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Android equivalent to NSNotificationCenter
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You could try this: http://developer.android.com/reference/java/util/Observer.html
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HttpServletRequest - how to obtain the referring URL?
I need to log URLs that are linking to my site in a Java Servlet.
4 Answers
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Remove file from SVN repository without deleting local copy
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When you want to remove one xxx.java file from SVN:
Go to workspace path where the file is located.
Delete that file from the folder (xxx.java)
Right click and commit, then a window will open.
Select the file you deleted (xxx.java) from the folder, and a...
How to format a number 0..9 to display with 2 digits (it's NOT a date)
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You can use:
String.format("%02d", myNumber)
See also the javadocs
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What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
...ee HTTP above).
The client receives the requested webpage and executes the JavaScript on the page which requests a file from the server at regular intervals (e.g. 0.5 seconds).
The server calculates each response and sends it back, just like normal HTTP traffic.
Ajax Long-Polling:
A client req...
Handle spring security authentication exceptions with @ExceptionHandler
... private static final boolean jaxb2Present =
ClassUtils.isPresent("javax.xml.bind.Binder", MessageProcessor.class.getClassLoader());
private static final boolean jackson2Present =
ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", MessageProcessor.class.getClass...
Detect whether there is an Internet connection available on Android [duplicate]
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The code is good, I just wish people would stick to Java coding style when writing java haveConnectedWifi, haveConnectedMobile. I know it's a small thing, but consistent code is more readable.
– Stuart Axon
Dec 9 '10 at 16:37
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Key hash for Android-Facebook app
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the command should be executed in the bin folder of java in windows systems.
– Antrromet
Feb 15 '12 at 4:31
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Combine multiple Collections into a single logical Collection?
... seen the read-only requirement earlier).
From the Iterables.concat( .. ) JavaDocs:
Combines multiple iterables into a
single iterable. The returned iterable
has an iterator that traverses the
elements of each iterable in inputs.
The input iterators are not polled
until necessary. The...
What are good uses for Python3's “Function Annotations”
...emselves invaluable for enabling smart static analyzers for languages like Java. For instance, you could define semantics like state restrictions, threads that are allowed to access, architecture limitations, etc., and there are quite a few tools that can then read these and process them to provide ...