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Virtual/pure virtual explained
...ime the most-derived override of a method.
Consider the following code:
#include <iostream>
using namespace std;
class Base {
public:
void NonVirtual() {
cout << "Base NonVirtual called.\n";
}
virtual void Virtual() {
cout << "Base Virtual called.\n";...
How to set standard encoding in Visual Studio
...consistent coding
styles between different editors and IDEs.
This also includes file encoding.
EditorConfig is built-in Visual Studio 2017 by default, and I there were plugins available for versions as old as VS2012. Read more from EditorConfig Visual Studio Plugin page.
How
You can set up a ...
What is a serialVersionUID and why should I use it?
...
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What are the applications of binary trees?
...ervice in routers, and A* (path-finding algorithm used in AI applications, including robotics and video games). Also used in heap-sort.
Huffman Coding Tree (Chip Uni) - used in compression algorithms, such as those used by the .jpeg and .mp3 file-formats.
GGM Trees - Used in cryptographic applicati...
calculating the difference in months between two dates
...irst sentence in my answer indicates that it's variable. Any answer, yours included, is an approximation, simply because it is not a precise answer. Your "2 months" result can mean different things for different inputs, so it is an approximation.
– Adam Robinson
...
Android Crop Center of Bitmap
... correct. Your current version creates the correct starting point but then includes the remainder of the too long side. For instance given a 100x1000 image you get back a 100x550 image.
– Guvante
Mar 29 '13 at 19:38
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Convert LocalDate to LocalDateTime or java.sql.Timestamp
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Unit testing void methods?
...
Test its side-effects. This includes:
Does it throw any exceptions? (If it should, check that it does. If it shouldn't, try some corner cases which might if you're not careful - null arguments being the most obvious thing.)
Does it play nicely with it...
Sql Server equivalent of a COUNTIF aggregate function
...
Chris's answer is Stndard SQL compliant (hint: NULLIF is included Standard SQL-92). Josh's answer can be easily transformed into Standard SQL by replacing isnull with COALESCE.
– onedaywhen
Oct 31 '11 at 13:28
...
How to invoke the super constructor in Python?
...th the other answers, there are multiple ways to call super class methods (including the constructor), however in Python-3.x the process has been simplified:
Python-2.x
class A(object):
def __init__(self):
print "world"
class B(A):
def __init__(self):
print "hello"
super(B, self).__ini...