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ios simulator: how to close an app
When you "run" the simulator from xCode, the app automatically launches, and then you can click the home button to suspend the app. What I want to do is close the app from within the simulator. So, how can this be done?
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What is the difference between up-casting and down-casting with respect to class variable
...ves a type check and can throw a ClassCastException.
In your case, a cast from a Dog to an Animal is an upcast, because a Dog is-a Animal. In general, you can upcast whenever there is an is-a relationship between two classes.
Downcasting would be something like this:
Animal animal = new Dog();
Do...
Should I pass an std::function by const-reference?
...n the main thread.
In case (A), the std::function is directly constructed from our lambda, which is then used within the run_in_ui_thread. The lambda is moved into the std::function, so any movable state is efficiently carried into it.
In the second case, a temporary std::function is created, the...
A python class that acts like dict
...ant to write a custom class that behaves like dict - so, I am inheriting from dict .
9 Answers
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Syntax Error: Not a Chance
...races instead of indentation will never be implemented.
Normally, imports from the special __future__ module enable features that are backwards-incompatible, such as the print() function, or true division.
So the line from __future__ import braces is taken to mean you want to enable the 'create bl...
Find size of object instance in bytes in c#
...erializer wanted it, for "serializer" purposes. Those are likely different from the "sit-in-memory" purposes. Maybe serializer stores smaller integers in three bytes, for instance.
– John Saunders
Jul 14 '09 at 23:34
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Cookies vs. sessions
...ide.
It is preferred to use sessions because the actual values are hidden from the client, and you control when the data expires and becomes invalid. If it was all based on cookies, a user (or hacker) could manipulate their cookie data and then play requests to your site.
Edit: I don't think the...
Polymorphism with gson
... of command. Naturally I have polymorphism, and start/stop command inherit from command.
9 Answers
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How to add local jar files to a Maven project?
...re is removed, well, there are lots of good answers here which I can chose from later!
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How do you overcome the svn 'out of date' error?
I've been attempting move a directory structure from one location to another in Subversion, but I get an Item '*' is out of date commit error.
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