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Android: How to put an Enum in a Bundle?
...e.name() and restore it from YourEnums.valueOf(s), as otherwise the enum's ordering must be preserved!
Longer explanation: Convert from enum ordinal to enum type
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Why this line xmlns:android=“http://schemas.android.com/apk/res/android” must be the first in the la
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This is just the XML Name Space declaration. We use this Name Space in order to specify that the attributes listed below, belongs to Android. Thus they starts with "android:"
You can actually create your own custom attributes. So to prevent the name conflicts where 2 attributes are named the sa...
How to detect a Christmas Tree? [closed]
... is either less than 0.2 on a 0.0-1.0 scale (corresponding roughly to the border between yellow and green) or greater than 0.95 (corresponding to the border between purple and red) and additionally I require bright, saturated colors: saturation and value must both be above 0.7. The results of the t...
How do I obtain the frequencies of each value in an FFT?
...t at N-k since for real data, FFT[N-k] = complex conjugate of FFT[k].
The order of scanning from LOW to HIGH frequency is
0,
1,
N-1,
2,
N-2
...
[N/2] - 1,
N - ([N/2] - 1) = [N/2]+1,
[N/2]
There are [N/2]+1 groups of frequency from index i = 0 to [N/2], each having the frequency = i...
What is stack unwinding?
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reading Nikolai's, jrista's and your answer in this order, now it makes sense!
– n611x007
Aug 10 '12 at 13:46
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How to sort an array of hashes in ruby
...ashes.sort_by(&:zip)
Note that sort_by method will sort by ascending order.
If you need to sort with descending order you could do something like this:
array_of_hashes.sort_by!(&:zip).reverse!
or
array_of_hashes = array_of_hashes.sort_by(&:zip).reverse
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psql: FATAL: Peer authentication failed for user “dev”
...ly locally accessible, with no network access.
Important note:
Definition order in pg_hba.conf matters - rules are read from top to bottom, like iptables, so you probably want to add proposed rules above the rule:
host all all 127.0.0.1/32 ident
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Meaning of -
...L sees the bytes 195, 162. How does it know what characters these are?
In order for the system to interpret those bytes as actual characters (and so display them or convert them to another encoding), it needs to know the encoding used in the XML.
Since most common encodings are compatible with ASC...
Get last n lines of a file, similar to tail
... block_number = -1
blocks = [] # blocks of size BLOCK_SIZE, in reverse order starting
# from the end of the file
while lines_to_go > 0 and block_end_byte > 0:
if (block_end_byte - BLOCK_SIZE > 0):
# read the last block we haven't yet read
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How to sum array of numbers in Ruby?
.../en.wikipedia.org/wiki/MapReduce
http://en.wikipedia.org/wiki/Fold_(higher-order_function)
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