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Java heap terminology: young, old and permanent generations?
... , old and permanent generations are in the Java heap terminology, and more specifically the interactions between the three generations.
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Difference between viewDidLoad and viewDidAppear
.../a/3411636/269753 I have been observing my viewDidLoad method being called more than just once, even when not receiving memory warnings at all. Anyone wants to clarify?
– Ricardo Sanchez-Saez
Apr 5 '13 at 10:48
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Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
... that out. In fact, now that I think about it, it probably would have made more sense for me to give an example from the standpoint of a client, rather than the programmer himself. In both cases, using List list = new ArrayList() is a matter of ensuring that you don't break existing code.
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Real escape string and PDO [duplicate]
...re will NOT prevent against SQL injection. I'm not sure what to believe anymore. Are you certain that prepare will stop injection attacks?
– John
Sep 15 '10 at 9:39
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How do I request a file but not save it with Wget? [closed]
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Difference between DTO, VO, POJO, JavaBeans?
...lexity of Enterprise JavaBeans).
As designs using POJOs have become
more commonly-used, systems have
arisen that give POJOs some of the
functionality used in frameworks and
more choice about which areas of
functionality are actually needed.
Hibernate and Spring are examples.
Value...
Indenting #defines
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I don't know why it's not more common. There are certainly times when I like to indent preprocessor directives.
One thing that keeps getting in my way (and sometimes convinces me to stop trying) is that many or most editors/IDEs will throw the direc...
Define a lambda expression that raises an Exception
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There is more than one way to skin a Python:
y = lambda: (_ for _ in ()).throw(Exception('foobar'))
Lambdas accept statements. Since raise ex is a statement, you could write a general purpose raiser:
def raise_(ex):
raise ex...
How to search a specific value in all tables (PostgreSQL)?
... If you want to grep text data (which is typically encoded in more recent versions of postgres), you may need to ALTER DATABASE your_db_name SET bytea_output = 'escape'; on the database (or a copy thereof) before dumping it. (I'm not seeing a way to specify this just for a pg_dump comma...