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What does “atomic” mean in programming?
...;
Or to synchronize every access to the variable:
public synchronized void setFoo(long value) {
this.foo = value;
}
public synchronized long getFoo() {
return this.foo;
}
// no other use of foo outside of these two methods, unless also synchronized
Or to replace it with an AtomicLong:
...
Checking if output of a command contains a certain string in a shell script
...p;> /dev/null
if [ $? == 0 ]; then
echo "matched"
fi
which is done idiomatically like so:
if ./somecommand | grep -q 'string'; then
echo "matched"
fi
and also:
./somecommand | grep -q 'string' && echo 'matched'
...
What is a Memory Heap?
...at the heap is the portion of memory where dynamically allocated memory resides (i.e. memory allocated via malloc). Memory allocated from the heap will remain allocated until one of the following occurs:
The memory is free'd
The program terminates
If all references to allocated memory are lost ...
I want my android application to be only run in portrait mode?
I want my android application to be only run in portrait mode?
How can I do that?
6 Answers
...
How can Bash execute a command in a different directory context?
...ortant for running it correctly. The script affects the files that live inside the directory it is run within.
4 Answers
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Difference between path.normalize and path.resolve in Node.js
...
path.normalize gets rid of the extra ., .., etc. in the path. path.resolve resolves a path into an absolute path. Example (my current working directory was /Users/mtilley/src/testing):
> path.normalize('../../src/../src/node')
'../../src/node...
Difference between fmt.Println() and println() in Go
...ping section of the spec. From the link:
Current implementations provide several built-in functions useful
during bootstrapping. These functions are documented for completeness
but are not guaranteed to stay in the language. They do not return a
result.
Function Behavior
print p...
Semicolons superfluous at the end of a line in shell scripts?
...g. I found this link: unix.stackexchange.com/questions/53390/… I also did not know this before I actually had a problem with a some script that I wrote and was noted about the difference between ";" and "\n" by one of my colleague. Unfortunately, this was a long time ago and I can't remember wh...
How can I keep my branch up to date with master with git?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
How to create a hex dump of file containing only the hex characters without spaces in bash?
... od and hexdump commands both insert spaces in the dump and this is not ideal.
5 Answers
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