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Difference between decimal, float and double in .NET?
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2310
float and double are floating binary point types. In other words, they represent a number like...
How to count the number of set bits in a 32-bit integer?
...ou may need to adjust it to work for a particular language (e.g. using uint32_t for C++ and >>> in Java):
int numberOfSetBits(uint32_t i)
{
// Java: use int, and use >>> instead of >>
// C or C++: use uint32_t
i = i - ((i >> 1) & 0x55555555);
i =...
Python TypeError: not enough arguments for format string
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3 Answers
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Concatenating two lists - difference between '+=' and extend()
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edited May 13 '15 at 0:26
jesterjunk
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answered Se...
Rails 3 execute custom sql query without a model
...t that is supposed to deal with database. I used code given below in rails 3
5 Answers
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Concatenating two one-dimensional NumPy arrays
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388
The line should be:
numpy.concatenate([a,b])
The arrays you want to concatenate need to passe...
Can a variable number of arguments be passed to a function?
...anyArgs(1)
I was called with 1 arguments: (1,)
>>> manyArgs(1, 2, 3)
I was called with 3 arguments: (1, 2, 3)
As you can see, Python will unpack the arguments as a single tuple with all the arguments.
For keyword arguments you need to accept those as a separate actual argument, as shown ...
Length of an integer in Python
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341
If you want the length of an integer as in the number of digits in the integer, you can always...
proper hibernate annotation for byte[]
I have an application using hibernate 3.1 and JPA annotations. It has a few objects with byte[] attributes (1k - 200k in size). It uses the JPA @Lob annotation, and hibernate 3.1 can read these just fine on all major databases -- it seems to hide the JDBC Blob vendor peculiarities (as it should do...