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Singleton with Arguments in Java
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I'll make my point very clear: a singleton with parameters is not a singleton.
A singleton, by definition, is an object you want to be instantiated no more than once. If you are trying to feed parameters to the constructor, what is the poi...
What's the algorithm to calculate aspect ratio?
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I gather you're looking for an usable aspect ratio integer:integer solution like 16:9 rather than a float:1 solution like 1.77778:1.
If so, what you need to do is find the greatest common divisor (GCD) and divide both values by that. The GCD is the highest number that evenly...
How are Anonymous inner classes used in Java?
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Or you could refactor duplicate anonymous inner classes into one method with the anonymous inner class (and possibly some other duplicated code).
– Tom Hawtin - tackline
Dec 14 '08 at 17:13
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If vs. Switch Speed
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They also convert to tree comparisons in some cases. The reasoning is somewhat complex but basically boils down to the table indirection neutering modern cpu jump target buffers and so wipes out the branch predictor. I vaguely recall...
How to append text to a text file in C++?
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You need to specify the append open mode like
#include <fstream>
int main() {
std::ofstream outfile;
outfile.open("test.txt", std::ios_base::app); // append instead of overwrite
outfile << "Data";
return 0;
}
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How to create index in Entity Framework 6.2 with code first
...nnotation API. This will allow you to add the Index attribute via a fluent interface.
Here are some examples from the work item from Issues site for EF.
Create a index on a single column:
modelBuilder.Entity<MyEntity>()
.Property(e => e.MyProperty)
.HasColumnAnnotation(
I...
When to use in vs ref vs out
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True, you cannot access the value prior to an internal assignment. I was referring to the fact that the parameter itself can be used later in the method - it is not locked. Whether this should actually be done or not is a different discussion (on design); I just wanted t...
NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...les and the stack.
void __declspec(dllexport) myFunction(HWND hwndParent, int string_size,
TCHAR *variables, stack_t **stacktop,
extra_parameters *extra)
{
g_hwndParent = hwndParent;
EXDLL_INIT();
//读取输入参数
WCHAR szComponent[256];
popstring(szComponent);
//打印...
Catch an exception thrown by an async void method
...decides to execute your method synchronously.
This explanation http://www.interact-sw.co.uk/iangblog/2010/11/01/csharp5-async-exceptions is pretty good - it discusses the steps the compiler takes to achieve this magic.
shar...
How can I resize an image using Java?
...an try:
BufferedImage createResizedCopy(Image originalImage,
int scaledWidth, int scaledHeight,
boolean preserveAlpha)
{
System.out.println("resizing...");
int imageType = preserveAlpha ? BufferedImage.TYPE_INT_RGB : BufferedImage.TYPE_INT_ARGB;
...