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“Conversion to Dalvik format failed with error 1” on external JAR
... after javadoc generated code will works fine.Please check this too if any one still occurs.
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NoSQL (MongoDB) vs Lucene (or Solr) as your database
...ly easier transition for programmers detoxing from the RDBMS world. Unless one's used to it Lucene & Solr have a steeper learning curve.
There aren't many examples of using Lucene/Solr as a datastore, but Guardian has made some headway and summarize this in an excellent slide-deck, but they too ...
Creating an empty Pandas DataFrame, then filling it?
...ating a data frame with index x 0 dimensions (columns = []), and attaching one column in each turn of a loop. I mean df[col_name] = pandas.Series([...]) in a loop iterating through column names. In the former case, not only the memory allocation takes time, but replacing NaNs with new values seems e...
Why is try {…} finally {…} good; try {…} catch{} bad?
...exception within their scope. Anything else should be passed along for someone else to handle. If I have an application that gets a file name from users then reads the file, and my file reader gets an exception opening the file, it should pass them up (or consume the exception and throw a new one) s...
How do I clone a generic List in Java?
...ist<String> that I'd like to return a copy of. ArrayList has a clone method which has the following signature:
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How do you serialize a model instance in Django?
...is your model instance
dict_obj = model_to_dict( obj )
You now just need one straight json.dumps call to serialize it to json:
import json
serialized = json.dumps(dict_obj)
That's it! :)
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Delete commits from a branch in Git
...asked for an already made commit. If you reset --hard, and check the log --oneline --all, the commits still remain in the tree. How do we delete these commits from tree? Thanks.
– iGbanam
Mar 17 '13 at 3:09
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Is there any significant difference between using if/else and switch-case in C#?
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Hey, I owe you an apology. Sorry for being a bone head.
– Scott Wisniewski
Dec 28 '08 at 8:39
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Force Intellij IDEA to reread all maven dependencies
...t and I do this. Does this command apply to all modules, just the selected one, or the first one in the project when it runs?
– slartibartfast
Sep 25 '15 at 22:06
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Can I squash commits in Mercurial?
I have a pair of commits that should really be just one. If I was using git, I would use:
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