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Why does this (null || !TryParse) conditional result in “use of unassigned local variable”?
... sure this is a compiler bug. Nice find!
Edit: it is not a bug, as Quartermeister demonstrates; dynamic might implement a weird true operator which might cause y to never be initialized.
Here's a minimal repro:
class Program
{
static bool M(out int x)
{
x = 123;
return ...
What are detached, persistent and transient objects in hibernate?
...idered transient by Hibernate:
Person person = new Person();
person.setName("Foobar");
// person is in a transient state
A persistent instance has a representation in the database, an identifier value and is associated with a Session. You can make a transient instance persistent by associating i...
JavaFX and OpenJDK
...e using the Oracle JRE, which has JavaFX integrated these days. However, some are using OpenJDK (on linux). This (old) question suggests that OpenJDK deals very badly with JavaFX. According to this question, the alternative OpenJFX will only be fully integrated into OpenJDK in version 9. So my q...
Convert Django Model object to dict with all of the fields intact
...go.db.models.base.ModelState at 0x7ff0993f6908>,
'auto_now_add': datetime.datetime(2018, 12, 20, 21, 34, 29, 494827, tzinfo=<UTC>),
'foreign_key_id': 2,
'id': 1,
'normal_value': 1,
'readonly_value': 2}
This is by far the simplest, but is missing many_to_many, foreign_key is misnamed,...
How does Git handle symbolic links?
...to) in a 'blob' just like it would for a normal file. It then stores the name, mode and type (including the fact that it is a symlink) in the tree object that represents its containing directory.
When you checkout a tree containing the link, it restores the object as a symlink regardless of whether...
What is the difference between “px”, “dip”, “dp” and “sp”?
What is the difference between Android units of measure?
33 Answers
33
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Simulator or Emulator? What is the difference?
While I understand what simulation and emulation mean in general, I almost always get confused about them. Assume that I create a piece of software that mimics existing hardware/software, what should I call it? A simulator or an emulator?
...
What are the disadvantages to declaring Scala case classes?
...
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Best practice: AsyncTask during orientation change
...urationInstance() either. This is less modular and not well-suited for Fragment-based applications.
You can read my article describing how to handle configuration changes using retained Fragments. It solves the problem of retaining an AsyncTask across a rotation change nicely. You basically need to...
Do HttpClient and HttpClientHandler have to be disposed between requests?
...em.Net.Http.HttpClient and System.Net.Http.HttpClientHandler in .NET Framework 4.5 implement IDisposable (via System.Net.Http.HttpMessageInvoker ).
...