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Why do Lua arrays(tables) start at 1 instead of 0?
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My understanding is that it's that way just because the authors thought it would be a good way to do it, and after they rolled the language out to the public that decision calcified considerably. (I suspect there would be he...
Java default constructor
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Hi. As per my knowledge let me clear the concept of default constructor:
The compiler automatically provides a no-argument, default constructor
for any class without constructors. This default constructor will call
the no-argume...
C++: const reference, before vs after type-specifier
...r machinery, with no conclusions, no direct answer — nothing. You'll get my upvote when you add a simple clear summary stating "No, there is no semantic difference between both syntaxes, but there are some stylistical considerations as follows...". And only then all those bullets.
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Why does PHP consider 0 to be equal to a string?
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Was scratching my head on this one too when I was looping on string keys, but the array had an initial 'zero' index item which kept resulting in true on the first string key compare. I was like what? How in the... so, sure enough, this answ...
How does push notification technology work on Android?
... But I think it works on emulator as well. The thing that come into my mind is that the device keep server updated with its current path (IP). When google server needs to send notification, it takes its current path and forward message to that path. Am I right to some extent?
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Only parameterless constructors and initializers are supported in LINQ to Entities
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Having just encountered this error myself, I thought I would add that if the Payment type is a struct, you would also encounter the same error because struct types do not support parameterless constructors.
In that event, converting Payment to a class and usi...
Difference between maven scope compile and provided for JAR packaging
...t mention about it. I use Maven for a while, but I've just already asked myself about it :) So it seems that in JAR packaging context, there isn't any difference between compile and provided (except dependency transition). Am I right?
– emstol
Jul 11 '11 at ...
Pickle incompatibility of numpy arrays between Python 2 and 3
...nd wasted an hour and still didn't find a solution though I was working on my own data to create a chatbot.
vec_x and vec_y are numpy arrays:
data=[vec_x,vec_y]
hkl.dump( data, 'new_data_file.hkl' )
Then you just read it and perform the operations:
data2 = hkl.load( 'new_data_file.hkl' )
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What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
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I did some benchmarks to see what's the fastest way and these are my results and conclusions. I ran each method 10M times and added a comment with the average time per run.
If your input milliseconds are not limited to one day (your result may be 143:59:59.999), these are the options, from...
How to unzip files programmatically in Android?
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This is my unzip method, which I use:
private boolean unpackZip(String path, String zipname)
{
InputStream is;
ZipInputStream zis;
try
{
is = new FileInputStream(path + zipname);
zis = n...