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How do I remove repeated elements from ArrayList?
...n this up by using new HashSet(al) instead of initializing it to empty and calling addAll.
– ashes999
Dec 26 '13 at 12:44
1
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Google Docs/Drive - number the headings
...
If you want something more easy, there is a Google Add-On called "Table of Contents" that will allow you to number your headings.
To install this add-on:
Click on the Add-Ons > Get Add-Ons.
Click on the "Table of Contents" icon or search for this addon to install it
Th...
Java 8 Iterable.forEach() vs foreach loop
... now that lambdas are new. By "optimization" I do not mean the overhead of calling lambdas (which is small), but to the sophisticated analysis and transformation that the modern JIT compiler performs on running code.
If you do need parallelism, it is probably much faster and not much more difficul...
What is external linkage and internal linkage?
... max;
extern int n;
static float z = 0.0;
void f(int i)
{
static int nCall = 0;
int a;
//...
nCall++;
n++;
//...
a = max * z;
//...
cout << "f() called " << nCall << " times." << endl;
}
max is declared to have external linkage. A match...
How can I send an HTTP POST request to a server from Excel using VBA?
... I don't know if it's possible to return the results to the same cell that called the VBA function. In the example above, the result is written into A2.
Regarding input... If you want the results to refresh when you change certain cells, make sure those cells are the argument to your VBA function.
T...
Optimistic vs. Pessimistic locking
... locking but requires you to be careful with your application design to avoid Deadlocks. To use pessimistic locking you need either a direct connection to the database (as would typically be the case in a two tier client server application) or an externally available transaction ID that can be used...
TSQL - Cast string to integer or return default value
...erver 2005, 2008, or 2008 R2:
Create a user defined function. This will avoid the issues that Fedor Hajdu mentioned with regards to currency, fractional numbers, etc:
CREATE FUNCTION dbo.TryConvertInt(@Value varchar(18))
RETURNS int
AS
BEGIN
SET @Value = REPLACE(@Value, ',', '')
IF ISNUMERIC...
How to measure elapsed time in Python?
...indows, this function returns wall-clock seconds elapsed since the
first call to this function, as a floating point number, based on the
Win32 function QueryPerformanceCounter(). The resolution is typically
better than one microsecond.
Deprecated since version 3.3: The behaviour of this f...
Generate random numbers using C++11 random library
...m functions and why not to use rand(). In it, he included a slide that basically solves your question. I've copied the code from that slide below.
You can see his full talk here: http://channel9.msdn.com/Events/GoingNative/2013/rand-Considered-Harmful
#include <random>
#include <iostream&...
What is the difference between aggregation, composition and dependency? [duplicate]
...od" could be "Composition" as Blood Cells can not exist without the entity called Blood. "Blood" -> Body" could be "Aggregation" as Blood can exist without the entity called Body.
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