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Why an abstract class implementing an interface can miss the declaration/implementation of one of th
A curious thing happens in Java when you use an abstract class to implement an interface: some of the interface's methods can be completely missing (i.e. neither an abstract declaration or an actual implementation is present), but the compiler does not complain.
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How to install Xcode Command Line Tools
...downloads" and find the Command line tools in the list - hope this saves some time for someone.
– pagid
Nov 21 '12 at 0:37
148
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How do I find which transaction is causing a “Waiting for table metadata lock” state?
I am trying to perform some DDL on a table and SHOW PROCESSLIST results in a " Waiting for table metadata lock " message.
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How to complete a git clone for a big project on an unstable connection?
I am trying to git clone the LibreOffice codebase, but at the moment I have an internet connection of about 300kbps and it's just anything but stable. I can get the connection back any moment, but then the git clone process already stopped working, and no way to get it running again. Is there some w...
Undo svn add without reverting local edits
...of files that shouldn't be in the repository. I also have local edits in some files that I want to keep. Is there a simple way to just undo the svn add without reverting the local edits? The main suggestion I see on Google is svn revert , which supposedly undoes the local edits.
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How can I recover the return value of a function passed to multiprocessing.Process?
...t str(procnum) + ' represent!'
return_dict[procnum] = procnum
if __name__ == '__main__':
manager = multiprocessing.Manager()
return_dict = manager.dict()
jobs = []
for i in range(5):
p = multiprocessing.Process(target=worker, args=(i,return_dict))
jobs.append(p)...
Android ViewPager with bottom dots
...:tabIndicatorHeight="0dp"/>
</RelativeLayout>
Hook up your UI elements inactivity or fragment as follows:
Java Code:
mImageViewPager = (ViewPager) findViewById(R.id.pager);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabDots);
tabLayout.setupWithViewPager(mImageViewPager, true);
T...
How are feature_importances in RandomForestClassifier determined?
I have a classification task with a time-series as the data input, where each attribute (n=23) represents a specific point in time. Besides the absolute classification result I would like to find out, which attributes/dates contribute to the result to what extent. Therefore I am just using the feat...
Searching word in vim?
...
like this:
/\<word\>
\< means beginning of a word, and \> means the end of a word,
Adding @Roe's comment:
VIM provides a shortcut for this. If you already have word on screen and you want to find other instances of it, you can put the cursor on...
Idiomatic way to convert an InputStream to a String in Scala
...rce.fromInputStream(is).getLines().mkString("\n")
does pretty much the same thing. Not sure why you want to get lines and then glue them all back together, though. If you can assume the stream's nonblocking, you could just use .available, read the whole thing into a byte array, and create a stri...