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python-pandas and databases like mysql
The documentation for Pandas has numerous examples of best practices for working with data stored in various formats.
13 An...
Why am I getting error for apple-touch-icon-precomposed.png
I have created a new rails3 project but I am seeing following logs many times in my server logs. Why I am getting these request and how can I avoid these?
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Is it possible to program iPhone in C++
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can you recommend a website or book that is aimed at experienced C++ programmers to learn Objective-C? I managed to mash a few test apps together, but I find the syntax a little backwards and I am sure that I am doing things that lead to ...
Submitting a form by pressing enter without a submit button
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Just tried this solution in IE7 with the same result as Erebus. The following code fixes it: position: absolute; width: 1px; height: 1px; left: -9999px;
– Bryan Downing
Nov 3 '10 at 1:01
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How to find the sum of an array of numbers
Given an array [1, 2, 3, 4] , how can I find the sum of its elements? (In this case, the sum would be 10 .)
43 Answers
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How to establish a connection pool in JDBC?
...tandalone connection pool, my preference goes to C3P0 over DBCP (that I've mentioned in this previous answer), I just had too much problems with DBCP under heavy load. Using C3P0 is dead simple. From the documentation:
ComboPooledDataSource cpds = new ComboPooledDataSource();
cpds.setDriverClass( "...
Common elements in two lists
...cts with three integers each. I want to find a way to return the common elements of the two lists. Has anybody an idea how I can achieve this?
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Change multiple files
...pens when there are too many files:
# grep -c aaa *
-bash: /bin/grep: Argument list too long
# for i in *; do grep -c aaa $i; done
0
... (output skipped)
#
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What's the shortest code to cause a stack overflow? [closed]
To commemorate the public launch of Stack Overflow, what's the shortest code to cause a stack overflow? Any language welcome.
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Gray out image with CSS?
...effect).
html:
<div id="wrapper">
<img id="myImage" src="something.jpg" />
</div>
css:
#myImage {
opacity: 0.4;
filter: alpha(opacity=40); /* msie */
}
/* or */
#wrapper {
opacity: 0.4;
filter: alpha(opacity=40); /* msie */
background-color: #000;
}
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