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What is the difference between Strategy design pattern and State design pattern?
What are the differences between the Strategy design pattern and the State design pattern? I was going through quite a few articles on the web but could not make out the difference clearly.
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Using getopts to process long and short command line options
...er options.
BSD UNIX implementation of standalone getopt command (which is what MacOS uses). This does not support long options either.
GNU implementation of standalone getopt. GNU getopt(3) (used by the command-line getopt(1) on Linux) supports parsing long options.
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How to implement a Map with multiple keys? [duplicate]
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Er, yeah, this is exactly what you proposed. Two Maps is the way to go. To extend to an arbitrary number of keys, have a method like getByKey(MetaKey mk, Object k) and then a Map<MetaKey, Map<Object, V>> internally.
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Visual Studio hot keys change occasionally, specifically F6 vs Ctrl-Shift-B for building. WHY?
...fixed it, even though it was already set to C#2005. Now the question is - What makes it change? This has happened to me a lot over the years.
– TheSoftwareJedi
May 12 '09 at 20:02
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Twitter Bootstrap vs jQuery UI? [closed]
... structure. (calling a widget in JQUERY UI, defining it in Bootstrap)
So what to choose?
That always depends on the type of project you are working on. Is cool and fast looking widgets better, or are your users often using old browsers?
I always end up using both, so I can use the best of both ...
Convert seconds value to hours minutes seconds?
...ds);
You might want to pad each to make sure they're two digit values(or whatever) in the string, though.
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I have an error: setOnItemClickListener cannot be used with a spinner, what is wrong?
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What if we need to select an item again? This method will not work for the same selection.
– Eftekhari
Oct 10 '16 at 23:03
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Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
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The restorecon is what you need after you have copied the files by hand, e.g. to a new hard drive. (You should probably run it on all files in this case. Could fix other odd problems.)
– ospalh
Sep 24 '15...
How to find the JVM version from a program?
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System.getProperty("java.version") returns what you need.
You can also use JMX if you want:
ManagementFactory.getRuntimeMXBean().getVmVersion()
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No module named MySQLdb
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You need to use one of the following commands. Which one depends on what OS and software you have and use.
easy_install mysql-python (mix os)
pip install mysql-python (mix os/ python 2)
pip install mysqlclient (mix os/ python 3)
apt-get install python-mysqldb (Linux Ubuntu, ...)
cd /usr/por...