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java Programming Glossary: letJComponents not showing up with picture background? http://stackoverflow.com/questions/11369171/jcomponents-not-showing-up-with-picture-background this question Here first watch this small example do let me know if you understood what is going on in here. Then only..
Java: maintaining aspect ratio of JPanel background image http://stackoverflow.com/questions/11959758/java-maintaining-aspect-ratio-of-jpanel-background-image for painting the image If I lack any information please let me know. public class MonitorPanel extends JPanel Image img..
What is a Null Pointer Exception? http://stackoverflow.com/questions/218384/what-is-a-null-pointer-exception most trivial cases the compiler will catch the problem and let you know that num may not have been initialized but sometime..
Populating child dropdownlists in JSP/Servlet http://stackoverflow.com/questions/2263996/populating-child-dropdownlists-in-jsp-servlet child dropdownlists in JSP Servlet Suppose I am having three dropdownlist controls named dd1 dd2.. on value of dd1 . Can anyone tell me how do I call servlet for this problem java javascript jsp servlets drop down menu.. I call servlet for this problem java javascript jsp servlets drop down menu share improve this question There are basically..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android is really not clear. Add on top of that paging out to disk let alone swap which we don't use on Android and it is even less..
How to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet to upload files to server using JSP Servlet How can I upload files to server using JSP Servlet I tried.. Servlet How can I upload files to server using JSP Servlet I tried this form action upload method post input type text.. this FileItemFactory factory new DiskFileItemFactory ServletFileUpload upload new ServletFileUpload factory List items upload.parseRequest..
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 type and generates a compilation warning by the first bullet point in the above definition inn also has a raw type by the.. above definition inn also has a raw type by the second bullet point. MyType.Nested is not a parameterized type even though.. names . Even better though is NOT to use a raw type and let the compiler does all the work for you harnessing the power..
What's the proper way to test a class with private methods using JUnit? http://stackoverflow.com/questions/34571/whats-the-proper-way-to-test-a-class-with-private-methods-using-junit and private static methods. The following patterns will let you do pretty much anything related to the private methods and.. Notes targetClass.getDeclaredMethod methodName argClasses lets you look into private methods. The same thing applies for getDeclaredField..
http://stackoverflow.com/questions/4112686/how-to-use-servlets-and-ajax to use Servlets and Ajax I'm very new to web apps and Servlets and I have.. to use Servlets and Ajax I'm very new to web apps and Servlets and I have the following question Whenever I print something.. question Whenever I print something inside the servlet and call it by the webbrowser it returns a new page containing..
Calling awt Frame methods from subclass http://stackoverflow.com/questions/5665156/calling-awt-frame-methods-from-subclass wall. The general layout I decided on was to contain PApplets within a AWT Frame and have the Frame close. The reason for.. I was told that you should only have on instance of a Papplet at a time. PApplet is the Applet class in Processing a rendering.. should only have on instance of a Papplet at a time. PApplet is the Applet class in Processing a rendering library. I have..
Java: checked vs unchecked exception explanation http://stackoverflow.com/questions/6115896/java-checked-vs-unchecked-exception-explanation this public void someMethod throws Exception Why do they let the exception bubble up Isn't handling the error sooner better.. warning if it's in the service layer don't catch it at all let it bubble. Just don't swallow the exception. If an exception.. and should be avoided. Alas there is no single rule to let you determine when to catch when to rethrow when to use checked..
http://stackoverflow.com/questions/995514/https-connection-android but if you want an actual handshake to occur you have to let android know of your certificate. If you want to just accept..
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 a type a character in a text field and it does not appear. Let me illustrate this with some code quite some code actually ...
Compiling a java program into an exe [duplicate] http://stackoverflow.com/questions/2011664/compiling-a-java-program-into-an-exe other languages. Download http www.advancedinstaller.com Let me know other tools that you have used to convert JAR to EXE...
Build Eclipse Java Project from Command Line http://stackoverflow.com/questions/206473/build-eclipse-java-project-from-command-line Guys I'm looking for an answer that does NOT include ant. Let me re iterate the original question ....... Is there a way to..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications a do nothing Action for the case there's no mapping. Let it for example return directly the request.getPathInfo .substring..
Multiple wildcards on a generic methods makes Java compiler (and me!) very confused http://stackoverflow.com/questions/3546745/multiple-wildcards-on-a-generic-methods-makes-java-compiler-and-me-very-confu generic methods makes Java compiler and me very confused Let's first consider a simple scenario see complete source on ideone.com.. see if we can in fact invoke probablyIllegal in any way. Let's try the easy case first and choose the same type for the two.. but rather misunderstanding what List List really means. Let's first remind ourselves what it means that Java generics is..
Change ListView background - strange behaviour http://stackoverflow.com/questions/4583349/change-listview-background-strange-behaviour onclick background image share improve this question Let me show you the code that I use for every ListView and properly..
http://stackoverflow.com/questions/490091/java-generics types List List Object List Can I get an answer not a link Let me make this more specific. When would I want to use public.. templates. The java beasties are far tamer to deal with. Let me answer your questions functionally if that's not a naughty..
Cannot Make Static Reference to Non-Static Method http://stackoverflow.com/questions/4969171/cannot-make-static-reference-to-non-static-method on different data spaces instance data and class data Let me try and explain. Consider this class psuedocode class Test..
Facebook Android Generate Key Hash http://stackoverflow.com/questions/5306009/facebook-android-generate-key-hash
Java: checked vs unchecked exception explanation http://stackoverflow.com/questions/6115896/java-checked-vs-unchecked-exception-explanation exceptions for programming errors Item 58 in 2nd edition Let see if I understand this correctly Here is my understanding..
The case against checked exceptions http://stackoverflow.com/questions/613954/the-case-against-checked-exceptions case that the file they are trying to open doesn't exist. Let me rephrase that Every client programmer using this API should.. Sorry didn't mean to make this so long and waffly. Let me finish with two suggestions A API programmers use checked..
How do I simulate a buffered peripheral device with SwingWorker? http://stackoverflow.com/questions/7036509/how-do-i-simulate-a-buffered-peripheral-device-with-swingworker thread updating the model as the timer fires. Let the updated model notify the view in the normal course of posting.. view in the normal course of posting events to the EDT. Let the controller cancel and schedule the card reader model in..
How to best position Swing GUIs http://stackoverflow.com/questions/7143287/how-to-best-position-swing-guis f.add new JTextArea s 3 28 suggest a size f.pack Let the OS handle the positioning f.setLocationByPlatform true f.setVisible..
“Comparison method violates its general contract!” http://stackoverflow.com/questions/8327514/comparison-method-violates-its-general-contract improve this question Your comparator is not transitive. Let A be the parent of B and B be the parent of C . Since A B and..
http://stackoverflow.com/questions/9010734/why-do-i-need-to-nest-a-component-with-rendered-some-in-another-component-w so I'm curious as to understand the workings around this. Let me illustrate with an example I have a facelet .xhtml page that..
http://stackoverflow.com/questions/9404625/java-pass-by-reference Java always passes arguments by value NOT by reference. Let me explain this through an example public class Main public..
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