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What is the facade design pattern?
...oblem in the best possible way.
The Facade design pattern simplifies the interface to a complex system; because it is usually composed of all the classes which make up the subsystems of the complex system.
A Facade shields the user from the complex details of the system and provides them with a ...
Java: Get first item from a collection
...Great question... At first, it seems like an oversight for the Collection interface.
Note that "first" won't always return the first thing you put in the collection, and may only make sense for ordered collections. Maybe that is why there isn't a get(item) call, since the order isn't necessarily ...
Is there an easy way to pickle a python function (or otherwise serialize its code)?
...odule can be used to serialise code objects, which can then be reassembled into a function. ie:
import marshal
def foo(x): return x*x
code_string = marshal.dumps(foo.func_code)
Then in the remote process (after transferring code_string):
import marshal, types
code = marshal.loads(code_string)
...
Best data type to store money values in MySQL
... one.
Which data type do I have to use for this purpose?
VARCHAR or INT (or other numeric data types)?
12 Answers
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What is the proper way to format a multi-line dict in Python?
...
}
Similarly, here's my preferred way of including large strings without introducing any whitespace (like you'd get if you used triple-quoted multi-line strings):
data = (
"iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABG"
"l0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAEN"
"xBRpFY...
Fastest way to find second (third…) highest/lowest value in vector or column
...)[2] as described in @Abrar's answer, apart from not satisfying the constraint in the question?
– Hugh
Jun 26 '13 at 3:29
5
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Switch statement fall-through…should it be allowed? [closed]
...entering my consciousness as a possible way to do things as it was drilled into my head early on that it was nothing more than a bug in the switch statement. However, today I ran across some code that uses it by design, which got me immediately wondering what everyone in the community thinks about s...
What represents a double in sql server?
...ver type is for when you want exact decimal numbers rather than floating point (which can be approximations). This is in contrast to the C# "decimal" data type, which is more like a 128-bit floating point number.
MSSQL's float type is equivalent to the 64-bit double type in .NET. (My original answe...
How do I check for C++11 support?
...support C++14 and other. Testing on GCC 5.2.1.
#include <iostream>
int main(){
#if __cplusplus==201402L
std::cout << "C++14" << std::endl;
#elif __cplusplus==201103L
std::cout << "C++11" << std::endl;
#else
std::cout <...
How to sort a HashMap in Java [duplicate]
...
Do you have to use a HashMap? If you only need the Map Interface use a TreeMap
If you want to sort by comparing values in the HashMap. You have to write code to do this, if you want to do it once you can sort the values of your HashMap:
Map<String, Person> people = new ...