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Using Regular Expressions to Extract a Value in Java
...ain and Jack suggest that you need to specify some subset of non-digits in order to capture digits. If you tell the regex engine you're looking for \d then it's going to ignore everything before the digits. If J or A's expression fits your pattern, then the whole match equals the input string. And t...
Factory pattern in C#: How to ensure an object instance can only be created by a factory class?
... make sure any instance of this class will have a valid internal state. In order to achieve this I will need to perform some check before creating an object, probably in its constructor. This is all okay until I decide I want to make this check be a part of the business logic. So, how can I arrange ...
Adding placeholder text to textbox
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Instead of handling the focus enter and focus leave events in order to set and remove the placeholder text it is possible to use the Windows SendMessage function to send EM_SETCUEBANNER message to our textbox to do the work for us.
This can be done with two easy steps. First we need t...
How to open, read, and write from serial port in C?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Is there a ceiling equivalent of // operator in Python?
...nline as well
((foo - 1) // bar) + 1
In python3, this is just shy of an order of magnitude faster than forcing the float division and calling ceil(), provided you care about the speed. Which you shouldn't, unless you've proven through usage that you need to.
>>> timeit.timeit("((5 - 1) ...
How do I delete an Azure storage account containing a leased blob?
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ditto @chdev77. I also had to go to the old portal in order for the disks to show up. Wow that was annoying as hell!
– harristrader
Mar 15 '16 at 20:12
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In Django - Model Inheritance - Does it allow you to override a parent model's attribute?
...erent type than a field with the same name in the abstract parent class in order to guarantee that all the subclasses all have a field with a certain name. utapyngo's code doesn't meet this need.
– Daniel
Jun 10 '15 at 17:02
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Android Eclipse - Could not find *.apk
...uilder" from my Builders for the project, building the project manually, reordering my java build path. I have no visible compiler issues and no problems exist in my workspace.
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Import SQL file into mysql
...ILE.
I copied my file mydb.sq to directory C: .It should be capital C: in order to run
and that's it.
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Is it possible to make an HTML anchor tag not clickable/linkable using CSS?
... to use a framework. Your reluctance in using any framework is ridiculous. PHP is written in C. Does that mean you should write C and not use PHP? iOS has UIKit, Core Data, Quartz, etc. Flash has tons of commonly used 3rd party libraries. Again, each framework has its purpose. A purist, not-built-in...