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What is the best algorithm for overriding GetHashCode?
...alue isn't a prime. (The multiplication constant is prime though. I don't know quite how important that is.)
This is better than the common practice of XORing hashcodes for two main reasons. Suppose we have a type with two int fields:
XorHash(x, x) == XorHash(y, y) == 0 for all x, y
XorHash(x, y) ...
Neo4j - Cypher vs Gremlin query language
... 100-200 times faster. We did so and got easily factor 60 out of it. As of now we have no single Cypher query in our system due to lack of confidence. Easy Cypher queries are easy to write in Java, complex queries won't perform. The problem is when you have multiple conditions in your query there is...
What is the meaning of “$” sign in JavaScript
... @Paolo: Often, yes. There was however no indication the OP wanted to know about this. A direct answer is also a good thing. :) Saying that, I would still agree this is a better answer. My only quibble was with the emphasis you were placing on a specific point.
– Noldorin
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Error :: duplicate files during packaging of APK
...
Sorry Xavier. I didn't understood your answer then. Now I can see what did you mean. I tried to change to exclude 'META-INF/notice.txt' but then console prompted that Duplicate files copied in APK META-INF/NOTICE.txt. Strange, isn't it? There is no resources directory under C:...
Python: print a generator expression?
...expression is a "naked" for expression. Like so:
x*x for x in range(10)
Now, you can't stick that on a line by itself, you'll get a syntax error. But you can put parenthesis around it.
>>> (x*x for x in range(10))
<generator object <genexpr> at 0xb7485464>
This is sometime...
How do I execute a program using Maven?
...o, to trigger the plugin from the command line, just run:
mvn exec:java
Now, if you want to execute the exec:java goal as part of your standard build, you'll need to bind the goal to a particular phase of the default lifecycle. To do this, declare the phase to which you want to bind the goal in t...
What is a Proxy in Doctrine 2?
...entity from the database (except when you request the ID, which is always known to the proxy).
This happens fully transparent to your application due to the fact that the proxy extends your entity class.
Doctrine will by default hydrate associations as lazy load proxies if you don't JOIN them in y...
`staticmethod` and `abc.abstractmethod`: Will it blend?
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abstractstaticmethod Deprecated since version 3.3: It is now possible to use staticmethod with abstractmethod(), making this decorator redundant. link
– irakli khitarishvili
Dec 24 '15 at 9:59
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How are Python's Built In Dictionaries Implemented?
Does anyone know how the built in dictionary type for python is implemented? My understanding is that it is some sort of hash table, but I haven't been able to find any sort of definitive answer.
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Can inner classes access private variables?
...dited Mar 17 '15 at 6:57
SimplyKnownAsG
74377 silver badges2424 bronze badges
answered Jan 28 '09 at 1:33
Mart...