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How can I generate random alphanumeric strings?
...ouTube's video IDs are A-Z a-z 0-9, as well as "-" and "_", which produces 64 possible characters, which divides into 256 evenly. Coincidence? I think not! :)
– qJake
Sep 26 '16 at 18:25
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Why unsigned integer is not available in PostgreSQL?
... fit into long.
Another thing, if I did have the need to store 32 bit or 64 bit types, I can use PostgreSQL int4 or int8 respectively, just remembering that the natural order or arithmetic won't work reliably. But storing and retrieving is unaffected by that.
Here is how I can implement a simp...
Maximum number of threads in a .NET app?
...eads:
1023 in Framework 4.0 (32-bit environment)
32767 in Framework 4.0 (64-bit environment)
250 per core in Framework 3.5
25 per core in Framework 2.0
(These numbers may vary depending upon the hardware and OS)]
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PHP memory profiling
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zombatzombat
84.8k2121 gold badges148148 silver badges160160 bronze badges
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Why do Java webapps use .do extension? Where did it come from?
...to make yourself less of a target is a positive.
– XP84
Mar 3 '17 at 19:52
By default, the response headers would be e...
Android Hello-World compile error: Intellij cannot find aapt
... and executing aapt directly also says file not found, you may be having a 64-bit issue: link
– Tomas
Jun 2 '13 at 7:07
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rsync: difference between --size-only and --ignore-times
...on: https://www.andrew.cmu.edu/course/15-749/READINGS/required/cas/tridgell96.pdf. The wikipedia article on rsync is also very good.
For local files, rsync compares metadata and if it looks like it doesn't need to copy the file because size and timestamp match between source and destination it does...
How to pip or easy_install tkinter on Windows
...d say "This is Tcl/Tk version 8.5"; make sure it is not 8.4!
2) Uninstall 64-bit Python and install 32 bit Python.
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What is a “surrogate pair” in Java?
...a pair of surrogates 0xD834 0xDD1E (2 by 2 bytes),
in UTF-8 as 0xF0 0x9D 0x84 0x9E (4 by 1 byte),
in UTF-32 as 0x0001D11E (1 by 4 bytes).
Current situation
Although according to the standard the surrogates are specifically assigned only to UTF-16, historically some Windows and Java application...
When and why would you seal a class?
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On a class that implements security features, so that the original object cannot be "impersona...