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Why doesn't Java allow generic subclasses of Throwable?
...in a process called type erasure. For example, List<Integer> will be converted to the non-generic type List.
Because of type erasure, type parameters cannot be determined at run-time.
Let's assume you are allowed to extend Throwable like this:
public class GenericException<T> extends ...
GUI not working after rewriting to MVC
...plicity.
A more common approach uses an EventListenerList, as shown in the Converter application and suggested by the large number of EventListener subinterfaces and implementing classes.
A third option is to use a PropertyChangeListener, as shown here and here.
Addendum: Some common questions abo...
How do I use WPF bindings with RelativeSource?
... the Width to be the half of the height then
you can do this by adding a converter to the Binding markup extension.
Let's imagine another case now:
<TextBlock Width="{Binding RelativeSource={RelativeSource Self},
Path=Parent.ActualWidth}"/>
The above case is used to ...
Working with select using AngularJS's ng-options
...ITLE), where Title value of Title property and TITLE is the same value but converted to uppercase characters.
ng-options="item.ID as item.Title + ' (' + (item.SomeDate | date) + ')' for item in items" gives you labels like Title (27 Sep 2015), if your model has a property SomeDate
...
How do I log ALL exceptions globally for a C# MVC4 WebAPI app?
...g exception of type HttpException which is obviously not the case with the Convert.ToInt32("a") code. So make sure that you log and handle all exceptions in there:
protected void Application_Error()
{
Exception unhandledException = Server.GetLastError();
HttpException httpException = unhand...
jquery's append not working with svg element?
...;/filter></defs></svg>. The textual representation is first converted to DOM using jQuery's $("body").append() method. And when the (filter) element is in DOM, it can be queried using standard jQuery methods and appended to the main SVG document which is created by Raphael.
Why this ...
The provider is not compatible with the version of Oracle client
...kage (also works for 11g):
The old / manual method:
For info on how to convert to using the managed libraries:
First, here is a great code comparison of managed vs unmanaged: http://docs.oracle.com/cd/E51173_01/win.122/e17732/intro005.htm#ODPNT148
Ensure you have downloaded the ODP.NET, Manage...
What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...
The MOC (meta object compiler) converts the Q_OBJECT macro included header files in to C++ equivalent source code.
It basically controls the signal-slot mechanism, and makes it understandable to the C++ compiler
...
What is the best way to implement nested dictionaries?
...sults are quite unreadable. The solution typically given is to recursively convert back to a dict for manual inspection. This non-trivial solution is left as an exercise for the reader.
Performance
Finally, let's look at performance. I'm subtracting the costs of instantiation.
>>> import ti...
How do you use the “WITH” clause in MySQL?
I am converting all my SQL Server queries to MySQL and my queries that have WITH in them are all failing. Here's an example:
...