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Objective-C Static Class Level variables
...program exactly one time just before the class, or any class that inherits from it, is sent its first message from within the program. (Thus the method may never be invoked if the class is not used.)".
Feel free to use the static variable within any ClassA class/instance method.
Code sample:
file...
How do you make a deep copy of an object?
...or problems, and its use is discouraged in most cases. Please see Item 11, from "Effective Java" by Joshua Bloch for a complete answer. I believe you can safely use Object.clone() on primitive type arrays, but apart from that you need to be judicious about properly using and overriding clone.
The ...
Is there a method that works like start fragment for result?
...
Additionally when loading one fragment from another you can set the target fragment and call back to the parent fragment's onActivityResult method if you so wish.
– PJL
Jul 19 '11 at 19:51
...
How do I configure git to ignore some files locally?
...
From the relevant Git documentation:
Patterns which are specific to a particular repository but which do not need to be shared with other related repositories (e.g., auxiliary files that live inside the repository but are...
Are parallel calls to send/recv on the same socket valid?
...e talking about POSIX send/recv then yes, you can call them simultaneously from multiple threads and things will work.
This doesn't necessarily mean that they'll be executed in parallel -- in the case of multiple sends, the second will likely block until the first completes. You probably won't not...
Volatile Vs Atomic [duplicate]
...
In this particular case it is possible, as in from the local perspective of the Thread there is no problem in doing that. So if it is convenient for the CPU (i.E. batch-writing of memory), reordering in that way is very much possible.
– TwoThe
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Cleaner way to do a null check in C#? [duplicate]
...aintainable code. It tells programmers not to access anything too far away from the immediate scope. For example, suppose I have this code:
public interface BusinessData {
public decimal Money { get; set; }
}
public class BusinessCalculator : ICalculator {
public BusinessData CalculateMoney() ...
What is the canonical way to determine commandline vs. http execution of a PHP script?
... cli-mode
} else {
// Not in cli-mode
}
Here are some relevant notes from the docs:
php_sapi_name — Returns the type of interface between web server and PHP
Although not exhaustive, the possible return values include aolserver, apache, apache2filter, apache2handler, caudium, cgi (un...
Reuse Cucumber steps
...od described below has been deprecated. The recommended way to call a step from within another step now looks like this:
Given /^I login successfully$/
step "I login with valid credentials"
end
Old, deprecated method (for reference):
You can call steps from other steps like this:
Given ...
How can you find the height of text on an HTML canvas?
...of this working, I used this technique in the Carota editor.
Following on from ellisbben's answer, here is an enhanced version to get the ascent and descent from the baseline, i.e. same as tmAscent and tmDescent returned by Win32's GetTextMetric API. This is needed if you want to do a word-wrapped ...