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How do I check if a given string is a legal/valid file name under Windows?
...nge across file systems, or across different versions of Windows. In other words, if you want know if Windows likes the name, hand it the name and let it tell you.
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Java: how do I get a class literal from a generic type?
... representation,
namely that of the corresponding raw
type . In other words, parameterized
types do not have type representation
of their own. Consequently, there is
no point in forming class literals
such as List<String>.class ,
List<Long>.class and List<?>.class
...
How to run Django's test database only in memory?
...
It has two benefits:
You don't have to check for test or any such magic word in sys.argv, test_settings.py can simply be
from settings import *
# make tests faster
SOUTH_TESTS_MIGRATE = False
DATABASES['default'] = {'ENGINE': 'django.db.backends.sqlite3'}
Or you can further tweak it for your...
When should I use a struct instead of a class?
...by the object will be freed as soon as it goes outside its scope. In other words it's less work for Garbage Collector and the memory is used more efficient.
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How to change column order in a table using sql query in sql server 2005?
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@Agent Lu The problem is the wording of the original question. Marc and I have interpreted the OP's question for 'change the order of the columns' differently. He makes a strong argument why column order is irrelevant in the stored table (names are thoug...
How to show math equations in general github's markdown(not github's blog)
...s compliant, fast, secure markdown processing library in C". The important word being "secure" there, considering your question :).
Indeed, allowing javascript to be executed would be a bit off of the MarkDown standard text-to-HTML contract.
Moreover, everything that looks like a HTML tag is eith...
Does have to be in the of an HTML document?
...ded in the head.
This remained the case (albeit expressed using different wording) until HTML 5, which introduced the (since removed) scoped attribute for style elements. This attribute, when present, was meant to allow a style element to be placed within an element in the body to style only that e...
What is the bit size of long on 64-bit Windows?
...------+-------
SHORT | S | 16 bit | 16 bit
USHORT, WORD | U | 16 bit | 16 bit
----------------------------+-----+--------+-------
INT, LONG | S | 32 bit | 32 bit
UINT, ULONG, DWORD | U | 32 bit | 32 bit
-------------------------...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...s().isAssignableFrom(Y.class) as “Can I write X x = new Y()”. In other words, instanceof operator checks if the left object is same or subclass of right class, while isAssignableFrom checks if we can assign object of the parameter class (from) to the reference of the class on which the method is...
git replace local version with remote version
...n you run "git status" the file appears as "Modified" and you say some bad words. You just want the old version back and continue to work normally.
In that scenario you can just run the following command:
git checkout -- path/filename
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