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How do I read all classes from a Java package in the classpath?
... description from the above website:
Reflections scans your classpath, indexes the metadata, allows you to
query it on runtime and may save and collect that information for many
modules within your project.
Example:
Reflections reflections = new Reflections(
new ConfigurationBuilder()...
SQLite: How do I save the result of a query as a CSV file?
...')
df = pd.read_sql('SELECT * from orders', conn)
df.to_csv('orders.csv', index = False)
You can customize the query to only export part of the sqlite table to the CSV file.
You can also run a single command to export all sqlite tables to CSV files:
for table in c.execute("SELECT name FROM sqlite_...
how to generate migration to make references polymorphic
...
How do you add index to the references column? Do I need to index that?
– mrudult
Apr 20 '14 at 18:20
...
Tainted canvases may not be exported
... likely on your local drive!).
While testing try these workarounds:
Put all page related files (.html, .jpg, .js, .css, etc) on your desktop (not in sub-folders).
Post your images to a site that supports cross-domain sharing (like dropbox.com). Be sure you put your images in dropbox's public fol...
Rails params explained?
...e "1" and params[:boo] would be "octopus".
In HTTP/HTML, the params are really just a series of key-value pairs where the key and the value are strings, but Ruby on Rails has a special syntax for making the params be a hash with hashes inside. For example, if the user's browser requested
http://w...
How to colorize diff on the command line?
...d recently, when running into the problem described above):
git diff --no-index <file1> <file2>
# output to console instead of opening a pager
git --no-pager diff --no-index <file1> <file2>
If you have Git around (which you already might be using anyway), then you will be ...
How to copy a collection from one database to another in MongoDB
...estion for toying around with the shell. Plus, it would not bring over the indexes. If I was doing this, I would do the mongodump/mongorestore every time.
– Jason McCay
Jul 19 '12 at 6:18
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How do I use prepared statements in SQlite in Android?
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Note that SQLiteStatement.bindXXX() has a 1-based index, not 0-based like the most one are.
– Simulant
Nov 14 '13 at 9:02
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How much faster is C++ than C#?
... new List<double>(ROWS*COLS)' which allocates the memory required to index a 2 dimensional array in 1 dimensional format (eg, what you did in C++). There's absolutely no reason to allocate a 2-dimensional array and manually flatten it -- the massive amount of iterations in your pre-test is th...
Preventing an image from being draggable or selectable without using JS
...
Worked on all browsers.
– Milad Abooali
Aug 21 '15 at 3:16
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