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How do you test running time of VBA code?
...slow, you're going to need a very high-resolution timer. The most accurate one I know is QueryPerformanceCounter. Google it for more info. Try pushing the following into a class, call it CTimer say, then you can make an instance somewhere global and just call .StartCounter and .TimeElapsed
Option E...
Determine Whether Two Date Ranges Overlap
...EndA < StartB)
Then Overlap exists if Neither A Nor B is true -
(If one range is neither completely after the other,
nor completely before the other,
then they must overlap.)
Now one of De Morgan's laws says that:
Not (A Or B) <=> Not A And Not B
Which translates to: (Sta...
Difference between StringBuilder and StringBuffer
... and StringBuilder ?
Is there any performance issues when deciding on any one of these?
33 Answers
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Spring @Transaction method call by the method within the same class, does not work?
...simple and probably best alternative is to refactor your code. For example one class that handles users and one that process each user. Then default transaction handling with Spring AOP will work.
Configuration tips for handling transactions with AspectJ
To enable Spring to use AspectJ for transact...
Why does HTML5 form-validation allow emails without a dot?
... benefit from this out-of-box email validation. Facebook wouldn't let someone sign-up w/ an a@b address. Thanks for the info though. (I didn't downvote your answer)
– WEFX
Dec 13 '13 at 18:58
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What breaking changes are introduced in C++11?
I know that at least one of the changes in C++11 that will cause some old code to stop compiling: the introduction of explicit operator bool() in the standard library, replacing old instances of operator void*() . Granted, the code that this will break is probably code that should not have been v...
Ship an application with a database
...
There are two options for creating and updating databases.
One is to create a database externally, then place it in the assets folder of the project and then copy the entire database from there. This is much quicker if the database has a lot of tables and other components. Upgrades...
Fully custom validation error message with Rails
...ddress1 Put some address please
if you want to get the error message for one single attribute
<%= @model.errors[:address1] %>
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Unresolved specs during Gem::Specification.reset:
...pec on its own. From what I understand, this means that you have more than one version of the listed gems installed on your system, and RSpec is unsure which one to use. After uninstalling older version of the gems, the warnings went away.
You can try:
gem cleanup lumberjack
Or:
gem list lumber...
Android: How to bind spinner to custom object list?
...Spinner the usual way
Define 2 equal size arrays in your array.xml file -- one array for labels, one array for values
Set your Spinner with android:entries="@array/labels"
When you need a value, do something like this (no, you don't have to chain it):
String selectedVal = getResources().getStri...