some real world examples where JSTL tags are helpful i.e. when really properly used during..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications example.com login.do etc and you should change the code examples in this answer also the ActionFactory to extract the register..
What is reflection, and why is it useful? http://stackoverflow.com/questions/37628/what-is-reflection-and-why-is-it-useful when running the unit test. There are some good reflection examples to get you started at http docs.oracle.com javase tutorial reflect..
Singletons vs. Application Context in Android? http://stackoverflow.com/questions/3826905/singletons-vs-application-context-in-android problems of using singletons and having seen several examples of Android applications using singleton pattern I wonder if..
What is a stack trace, and how can I use it to debug my application errors? http://stackoverflow.com/questions/3988788/what-is-a-stack-trace-and-how-can-i-use-it-to-debug-my-application-errors Usually stack traces are much more complex than the two examples above. Here's an example it's a long one but demonstrates several.. MyEntityService.java 59 Like in previous examples we should look at MyEntityService.java on line 59 because that's..
Can a progress bar be used in a class outside main? http://stackoverflow.com/questions/4637215/can-a-progress-bar-be-used-in-a-class-outside-main the problem is a violation of EDT rules but all the examples I've seen on them involve a main argument. The frame appears..
Draw a line in a JPanel with button click in Java http://stackoverflow.com/questions/5797862/draw-a-line-in-a-jpanel-with-button-click-in-java GUI and I want a line in the JPanel in white. I find many examples but the problem is the how to use it. In many exmples always..
Remove Top-Level Container on Runtime http://stackoverflow.com/questions/6309407/remove-top-level-container-on-runtime by starting with an artificially small heap. Additional examples are shown here . When memory is very limited I've used two approaches..
How can I put a control in the JTableHeader of a JTable? http://stackoverflow.com/questions/7137786/how-can-i-put-a-control-in-the-jtableheader-of-a-jtable to select all or none of the check boxes too. These recent examples mentioned using JCheckBox in the table header but the implementation.. whatever is wanted has do be controlled by ourselves examples are around f.i. JIDE grid supports adding components fiddling..
Java 256-bit AES Password-Based Encryption http://stackoverflow.com/questions/992019/java-256-bit-aes-password-based-encryption I need to implement 256 bit AES encryption but all the examples I have found online use a KeyGenerator to generate a 256 bit..
Is polymorphism possible without inheritance http://stackoverflow.com/questions/11732422/is-polymorphism-possible-without-inheritance and overloading are not at all related to inheritance. Examples Inclusion List Integer myInts new ArrayList Integer This is..
Java library for parsing command-line parameters? http://stackoverflow.com/questions/1200054/java-library-for-parsing-command-line-parameters with a mix of parameters and commands similar to svn . Examples app url command1 app url command2 parameter2 x app url command1..
What's Java Hybrid - Applet + Application? http://stackoverflow.com/questions/12449889/whats-java-hybrid-applet-application of two top level containers JFrame and JApplet . Examples are seen here here and here . Addendum How does that work The..
Location of String keys in L&F http://stackoverflow.com/questions/12519951/location-of-string-keys-in-lf strings of text that are automatically printed on them. Examples is JFileChooser. Also there is a JDialog or JOptionPane that..
http://stackoverflow.com/questions/13017348/org-apache-jasper-jasperexception-the-function-test-must-be-used-with-a-prefix part of Java EE 6 which in turn also covers Servlet 3.0. Examples of Servlet 3.0 containers are Tomcat 7.x Glassfish 3.x and JBoss..
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 you can think of by the correct choice of Format . Examples for which I already used it String input where the String may..
What does it mean to program to a interface? http://stackoverflow.com/questions/1413543/what-does-it-mean-to-program-to-a-interface Implementation However I don't understand the implications Examples would help. EDIT I have received a lot of good answers even..
Capitalize First Char of Each Word in a String Java http://stackoverflow.com/questions/1892765/capitalize-first-char-of-each-word-in-a-string-java of each word in a String and does not affect the others Examples jon skeet Jon Skeet miles o'Brien Miles O'Brien B remains capital..
Why double width = 50/110000; the output is 0.000000000000000? http://stackoverflow.com/questions/19620225/why-double-width-50-110000-the-output-is-0-000000000000000 quotient as the answer . So the answer is an integer. Examples In real life In Java 4 3 1.33333 4 3 1 25 12 2.083333 25 12..
Method Overloading. Can you overuse it? http://stackoverflow.com/questions/248222/method-overloading-can-you-overuse-it the opportunity to introduce overloading for each purpose Examples for GetEmployees public IList Employee GetEmployeesBySupervisor.. Employee GetEmployeesByDepartment Department department Examples for GetProduct public IList Product GetProductById int productId..
Is Catching a Null Pointer Exception a Code Smell? http://stackoverflow.com/questions/2586290/is-catching-a-null-pointer-exception-a-code-smell code which run pretty much random code from other modules. Examples for such defensive structures would be the EDT ThreadPools Executors..
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 more convenient in this all HttpClient Tutorial HttpClient Examples Parsing and extracting HTML If all you want is parsing and extracting..
JAXB Mapping cyclic references to XML http://stackoverflow.com/questions/3073364/jaxb-mapping-cyclic-references-to-xml on the unmarshal. http wiki.eclipse.org EclipseLink Examples MOXy JPA Relationships @Entity @XmlRootElement public class..
How can we match a^n b^n with Java regex? http://stackoverflow.com/questions/3644266/how-can-we-match-an-bn-with-java-regex some number of a 's followed by an equal number of b 's. Examples of strings in this language are ab aabb aaabbb . This language..
When to use pointers and when not to? http://stackoverflow.com/questions/397263/when-to-use-pointers-and-when-not-to a toolkit that prefers to present GUI widgets as pointers. Examples could include but are certainly not limited to wxWidgets and..
http://stackoverflow.com/questions/4709175/why-and-what-for-java-enum can only take one out of a small set of possible values. Examples would be things like type constants contract status permanent..
How to read PDF files using java [closed] http://stackoverflow.com/questions/4784825/how-to-read-pdf-files-using-java easy to use if you're just doing basic text extraction. Examples are provided here . It explains it on the page but one thing..
Apache http client or URLConnection http://stackoverflow.com/questions/4799151/apache-http-client-or-urlconnection and edge cases where I'd fall back to a URLConnection . Examples of edge cases here and here EDIT A similar question has been..
What does Java option -Xmx stand for? http://stackoverflow.com/questions/5374455/what-does-java-option-xmx-stand-for on Solaris 2.6 and x86 platforms minus overhead amounts. Examples Xmx83886080 Xmx81920k Xmx80m So in simple words you are saying..
|