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Java - get pixel array from image

...((DataBufferByte) bufferedImage.getRaster().getDataBuffer()).getData(); If you are working with large images and performance is an issue, the first method is absolutely not the way to go. The getRGB() method combines the alpha, red, green and blue values into one int and then returns the result, ...
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Looping through the content of a file in Bash

...g whitespace, interpreting backslash sequences, and skipping the last line if it's missing a terminating linefeed. If these are concerns, you can do: while IFS="" read -r p || [ -n "$p" ] do printf '%s\n' "$p" done < peptides.txt Exceptionally, if the loop body may read from standard input...
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How to do a LIKE query in Arel and Rails?

...ke using where("name like ?", ...), this approach is more portable across different databases. For example, it would result in ILIKE being used in a query against a Postgres db. – dkobozev Nov 2 '11 at 21:46 ...
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How can I remove all objects but one from the workspace in R?

... require(gdata) keep(object_1,...,object_n,sure=TRUE) ls() share | improve this answer | follow | ...
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How to get the root dir of the Symfony2 application?

...af Ali. —- Use this: $this->get('kernel')->getRootDir(); And if you want the web root: $this->get('kernel')->getRootDir() . '/../web' . $this->getRequest()->getBasePath(); this will work from controller action method... EDIT: As for the services, I think the way you did...
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The import android.support cannot be resolved

...ort Library has been added to your dependencies. Rebuild your project and now everything should work. Further reading regarding this Question: Support Library - Android Dev Recent Support Library Revisions Support Library Packages What is an Android Support Library? How Android Support Library ...
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When should I use OWIN Katana?

...rvers and framework components. That means that your application code will now be aware of the OWIN interface, but not of the webserver that is serving the request. In return, applications can be more easily ported between hosts and potentially entire platforms/operating systems. For example, the a...
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How to split a sequence into two pieces by predicate?

... You can also use foldLeft if you need something a little extra. I just wrote some code like this when partition didn't cut it: val list:List[Person] = /* get your list */ val (students,teachers) = list.foldLeft(List.empty[Student],List.empty[Teac...
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Convert LocalDate to LocalDateTime or java.sql.Timestamp

...ttribute(Timestamp ts) { return ts.toLocalDateTime(); } } So now it is relative timezone independent time. Additionally it is easy do: LocalDate ld = ldt.toLocalDate(); LocalTime lt = ldt.toLocalTime(); Formatting: DateTimeFormatter DATE_TME_FORMATTER = DateTimeFormatter.ofPat...
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Example for sync.WaitGroup correct?

...hen you already know how many times it will be called. Waitgroups panic if the counter falls below zero. The counter starts at zero, each Done() is a -1 and each Add() depends on the parameter. So, to ensure that the counter never drops below and avoid panics, you need the Add() to be guaranteed ...