Can anyone recommend whether I should do something like: os = new GzipOutputStream(new BufferedOutputStream(...)); or os = new BufferedOutputStream(new GzipOutputStream(...)); Which is more efficient? Should I use BufferedOutputStream at all? ...
Does anyone know a good library for PDF rendering for Java? Ideally, it should support not only displaying the image but also retrieving the text from it, finding which text is at a certain location, etc. ...
I'm trying to write unicode characters (♠) using System.out, and a question mark gets printed instead. I'm using IntelliJ on Windows, and trying to print within the IDE. ...
hi all, i want to format date to string in hql select, for example i have purchasing data with transaction date in it: class Purchase { private Date datePurchase } and i want to select date in a certain format, for example yyyyMMdd, can i do that in hql? actually i can iterate through all purchase data returned by query, and star...
Can someone please show me some sample code on how to use an AlarmManager in android. I have been playing around with some code for a few days and it just won't work... I need to trigger a block of code after 20 minutes from the AlarmManager being set. Thanks. ...
I have a class C. Class E extends it. E e = new E(); C c = new C(); Why is e = (E) c; Upon further review: though numeric conversions have the same syntax as casting objects, some confusion arose. At any event, the above does not give a compilation, but rather a runtime error - so a class can be casted to subclass in some instances...
What data types can be passed between c++ and java/java to c++? Also, are the data types equivalent in terms of size? ...
Possible Duplicate: What new features in java 7 do you find most useful? What are some features that you like in the next version of Java? ...
I have a project that contains a single module, and some dependencies. I'd like to create a jar, in a separate directory, that contains the compiled module. In addition, I'd like to have the dependencies present beside my module. No matter how I twist IntelliJ's "build jar" process, the output of my module appears empty (besides a META-...
I am trying to undecorate a JInternalFrame, i.e. remove the default titlebar using the following code; BasicInternalFrameUI ui = (BasicInternalFrameUI)internalFrame.getUI(); ui.getNorthPane().setPrefrredSize(new Dimension(0,0)); I works on windows but the second line throws a NullPointerException on MacOS Any ideas why and how to get...
Are there any tips you have for preparing useful example code ? ...
I think what I need is called reverse url resolution in Django. Lets say I have an AddUserController that goes something like this: @Controller @RequestMapping("/create-user") public class AddUserController{ ... } What I want is some way to dynamically find the url to this controller or form a url with parameters to it from the view (...
Class someInterface = Class.fromName("some.package.SomeInterface"); How do I now create a new class that implements someInterface? I need to create a new class, and pass it to a function that needs a SomeInterface as an argument. ...
I'm writing an XML file with the following code: Source source = new DOMSource(rootElement); Result result = new StreamResult(xmlFile); Transformer transformer = TransformerFactory.newInstance().newTransformer(); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); transformer.transform(source, result); and this is the output file...
Given: two images of the same subject matter; the images have the same resolution, colour depth, and file format; the images differ in size and rotation; and two lists of (x, y) co-ordinates that correlate the images. I would like to know: How do you transform the larger image so that it visually aligns to the second image? (Option...
Is there a shlex alternative for Java? I'd like to be able to split quote delimited strings like the shell would process them. For example, if I'd send : one two "three four" and perform a split, I'd like to receive the tokens onetwothree four ...
Hello, I have a method that looks like this on Java: public void myMethod(Object... parms); But I can't call this method as expected from the scripts. If, in ruby, I do: $myObject.myMethod(42); It gives me org.jruby.exceptions.RaiseException: could not coerce Fixnum to class [Ljava.lang.Object If I try the following in Javascrip...
Having played with Linq (to SQL and Objects) as well as the Entity Framework from Microsoft recently, I was wondering what the non-.Net (specifically Java) equivalents are? ...
I have spent most of my web-development career in the Microsoft camp, but for different reasons I am trying to look at options. Some years back I did a bit of Java/Struts development in eclipse, which was nice for its time but my memories of it are not close to what Visual Studio delivers today. Some of the strengths of the MS stack a...
Say, you are submitting a form, which affects your database (adding records/ deleting them/ updating them) and this is how your request looks like: POST /application/action=update Now, say, you are done with your update, so you would like to take the user to the home page. Response.sendRedirect /application/action=home This works w...