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How do I address unchecked cast warnings?
...eally should have the generic parameters <String, String>. You must know beforehand what the parameters should be (or you'll find out when you get a ClassCastException). This is why the code generates a warning, because the compiler can't possibly know whether is safe.
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How to write a multidimensional array to a text file?
...8.00 199.00
# New slice
Reading it back in is very easy, as long as we know the shape of the original array. We can just do numpy.loadtxt('test.txt').reshape((4,5,10)). As an example (You can do this in one line, I'm just being verbose to clarify things):
# Read the array from disk
new_data = np...
Optimal number of threads per core
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I know this question is rather old, but things have evolved since 2009.
There are two things to take into account now: the number of cores, and the number of threads that can run within each core.
With Intel processors, the nu...
How to delete an item in a list if it exists?
... in iterable if item] if the first argument is None); in Python 3.x, it is now equivalent to (item for item in iterable if function(item)). The subtle difference is that filter used to return a list, now it works like a generator expression - this is OK if you are only iterating over the cleaned lis...
How do I reference a specific issue comment on github?
...ut I can't find any information on how to do that ( here for example). I know that it's possible to link to issues, but is it possible to link to specific comments in that issue?
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Change default global installation directory for node.js modules in Windows?
...is in the npm-folders documentation. I don't want to start my Win notebook now so I cannot verify it, but you should only change prefix to C:\Program Files\nodejs in your config file. If you want to change it globally for all users, edit the C:\Program Files\nodejs\npmrc file, otherwise create/edit ...
Difference between validate(), revalidate() and invalidate() in Swing GUI
...ling its doLayout() method, which typically will invoke the LayoutManager. Now each child placed on this container will be validated recursively, so that the entire tree will be laid out and will become valid.
revalidate() : revalidate() is to be called when you change an attribute that would affec...
How to log request and response body with Retrofit-Android?
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Adding interceptors this way will now result in an UnsupportedOperationException in OkHttp v3. The new way is: OkHttpClient.Builder().addInterceptor(logging).build() github.com/square/okhttp/issues/2219
– Jim Pekarek
J...
Chrome hangs after certain amount of data transfered - waiting for available socket
... case there were many tabs open and polling to server, closed all tabs and now it is good.
– igaurav
Aug 22 '17 at 7:06
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Modify SVG fill color when being served as Background-Image
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This answer was great as of 2012, but now CSS masks and/or filters have been supported in all browsers for some time. I recommend that anyone reading this now check out the links in widged's answer below or just skip to CSS Masks here, which is a really easy solu...