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Handler vs AsyncTask
...much about the low-level details(threads, message loops etc). It provides callback methods that help to schedule tasks and also to easily update the UI whenever required.
However, it is important to note that when using AsyncTask, a developer is submitting to its limitations, which resulted becaus...
R script line numbers at error?
...ou the line number, but it will tell you where the failure happens in the call stack which is very helpful:
traceback()
[Edit:] When running a script from the command line you will have to skip one or two calls, see traceback() for interactive and non-interactive R sessions
I'm not aware of anot...
new Date() works differently in Chrome and Firefox
...n first attempts to parse the format of the String according to the rules called out in Date Time String Format (15.9.1.15). If the String does not conform to that format the function may fall back to any implementation-specific heuristics or implementation-specific date formats.
To make the Date ...
Change default text in input type=“file”?
...man.com/archive/2007/09/10/styling_file_inputs_with_css_and_the_dom
Personally, because most users stick to their browser of choice, and therefore are probably used to seeing the control in the default rendition, they'd probably get confused if they saw something different (depending on the types o...
Does it make sense to do “try-finally” without “catch”?
...you want the currently executing method to still throw the exception while allowing resources to be cleaned up appropriately. Below is a concrete example of handling the exception from a calling method.
public void yourOtherMethod() {
try {
yourMethod();
} catch (YourException ex) {...
How can I set the Sender's address in Jenkins?
I'm sending mail from Jenkins to an anonymous SMTP relay internally. That relay then securely sends mail to exchange online via TLS on port 587. The transport works perfectly, the issue is that Microsoft requires the Sender address match the authentication credentials login name which is the same as...
How to convert a color integer to a hex String in Android?
...l. By using a bit wise AND operation with the value 0x00FFFFFF, you essentially clears the leftest byte (alpha channel) to 0. When used with Integer.toHexString, it'll just leave the rest of the 3 bytes in String. All non-significant digits will be dropped from the call, so if you want the leading...
Exit a Script On Error
... If you like the ABS, you'll love the BashGuide, BashFAQ and BashPitfalls.
– Paused until further notice.
Dec 8 '10 at 4:45
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Is there a “standard” format for command line/shell help text?
If not, is there a de facto standard? Basically I'm writing a command line help text like so:
8 Answers
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Delete specific line number(s) from a text file using sed?
...
Not all unixes have gnu sed with "-i". Don't make the mistake of falling back to "sed cmd file > file", which will wipe out your file.
– pra
Jan 22 '10 at 6:53
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