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Most efficient way to increment a Map value in Java
...od are significantly faster, in that only they give a performance boost of more than 10%. However, if threading is an issue, AtomicLong might be more attractive than the others (I'm not really sure). I also ran TestForNull with final variables, but the difference was negligible.
Note that I haven't...
Error java.lang.OutOfMemoryError: GC overhead limit exceeded
...r as follows: "It's just like an 'Out of Java Heap space' error. Give it more memory with -Xmx." ?
– Tim Cooper
Jun 19 '10 at 13:28
61
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Should we use Nexus or Artifactory for a Maven Repo?
...n a disk and only use a DB for storing metadata, it is quite flexible (see more here).
What makes those applications very different is their approach towards integration with other build tools and technologies. Nexus and Sonatype are pretty much locked on Maven and m2eclipse. They ignore anything e...
Android: Storing username and password?
...the frequency of asking for user
credentials -- to make phishing attacks more conspicuous, and less
likely to be successful. Instead use an authorization token and
refresh it.
Where possible, username and password should not be stored on the
device. Instead, perform initial authenticati...
Android: What is better - multiple activities or switching views manually?
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I would say that multiple Activities almost always makes more sense. I just don't think Android is designed for constantly switching its own views - you miss out on so much. You have to implement Back yourself, you don't get any inter-Activity transitions, you have to implement a...
Benefits of inline functions in C++?
... in the callee and so on. Thus, the following optimization is what matters more.
– Johannes Schaub - litb
Nov 10 '08 at 8:04
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Storing time-series data, relational or non?
...odelling Relational Databases may find the IDEF1X Notation helpful.
One More Thing
Last but not least, SQL is a IEC/ISO/ANSI Standard. The freeware is actually Non-SQL; it is fraudulent to use the term SQL if they do not provide the Standard. They may provide "extras", but they are absent the...
Firing events on CSS class changes in jQuery
...</div>
<button class="clickme">Click me</button>
More info on jQuery Triggers
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Bash history without line numbers
...mand was padding the line numbers with spaces and now the cut syntax makes more sense :) Thanks @Keith Thompson for your solution that will work for > 100k histories.
– cwd
Aug 18 '11 at 16:00
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How many levels of pointers can we have?
...t 256. (Readability recommends that you not exceed 2 or 3, and even then: more than one should be exceptional.)
– James Kanze
Apr 10 '12 at 10:52
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