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What does value & 0xff do in Java?
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From http://www.coderanch.com/t/236675/java-programmer-SCJP/certification/xff
The hex literal 0xFF is an equal int(255). Java represents int as 32 bits. It look like this in binary:
00000000 00000000 00000000 11111111
When you do a b...
Most common way of writing a HTML table with vertical headers?
...y your headings will also be interpreted right on screen readers.
https://www.w3.org/WAI/tutorials/tables/one-header/#table-with-header-cells-in-the-first-column-only
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What do the python file extensions, .pyc .pyd .pyo stand for?
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Also for some further discussion on .pyc vs .pyo, take a look at: http://www.network-theory.co.uk/docs/pytut/CompiledPythonfiles.html (I've copied the important part below)
When the Python interpreter is invoked with the -O flag, optimized code is generated and stored in ‘.pyo’ files. T...
How to use WinForms progress bar?
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Hey there's a useful tutorial on Dot Net pearls: http://www.dotnetperls.com/progressbar
In agreement with Peter, you need to use some amount of threading or the program will just hang, somewhat defeating the purpose.
Example that uses ProgressBar and BackgroundWorker: C#
using ...
How to use > in an xargs command?
...n example and that you may need > for other things. GNU Parallel http://www.gnu.org/software/parallel/ may be your rescue. It does not need additional quoting as long as your filenames do not contain \n:
ls | parallel "grep ABC {} > {}.out"
If you have filenames with \n in it:
find . -prin...
'typeid' versus 'typeof' in C++
...nformation about the runtime type of the value.
typeof Reference: http://www.delorie.com/gnu/docs/gcc/gcc_36.html
typeid Reference: https://en.wikipedia.org/wiki/Typeid
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What exactly does stringstream do?
...m trying to learn C++ since yesterday and I am using this document: http://www.cplusplus.com/files/tutorial.pdf (page 32) . I found a code in the document and I ran it. I tried inputting Rs 5.5 for price and an integer for quantity and the output was 0.
I tried inputting 5.5 and 6 and the output wa...
Ways to save Backbone.js model data?
...enerate model IDs with Backbone
On REST:
http://rest.elkstein.org/
http://www.infoq.com/articles/rest-introduction
http://www.recessframework.org/page/towards-restful-php-5-basic-tips
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Binary Data in MySQL [closed]
...files into
// an sql database. More information can be found at http://www.phpbuilder.com/
?>
<html>
<head><title>Store binary data into SQL Database</title></head>
<body>
<?php
// Code that will be executed if the form has ...
How can I decompress a gzip stream with zlib?
...gzip format, use wbits = zlib.MAX_WBITS | 16
See documentation in http://www.zlib.net/manual.html#Advanced (section inflateInit2)
examples
test data:
>>> deflate_compress = zlib.compressobj(9, zlib.DEFLATED, -zlib.MAX_WBITS)
>>> zlib_compress = zlib.compressobj(9, zlib.DEFLATE...