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What is the difference between public, protected, package-private and private in Java?
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The official tutorial may be of some use to you.
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| │ Class │ Package │ Subclass │ Subclass │ World |
| │ │ │(same pkg)│(diff pkg)│ |
|─────...
Find running median from a stream of integers
...t running median with O(lg n) updates where n is the window size'
def __init__(self, n, iterable):
self.it = iter(iterable)
self.queue = deque(islice(self.it, n))
self.skiplist = IndexableSkiplist(n)
for elem in self.queue:
self.skiplist.insert(elem)
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Finding a branch point with Git?
...rom the list, but this isn't the simplest way.
– Matt_G
Feb 9 '18 at 16:40
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Read a zipped file as a pandas DataFrame
... you want to read a zipped or a tar.gz file into pandas dataframe, the read_csv methods includes this particular implementation.
df = pd.read_csv('filename.zip')
Or the long form:
df = pd.read_csv('filename.zip', compression='zip', header=0, sep=',', quotechar='"')
Description of the compr...
How can strings be concatenated?
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The easiest way would be
Section = 'Sec_' + Section
But for efficiency, see: https://waymoot.org/home/python_string/
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find vs find_by vs where
...d are usually replaced with things like this:
Model.all
Model.first
find_by is used as a helper when you're searching for information within a column, and it maps to such with naming conventions. For instance, if you have a column named name in your database, you'd use the following syntax:
Mod...
Why does modern Perl avoid UTF-8 by default?
...???????????????????????????????????????????????????????????
Set your PERL_UNICODE envariable to AS. This makes all Perl scripts decode @ARGV as UTF‑8 strings, and sets the encoding of all three of stdin, stdout, and stderr to UTF‑8. Both these are global effects, not lexical ones.
At the top o...
Modifying the “Path to executable” of a windows service
...isplays output similar to:
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: ServiceName
TYPE : 10 WIN32_OWN_PROCESS
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Services\ServiceName
LOAD_ORDER_GROUP :
TAG ...
Can a C# lambda expression have more than one statement?
...ven without curly brackets:
Action<int, int> action = (x, y) => (_, _) = (X += x, Y += y);
and
Action<int, int> action = (x, y) => _ = (X += x, Y += y);
would be the same as:
Action<int, int> action = (x, y) => { X += x; Y += y; };
This also might be helpful if yo...
What does the C++ standard state the size of int, long type to be?
...ge. You can infer minimum size in bytes from that and the value of the CHAR_BIT macro that defines the number of bits in a byte. In all but the most obscure platforms it's 8, and it can't be less than 8.
One additional constraint for char is that its size is always 1 byte, or CHAR_BIT bits (hence th...