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Should we @Override an interface's method implementation?
...prohibited the annotation, with 1.6 it doesn't. The annotation provides an extra compile-time check, so if you're using 1.6 I'd go for it.
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Saving a Numpy array as an image
...Works with matplotlib 1.3.1, I don't know about lower version. From the docstring:
Arguments:
*fname*:
A string containing a path to a filename, or a Python file-like object.
If *format* is *None* and *fname* is a string, the output
format is deduced from the extension of the filename...
Pass complex parameters to [Theory]
...s.
See i.e. these examples from here:
PropertyData Example
public class StringTests2
{
[Theory, PropertyData(nameof(SplitCountData))]
public void SplitCount(string input, int expectedCount)
{
var actualCount = input.Split(' ').Count();
Assert.Equal(expectedCount, actua...
android get all contacts
...get all the names of the contacts in my Android and put them into array of strings?
8 Answers
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What is “2's Complement”?
...hree
1100 to 1000 - negative four to negative eight
Note that you get one extra value for negatives (1000 = -8) that you don't for positives. This is because 0000 is used for zero. This can be considered as Number Line of computers.
Distinguishing between positive and negative numbers
Doing this, t...
Python list iterator behavior and next(iterator)
...; for i in a:
... print(i)
... _ = next(a)
...
0
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or print extra information to differentiate the print() output from the interactive interpreter echo:
>>> a = iter(list(range(10)))
>>> for i in a:
... print('Printing: {}'.format(i))
... next(a)
...
Printing...
What is the canonical way to determine commandline vs. http execution of a PHP script?
...example inspects the first 3 characters, whilst the description states the string should be exactly "cgi" but, other than that, I think this is perfect.
– Bobby Jack
Oct 6 '08 at 11:17
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Apply function to all elements of collection through LINQ [duplicate]
...n to execute this code when clicked: myEnumerable.AsParallel().ForAll(i as string => otherDictionary.Add(i, 0)) . It will add null as a key to otherDictionary. I had to rewrote to use foreach loop. Weird.
– YukiSakura
Dec 22 '15 at 8:13
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What is an idiomatic way of representing enums in Go?
...
A very simple way to create an object that starts to look and feel like a string enum in Python would be:
package main
import (
"fmt"
)
var Colors = newColorRegistry()
func newColorRegistry() *colorRegistry {
return &colorRegistry{
Red: "red",
Green: "green",
...
What are the “standard unambiguous date” formats for string-to-date conversion in R?
...
This is documented behavior. From ?as.Date:
format: A character string. If not specified, it will try
'"%Y-%m-%d"' then '"%Y/%m/%d"' on the first non-'NA' element,
and give an error if neither works.
as.Date("01 Jan 2000") yields an error because the format isn'...