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Java synchronized method lock on object, or method?
...e on the whole object, so two thread accessing a different variable from this same object would block each other anyway.
If you want to synchronize only on one variable at a time, so two threads won't block each other while accessing different variables, you have synchronize on them separately in ...
Execution time of C program
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CLOCKS_PER_SEC is a constant which is declared in <time.h>. To get the CPU time used by a task within a C application, use:
clock_t begin = clock();
/* here, do your time-consuming job */
clock_t end = clock();
double time_spent = ...
How do you run a command for each line of a file?
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Read a file line by line and execute commands: 4 answers
This is because there is not only 1 answer...
shell command line expansion
xargs dedicated tool
while read with some remarks
while read -u using dedicated fd, for interactive processing (sample)
Regarding the OP request: ru...
How do you remove a specific revision in the git history?
Suppose your git history looks like this:
9 Answers
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Differences between C++ string == and compare()?
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This is what the standard has to say about operator==
21.4.8.2 operator==
template<class charT, class traits, class Allocator>
bool operator==(const basic_string<charT,traits,Allocator>& lhs,
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How to get the first item from an associative PHP array?
...rray:
$value = reset($array);
It also gives you FALSE in case the array is empty.
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How to join strings in Elixir?
How do I join two strings in a list with a space, like:
9 Answers
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Which version of C# am I using
...of(string).Assembly.ImageRuntimeVersion);
Getting version of C# compiler is somewhat harder, but you should be able to guess version by checking what framework version is used.
If you are using command line compiler (csc.exe) you can check help to see version (also you'd need to know Framework v...
Is it possible to use a div as content for Twitter's Popover
...tions to set the content for a Popover
Use the data-content attribute. This is the default option.
Use a custom JS function which returns the HTML content.
Using data-content:
You need to escape the HTML content, something like this:
<a class='danger' data-placement='above'
data-content=...
How do I seed a random class to avoid getting duplicate random values [duplicate]
...));
The sequence of random numbers generated by a single Random instance is supposed to be uniformly distributed. By creating a new Random instance for every random number in quick successions, you are likely to seed them with identical values and have them generate identical random numbers. Of co...