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Check if a value exists in ArrayList
How can I check if a value that is written in scanner exists in an ArrayList ?
7 Answers
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Given final block not properly padded
...you may have to add some padding bytes at the end before encrypting a byte array so that the length of the byte array is multiple of the block size:
Specifically in your case the padding schema you chose is PKCS5 which is described here:
http://www.rsa.com/products/bsafe/documentation/cryptoj35html...
Android Fatal signal 11 (SIGSEGV) at 0x636f7d89 (code=1). How can it be tracked down?
... Try to find out error in native side, where you used any data-array. In most cases,this will occur in data-arrays, when by-mistake you cross its bounds or data-limit.
– Vivek Bansal
Sep 12 '13 at 14:35
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Finding differences between elements of a list
... python
numpy.diff is slow because it has to first convert the list to a ndarray. Obviously if you start with an ndarray it will be much faster:
In [22]: arr = np.array(L)
In [23]: %timeit np.diff(arr)
100 loops, best of 3: 3.02 ms per loop
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How do you add a Dictionary of items into another Dictionary
Arrays in Swift support the += operator to add the contents of one Array to another. Is there an easy way to do that for a dictionary?
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What is the difference between a reference type and value type in c#?
...t. If PO boxes doesn't do it for you, try a hashtable or dictionary or an array or something similar.
Thus, when you do something like:
var a = "Hello";
the computer will do the following:
allocate memory (say starting at memory location 1000 for 5 bytes) and put H (at 1000), e (at 1001), l (...
Assign one struct to another in C
...ve Complex datatypes in a structure. Here COMPLEX means that you cant have array of pointers ,pointing to lists.
An array of characters within a structure will itself not work on most compilers, this is because assignment will simply try to copy without even looking at the datatype to be of compl...
How to get config parameters in Symfony2 Twig Templates
...sing a parameters.yml instead of parameters.ini), you can store objects or arrays instead of key-value pairs, so you can manage your globals this way:
config.yml (edited only once):
# app/config/config.yml
twig:
globals:
project: %project%
parameters.yml:
# app/config/parameters.yml
proje...
Selecting a row of pandas series/dataframe by integer index
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To index-based access to the pandas table, one can also consider numpy.as_array option to convert the table to Numpy array as
np_df = df.as_matrix()
and then
np_df[i]
would work.
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Is multiplication and division using shift operators in C actually faster?
...numbers then use arithmetic operators like + - * / %. If you're working on arrays of bits, use bit twiddling operators like & ^ | >> . Don't mix them; an expression that has both bit twiddling and arithmetic is a bug waiting to happen.
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