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Convert a JSON string to object in Java ME?
...ou have many JSON parsers for Java:
JSONObject.java
A JSONObject is an unordered collection of name/value pairs. Its external form is a string wrapped in curly braces with colons between the names and values, and commas between the values and names. The internal form is an object having get() and...
How to generate all permutations of a list?
... and above ONLY
First, import itertools:
import itertools
Permutation (order matters):
print list(itertools.permutations([1,2,3,4], 2))
[(1, 2), (1, 3), (1, 4),
(2, 1), (2, 3), (2, 4),
(3, 1), (3, 2), (3, 4),
(4, 1), (4, 2), (4, 3)]
Combination (order does NOT matter):
print list(itertools.c...
Test PHP headers with PHPUnit
...
I had a more radical solution, in order to use $_SESSION inside my tested/included files.
I edited one of the PHPUnit files at ../PHPUnit/Utils/Printer.php to have a "session_start();" before the command "print $buffer".
It worked for me like a charm. But I...
dynamic_cast and static_cast in C++
...hic classes. In fact, in certian cases the classes must be polymorphic in order for the cast to be legal.
Casts can go in one of two directions: from base to derived (B2D) or from derived to base (D2B). It's simple enough to see how D2B casts would work at runtime. Either ptr was derived from T...
What is PECS (Producer Extends Consumer Super)?
...f a programming language, a typing rule
covariant if it preserves the ordering of types (≤), which orders types from more specific to more generic;
contravariant if it reverses this ordering;
invariant or nonvariant if neither of these applies.
Covariance and contravariance
Read-only data...
How to find a text inside SQL Server procedures / triggers?
...ON m.object_id=o.object_id
WHERE m.definition Like '%'+@Search+'%'
ORDER BY 2,1
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Flatten an irregular list of lists
...
it's a pre-order traversal of the tree formed by the nested lists. only the leaves are returned. Note that this implementation will consume the original data structure, for better or worse. Could be fun to write one that both preserv...
What are the primary differences between Haskell and F#? [closed]
...apply code transformations more freely when it isn't bound to preserve the order of (unknown) side effects. In "encouraged purity" languages you write mostly similar code so the same optimizations would be applicable, only they might invalidate side effects (which aren't there, but the compiler can'...
About .bash_profile, .bashrc, and where should alias be written in? [duplicate]
... it looks for
~/.bash_profile, ~/.bash_login, and
~/.profile, in that order, and reads
and executes commands from the first
one that exists and is readable. The
--noprofile option may be used when the shell is started to inhibit this
behavior.
When a login shell exits, bash
...
Parsing a JSON string in Ruby
...
Also you can sets the option symbolize_names to true, in order to get keys as symbols. Exemple: JSON.parse(string, symbolize_names: true) #=> {key: :value}
– Nando Sousa
Apr 2 '14 at 0:25
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