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Difference between java.util.Random and java.security.SecureRandom
...l purposes. This also means that your random numbers are predictable right now, something you don't want for session IDs and the like.
How to break a Linear Congruential Generator
The assumption that an attacker would have to wait for the LCG to repeat after a full cycle is wrong. Even with an opt...
Nested or Inner Class in PHP
...(method_exists($this, $method)) {
/* The method exists so now we want to know if the
* caller is a child of our Package class. If not we throw an exception
* Note: This is a kind of a dirty way of finding out who's
* calling the me...
pip installing in global site-packages instead of virtualenv
...anged it, activated the virtualenv and installed the Markdown package. Pip now installs in the virtualenv site-packages folder instead of the global one.
– ƘɌỈSƬƠƑ
Jan 6 '14 at 22:45
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How to turn on (literally) ALL of GCC's warnings?
...ike it, I turn off that warning specifically. The point is that you don't know about warnings that don't trigger, but you do know about warnings you don't want that do trigger, and they are easily turned off.
– David Stone
May 25 '14 at 3:34
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Should I put input elements inside a label element?
... contained within a label element that contains the label text." I don't know if that was added in the years since @Sorcy commented, but the input-in-label scenario is considered valid now.
– Alex Weitzer
Aug 14 '14 at 21:29
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How to set selected item of Spinner by value, not by position?
...
I know this is very old, but this now throws an unchecked call to getPosition(T)
– Brad Bass
Oct 2 '14 at 12:40
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How do I use Assert.Throws to assert the type of the exception?
...l fail. However if an exception of the correct type is thrown then you can now assert on the actual exception that you've saved in the variable.
By using this pattern you can assert on other things than the exception message, e.g. in the case of ArgumentException and derivatives, you can assert tha...
Understanding dict.copy() - shallow or deep?
...mple:
original = dict(a=1, b=2, c=dict(d=4, e=5))
new = original.copy()
Now let's change a value in the 'shallow' (first) level:
new['a'] = 10
# new = {'a': 10, 'b': 2, 'c': {'d': 4, 'e': 5}}
# original = {'a': 1, 'b': 2, 'c': {'d': 4, 'e': 5}}
# no change in original, since ['a'] is an immutabl...
encryption/decryption with multiple keys
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Ditto. It be cool to know how to do that, but I can't find hide no man page on it.
– MarkusQ
Feb 28 '09 at 2:49
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Pointers in C: when to use the ampersand and the asterisk?
I'm just starting out with pointers, and I'm slightly confused. I know & means the address of a variable and that * can be used in front of a pointer variable to get the value of the object that is pointed to by the pointer. But things work differently when you're working with arrays, string...