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If i synchronized two methods on the same class, can they run simultaneously?
... on the object instance that the method is called on before the thread can start executing any code in that method.
If you have two different instance methods marked synchronized and different threads are calling those methods concurrently on the same object, those threads will be contending for the...
When should you branch?
...ching, and when to use them:
Ned Batchelder - Subversion branching quick start
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disable maven download progress indication
...batch mode see https://maven.apache.org/ref/3.6.1/maven-embedder/cli.html
Starting with Maven 3.6.1 (released 2019-04-04) you can use --no-transfer-progress will suppress the output of downloading messages at all without suppressing the other output.
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What Regex would capture everything from ' mark to the end of a line?
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'.*$
Starting with a single quote ('), match any character (.) zero or more times (*) until the end of the line ($).
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Is List a subclass of List? Why are Java generics not implicitly polymorphic?
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@Ingo: I wouldn't have used that "certainly" to start with. If you have a list which says at the top "Hotels we might want to go to" and then someone added a swimming pool to it, would you think that valid? No - it's a list of hotels, which isn't a list of buildings. And i...
How to pretty print nested dictionaries?
...m not sure how exactly you want the formatting to look like, but you could start with a function like this:
def pretty(d, indent=0):
for key, value in d.items():
print('\t' * indent + str(key))
if isinstance(value, dict):
pretty(value, indent+1)
else:
print('\...
How does Trello access the user's clipboard?
...'s something to be put on the clipboard, and it
# looks like they're starting a copy shortcut
if !@value || !(e.ctrlKey || e.metaKey)
return
if $(e.target).is("input:visible,textarea:visible")
return
# Abort if it looks like they've selected some text (maybe...
In a Bash script, how can I exit the entire script if a certain condition occurs?
...lue. Usually a well written bash script will work if you add set -e at the start and the addition works as an automated sanity check: abort the script if anything goes wrong.
– Mikko Rantalainen
Aug 5 '13 at 12:04
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How to deal with a slow SecureRandom generator?
...ian:
apt-get install haveged
update-rc.d haveged defaults
service haveged start
On RHEL/CentOS:
yum install haveged
systemctl enable haveged
systemctl start haveged
Option 2. Reduce randomness requirements
If for some reason the solution above doesn't help or you don't care about cryptographi...
Print text instead of value from C enum
... Aw, you beat me to the array solution. :P But yes, enums always start at 0 unless you specify a different value.
– casablanca
Jul 2 '10 at 18:51
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