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How to get VM arguments from inside of Java application?
... answered Oct 7 '09 at 14:32
David SchulerDavid Schuler
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Effect of a Bitwise Operator on a Boolean in Java
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If the above is true, why is ideone.com/oGSF7c throwing a null pointer exception? If the |= operator was logical, the program should never have run the x.getValue() directive.
– ikromm
Feb 5 '15 at 12:34
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Extract substring using regexp in plain bash
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Thanks for the detailed explanation, helps to avoid future "how do I regexp XXXX" posts.
– studgeek
Feb 8 '17 at 20:23
4
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Grepping a huge file (80GB) any way to speed it up?
...from the following filename. Similar to cat file.sql | parallel ... but avoids a UUOC. GNU parallel also has a way to read input from a file using parallel ... :::: file.sql. HTH.
– Steve
Oct 21 '19 at 21:26
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Iterate over the lines of a string
...t with other functions').
But the split-based approach still rules.
An aside: possibly better style for f4 would be:
from cStringIO import StringIO
def f4(foo=foo):
stri = StringIO(foo)
while True:
nl = stri.readline()
if nl == '': break
yield nl.strip('\n')
at ...
Yes/No message box using QMessageBox
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You would use QMessageBox::question for that.
Example in a hypothetical widget's slot:
#include <QApplication>
#include <QMessageBox>
#include <QDebug>
// ...
void MyWidget::someSlot() {
QMessageBox::StandardButton reply;
reply = QMessageBox::question(this, "Test", "Quit?"...
How do I break out of a loop in Perl?
...n experimental keyword in >5.010 right? so you might get an illegal outside given block error, not that you should use it. The only way that would even work is if you used a while loop inside a given block, and then break, which in theory would work the way you wanted IF (and only if) the given b...
git pull keeping local changes
... that git checkout --theirs command is very confusing. It did what I wanted once and something really bad another time. Got any good documentation on it?
– Milimetric
Sep 19 '13 at 15:00
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
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why isn't the declared PK considered as a unique constraint ? it's not like you can have a nonunique PK...
– amphibient
Sep 7 '16 at 18:14
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How to hide command output in Bash
I want to make my Bash scripts more elegant for the end user. How do I hide the output when Bash is executing commands?
7 A...