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In what order do static/instance initializer blocks in Java run?
... type T will be initialized immediately before the first occurrence of any one of the following:
T is a class and an instance of T is created.
T is a class and a static method declared by T is invoked.
A static field declared by T is assigned.
A static field declared by T is used and the field is ...
What is the Difference Between read() and recv() , and Between send() and write()?
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This is incorrect, there's one other difference in case of datagrams of 0 length - If a zero-length datagram is pending, read(2) and recv() with a flags argument of zero provide different behavior. In this circumstance, read(2) has...
Python truncate a long string
How does one truncate a string to 75 characters in Python?
17 Answers
17
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What is a clean, pythonic way to have multiple constructors in Python?
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Actually None is much better for "magic" values:
class Cheese():
def __init__(self, num_holes = None):
if num_holes is None:
...
Now if you want complete freedom of adding more parameters:
class Cheese():
...
Waiting until two async blocks are executed before starting another block
When using GCD, we want to wait until two async blocks are executed and done before moving on to the next steps of execution. What is the best way to do that?
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How to calculate a Mod b in Casio fx-991ES calculator
Does anyone know how to calculate a Mod b in Casio fx-991ES Calculator. Thanks
10 Answers
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How do I test if a variable is a number in Bash?
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One approach is to use a regular expression, like so:
re='^[0-9]+$'
if ! [[ $yournumber =~ $re ]] ; then
echo "error: Not a number" >&2; exit 1
fi
If the value is not necessarily an integer, consider amending the...
What REALLY happens when you don't free after malloc?
...lushed, or if they're a temp file, they might not get deleted when you're done. Also, database handles should have their transactions committed and then closed when you're done with them. Similarly, if you're using an object oriented language like C++ or Objective C, not freeing an object when you...
Find UNC path of a network drive?
...ath Copy, which is free and you can practically get any path you want with one click:
https://pathcopycopy.github.io/
Here is a screenshot demonstrating how it works. The latest version has more options and definitely UNC Path too:
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iPhone: Detecting user inactivity/idle time since last screen touch
...t exception 'NSInternalInconsistencyException', reason: 'There can only be one UIApplication instance.'".. is anything else i need to do...?
– Mihir Mehta
Jun 23 '10 at 6:42
7
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