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Convert a string representation of a hex dump to a byte array using Java?
...didn't really understand - like omit some leading 0x00 and also mix up the order of 1 byte in a 156 byte string I was playing with.
– rafraf
Sep 26 '08 at 16:43
2
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What is “entropy and information gain”?
...de: first/last letter, length, number of vowels, does it end with a vowel, etc.. So after feature extraction, our data looks like:
# name ends-vowel num-vowels length gender
# ------------------------------------------------
Ashley 1 3 6 f
Brian 0 ...
How to detect user inactivity in Android
...ier). As for the onStop(), from what I remember, I call onBackPressed() in order to return to a login screen in the disconnect callback which in turn calls the onStop() method. When the user returns to the login screen manually, by pressing back, the timer needs to be stopped as well thus the stopDi...
String is immutable. What exactly is the meaning? [duplicate]
...riginal String "java".
Almost every method, applied to a String object in order to modify it, creates new String object. So, where do these String objects go? Well, these exist in memory, and one of the key goals of any programming language is to make efficient use of memory.
As applications grow,...
How do I add tab completion to the Python shell?
...e.py shell , I get an InteractiveConsole shell - I can use tab completion, etc.
9 Answers
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Why switch is faster than if
...tiguous (or mostly contiguous with no large gaps) (case 0: case 1: case 2, etc.), then TableSwitch is used.
If the offsets are spread out with large gaps (case 0: case 400: case 93748:, etc.), then LookupSwitch is used.
The difference, in short, is that TableSwitch is done in constant time because...
How do I calculate the date six months from the current date using the datetime Python module?
...tage of this approach is that it takes care of issues with 28, 30, 31 days etc. This becomes very useful in handling business rules and scenarios (say invoice generation etc.)
$ date(2010,12,31)+relativedelta(months=+1)
datetime.date(2011, 1, 31)
$ date(2010,12,31)+relativedelta(months=+2)
dat...
Test iOS app on device without apple developer program or jailbreak
... the app.
Prior to Xcode 7, a Program membership was indeed required in order to sign the provisioning certificates required to deploy apps to devices. The only other alternative was jailbreaking. With Xcode 7, you no longer need to jailbreak your device just to run apps distributed outside the A...
PostgreSQL database default location on Linux
...ostgresql/9.4/bin/postgres -D /var/lib/postgresql/9.4/main -c config_file=/etc/postgresql/9.4/main/postgresql.conf
so apparently /var/lib/postgresql/9.4/main.
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What is the Windows version of cron? [closed]
...-59)
2 Hour (2-24)
3 Day of month (1-31)
4 Month (1-12, Jan, Feb, etc)
5 Day of week (0-6) 0 = Sunday, 1 = Monday etc or Sun, Mon, etc)
6 User that the command will run as
7 Command to execute
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