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What is the correct way to create a single-instance WPF application?
...quire a dependency on the Microsoft.VisualBasic assembly. If my project already had a dependency on that assembly, I would probably advocate using the approach shown in another answer. But as it is, I do not use the Microsoft.VisualBasic assembly, and I'd rather not add an unnecessary dependency t...
Should I use Vagrant or Docker for creating an isolated environment? [closed]
...
In case someone reads these comments, you should know that Docker hit ver1.0 just 12 days ago (blog.docker.com/2014/06/its-here-docker-1-0) and a whole lot of different platforms are stable & supported now (docs.docker.com/installation)
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Salting Your Password: Best Practices?
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I've added a link to an old question, read those answers. Basically, by not using a different random salt per password you're taking an unnecessary security risk, that might be a real problem in the future.
– Georg Schölly
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Why does calling a method in my derived class call the base class method?
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Please read about polymorphism in C#: Polymorphism (C# Programming Guide)
This is an example from there:
When the new keyword is used, the new class members are called instead
of the base class members that have been replace...
What does the Java assert keyword do, and when should it be used?
...int id) {
Foo result = null;
if (id > 50) {
result = fooService.read(id);
} else {
result = new Foo(id);
}
assert result != null;
return result;
}
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Why / when would it be appropriate to override ToString?
... method be overridden.
DO override ToString whenever an interesting human-readable string can be returned. The default implementation is not very useful, and a custom implementation can almost always provide more value.
DO prefer a friendly name over a unique but not readable ID.
It is also wo...
Is there a way to detect if an image is blurry?
...nal image times that of the blurring filter. Thus, if the original image already had predominately low frequencies, how can you tell whether it was blurred?
– Chris A.
Oct 14 '11 at 14:16
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Timer function to provide time in nano seconds using C++
...drivers may result in these routines returning
different values as the thread moves from one processor to another...
However this StackOverflow answer https://stackoverflow.com/a/4588605/34329 states that QPC should work fine on any MS OS after Win XP service pack 2.
This article shows that Win...
What is a stack trace, and how can I use it to debug my application errors?
... in the application. Let's have a look at the stack trace:
Exception in thread "main" java.lang.NullPointerException
at com.example.myproject.Book.getTitle(Book.java:16)
at com.example.myproject.Author.getBookTitles(Author.java:25)
at com.example.myproject.Bootstrap.main(Boo...
The Web Application Project […] is configured to use IIS. The Web server […] could not be found.
... by going to the file system and manually editing the .csproj file. It was read-only, so I had to do a little dance, but it did work.
– Al Lelopath
Jun 13 '14 at 20:56
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