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How to solve “Fatal error: Class 'MySQLi' not found”?
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Sounds like you just need to install MySQLi.
If you think you've done that and still have a problem, please post your operating system and anything else that might help diagnose it further.
sh...
Printing HashMap In Java
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In your example, the type of the hashmap's key is TypeKey, but you specified TypeValue in your generic for-loop, so it cannot be compiled. You should change it to :
for (TypeKey name: example.keySet()){
String key = name.toString();
String value = example.get(name).toStr...
Is the 'override' keyword just a check for a overridden virtual method?
...ode compiles, but is not what you may have meant (note the missing const). If you said instead, virtual int foo() override, then you would get a compiler error that your function is not in fact overriding anything.
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Thread-safe List property
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If you are targetting .Net 4 there are a few options in System.Collections.Concurrent Namespace
You could use ConcurrentBag<T> in this case instead of List<T>
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Debugging “Element is not clickable at point” error
...jse = (JavascriptExecutor)driver;
jse.executeScript("scroll(250, 0)"); // if the element is on top.
jse.executeScript("scroll(0, 250)"); // if the element is on bottom.
or
JavascriptExecutor jse = (JavascriptExecutor)driver;
jse.executeScript("arguments[0].scrollIntoView()", Webelement);
Th...
How do I change column default value in PostgreSQL?
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"If ONLY is specified before the table name, only that table is altered. If ONLY is not specified, the table and all its descendant tables (if any) are altered" postgresql.org/docs/9.3/static/sql-altertable.html
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Environment variable to control java.io.tmpdir?
...t_temp_directory() functions return a static value of /tmp/.
I don't know if the actual JDK6 follows these exact conventions, but by the behavior on each of the listed platforms, it seems like they do.
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WPF: How to display an image at its original size?
...e image set in metadata. It took me quite a while before figuring out that if the image's DPI is different from the monitor's DPI (usually 96), WPF will automatically resize the image, as it tries to be DPI-independent.
EDIT
The MSDN link is broken, here is the new link:
MSDN Blog - Blurry Bitma...
Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
...ke sure that your object isn't still connected to the old property name... if it is, click the small 'x' to delete the reference and build again.
Another common cause if you are using Storyboard, your UIButton might have more then one assignings (Solution is almost the same as for nib):
Open ...
Removing a model in rails (reverse of “rails g model Title…”)
...del_name>
When you generate a model, it creates a database migration. If you run 'destroy' on that model, it will delete the migration file, but not the database table. So before run
bundle exec rake db:rollback
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