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How does the “final” keyword in Java work? (I can still modify an object.)
In Java we use final keyword with variables to specify its values are not to be changed.
But I see that you can change the value in the constructor / methods of the class. Again, if the variable is static then it is a compilation error.
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Semaphore vs. Monitors - what's the difference?
...tor object will enforce mutual exclusion, so only one thread may be performing any action on the object at a given time. If one thread is currently executing a member function of the object then any other thread that tries to call a member function of that object will have to wait until the first ha...
Is it worthwile to learn assembly language? [closed]
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I learned from Kip Irvine's book. If you ignore the (fair) criticisms of his (irrelevant) libraries, I can recommend it as a good introduction to the language itself -- although for the really interesting stuff you have to hunt out obsessives on t...
How to redirect to a different domain using NGINX?
How can I redirect mydomain.com and any subdomain *.mydomain.com to www.adifferentdomain.com using NGINX?
7 Answers
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Running single test from unittest.TestCase via command line
In our team, we define most test cases like this:
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sed command with -i option (in-place editing) works fine on Ubuntu but not Mac [duplicate]
I know nothing about Sed but need this command (which works fine on Ubuntu) to work on a Mac OSX:
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How does the vim “write with sudo” trick work?
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In :w !sudo tee %...
% means "the current file"
As eugene y pointed out, % does indeed mean "the current file name", which is passed to tee so that it knows which file to overwrite.
(In substitution commands, it's slightly...
Cosmic Rays: what is the probability they will affect a program?
Once again I was in a design review, and encountered the claim that the probability of a particular scenario was "less than the risk of cosmic rays" affecting the program, and it occurred to me that I didn't have the faintest idea what that probability is.
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How to suppress Update Links warning?
I'm trying to write a script that opens many Excel files. I keep getting the prompt:
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Is there a “standard” format for command line/shell help text?
If not, is there a de facto standard? Basically I'm writing a command line help text like so:
8 Answers
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