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Comparator.reversed() does not compile using lambda
...be Object (the inference fallback of last resort), which fails.
Obviously if you can use a method reference, do that and it'll work. Sometimes you can't use a method reference, e.g., if you want to pass an additional parameter, so you have to use a lambda expression. In that case you'd provide an e...
Rails: How to list database tables/objects using the Rails console?
I was wondering if you could list/examine what databases/objects are available to you in the Rails console. I know you can see them using other tools, I am just curious.
Thanks.
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How can I extract a good quality JPEG image from a video file with ffmpeg?
...v 4 -frames:v 1 output.jpg
This will work with any video input. See below if your input is MJPEG.
MJPEG
If your input is MJPEG (Motion JPEG) then the images can be extracted without any quality loss.
The ffmpeg or ffprobe console output can tell you if your input is MJPEG:
$ ffprobe -v error -sele...
How to execute raw SQL in Flask-SQLAlchemy app
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If you do an insert or update, how do you commit the transaction?
– David S
Jan 30 '14 at 23:01
14
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How can i take an UIImage and give it a black border?
...e blank space looks ugly with border set to it.. Did you faced this issue? If yes, please suggest a method to solve this
– Meet
Jun 12 '12 at 8:24
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how to mysqldump remote db from local machine
...robably connects by socket rather then by port)
edit: well, to elaborate: if host is set to localhost, a configured (or default) --socket option is assumed. See the manual for which option files are sought / used. Under Windows, this can be a named pipe.
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How can I override Bootstrap CSS styles?
I need to modify bootstrap.css to fit my website. I feel it's better to create a separate custom.css file instead of modifying bootstrap.css directly, one reason being that should bootstrap.css get an update, I'll suffer trying to re-include all my modifications. I'll sacrifice some load tim...
Drawing Isometric game worlds
...iles on the map will increase in diagonal lines, which might make it more difficult to visually map the location on the screen to the map represented as an array:
However, there is going to be a pitfall to implementing the above example code -- the rendering order will cause tiles that are suppos...
Format a date using the new date time API
...ds of temporal objects.
JSR-310 has choosen another way, namely to allow different temporal types which consist of type-specific sets of supported built-in fields. The natural consequence is that not every possible field is supported by every type (and users can even define their own specialized fi...
How does lucene index documents?
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This is a different question: See lucidimagination.com/search/… Other than that, seeing your question pattern I suggest you read the 'Lucene in Action' book: manning.com/hatcher2 (First edition is a bit dated, but can be found in a de...