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How can I create tests in Android Studio?
...yClass {
public int add(int a, int b) {
return a + b;
}
}
Now change the addition_isCorrect() method in the test class to be like the following code (or just add another method with a different name):
public class ExampleUnitTest {
@Test
public void addition_isCorrect() thro...
Do asynchronous operations in ASP.NET MVC use a thread from ThreadPool on .NET 4
... end of the request execution, the thread is returned to the thread pool.
Now let's take an example of the asynchronous pattern:
public void IndexAsync()
{
// perform some processing
}
public ActionResult IndexCompleted(object result)
{
return View();
}
When a request is sent to the Ind...
Why should I declare a virtual destructor for an abstract class in C++?
I know it is a good practice to declare virtual destructors for base classes in C++, but is it always important to declare virtual destructors even for abstract classes that function as interfaces? Please provide some reasons and examples why.
...
How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
...sk RVM to list the ruby versions available to install by running rvm list known.
In the output you should now see:
# MRI Rubies
...
[ruby-]1.9.2[-p320]
...
The square brackets around the patch level indicate that this is currently RVM's default patch level for ruby 1.9.2.
Finally, to install th...
Send a pull request on GitHub for only latest commit
.... The pull request UI on github.com shows the last 9 commits and I don't know how to filter that down.
7 Answers
...
Null coalescing in powershell
... evaluated
Null Conditional Assignment
$x = $null
$x ??= 100 # $x is now 100
$x ??= 200 # $x remains 100
Ternary Operator
$true ? "this value returned" : "this expression not evaluated"
$false ? "this expression not evaluated" : "this value returned"
Previous Versions:
No need for ...
How to profile methods in Scala?
...noTime()
println("Elapsed time: " + (t1 - t0) + "ns")
result
}
// Now wrap your method calls, for example change this...
val result = 1 to 1000 sum
// ... into this
val result = time { 1 to 1000 sum }
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...
How to build Qt for Visual Studio 2010
...7: the latest Qt 4.x branch (Qt 4.8.6) has 2 pre-built packages, which are now in the archive section:
http://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-windows-x86-vs2010-4.8.6.exe
http://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-windows-x86-vs2008-4.8.6.exe
You should not downlo...
How can I make XSLT work in chrome?
...r containing a web page as an attachment, which you download.
You open the now-local web page in your browser.
The local web page creates an <iframe> whose source is https://mail.google.com/mail/.
Because you are logged in to Gmail, the frame loads the messages in your inbox.
The local web pag...
How to install Google Play Services in a Genymotion VM (with no drag and drop support)?
...gle Play Services. Once the new Google Play Services is installed you will now have stable, working access to Google Play
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