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Non-static variable cannot be referenced from a static context
... class and an instance of that class. If you see a car on the street, you know immediately that it's a car even if you can't see which model or type. This is because you compare what you see with the class "car". The class contains which is similar to all cars. Think of it as a template or an idea.
...
@RunWith(MockitoJUnitRunner.class) vs MockitoAnnotations.initMocks(this)
..., but it's an invalid use of the framework because
// Mockito doesn't know what method call to verify. But Mockito can't report
// it yet, because the call to the method that's being verified might
// be yet to happen.
verify(myMock);
}
@Test
public void test3() {
// ERROR 2...
How do I set up NSZombieEnabled in Xcode 4?
...orting.
A typical case is when you over-release an object and you don't know which one:
With zombies: -[UITableView release]: message sent to deallocated instance
Without zombies:
This Xcode setting is ignored when you archive the application for App Store submission. You don't need to to...
What happens to C# Dictionary lookup if the key does not exist?
...corresponding value
}
else
{
// Key wasn't in dictionary; "value" is now 0
}
(Using ContainsKey and then the the indexer makes it look the key up twice, which is pretty pointless.)
Note that even if you were using reference types, checking for null wouldn't work - the indexer for Dictionary...
Difference between static STATIC_URL and STATIC_ROOT on Django
...es for deployment.
Example: STATIC_ROOT="/var/www/example.com/static/"
now the command ./manage.py collectstatic will copy all the static files(ie in static folder in your apps, static files in all paths) to the directory /var/www/example.com/static/. now you only need to serve this directory on...
What goes into the “Controller” in “MVC”?
...f data. Back to you, view."
View: "Cool, I'll show the new set to the user now."
In the end of that section, you have an option: either the view can make a separate request, "give me the most recent data set", and thus be more pure, or the controller implicitly returns the new data set with the "de...
Why is “using namespace std;” considered bad practice?
...thout problems. But one day you upgrade to a new version of Foo 2.0, which now offers a function called Quux(). Now you've got a conflict: Both Foo 2.0 and Bar import Quux() into your global namespace. This is going to take some effort to fix, especially if the function parameters happen to match.
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Getting a list of associative array keys
...
I'm switching this to the accepted answer now. Only IE8 doesn't support it anymore (for which a polyfill is available developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…)
– Simon_Weaver
Dec 11 '17 at 1:55
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How to format strings using printf() to get equal length in the output?
... of whatever length the two strings header1 and header2 may have.
I don't know if all implementations have the %n but Solaris and Linux do.
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Xcode iOS 8 Keyboard types not supported
I have a UITextField Ctrl-dragged as an @Outlet in my .swift class.
Now in viewDidLoad i'm using this code
10 Answe...