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How to sort an array of objects by multiple fields?
...
A multi dimensional sorting method, based on this answer:
Update: Here is an "optimized" version. It does a lot more preprocessing and creates a comparison function for each sorting option beforehand. It might need more more memory (a...
How to upload a project to Github
...he below steps redundant.
You can also use sourcetree to get both git and mercurial setup on Windows.
Here is how you would do it in Windows:
If you don't have git installed, see this article on how to set it up.
Open up a Windows command prompt.
Change into the directory where your source cod...
How do I read / convert an InputStream into a String in Java?
...ng Apache commons IOUtils to copy the InputStream into a StringWriter... something like
StringWriter writer = new StringWriter();
IOUtils.copy(inputStream, writer, encoding);
String theString = writer.toString();
or even
// NB: does not close inputStream, you'll have to use try-with-resources fo...
How to select bottom most rows?
...other answers, suggesting just changing the ORDER BY will not return the same results described in the question, as they will be out of order (unless order doesn't matter, which the OP did not say).
– Tom H
Dec 9 '09 at 20:32
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Why does sizeof(x++) not increment x?
...n bytes) of its operand, which may be an expression or the parenthesized name of a type. The size is determined from the type of the operand. The result is an integer. If the type of the operand is a variable length array type, the operand is evaluated; otherwise, the operand is not evaluated and th...
ManyRelatedManager object is not iterable
...o return an iterable.
If you include the parenthesis you're saying "give me all the values in the stores answers so long as that value is also in the wish lists answers". Without the parenthesis you're asking for all the values from the store's answers that are also in the all function, which is m...
how to avoid a new line with p tag?
How can I stay on the same line while working with <p> tag?
5 Answers
5
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Loading/Downloading image from URL on Swift
...ter
Synchronously:
if let filePath = Bundle.main.path(forResource: "imageName", ofType: "jpg"), let image = UIImage(contentsOfFile: filePath) {
imageView.contentMode = .scaleAspectFit
imageView.image = image
}
Asynchronously:
Create a method with a completion handler to get the image data f...
Using LIMIT within GROUP BY to get N results per group?
...then you could use FIND_IN_SET, that returns the position of the first argument inside the second one, eg.
SELECT FIND_IN_SET('2006', '2006,2003,2008,2001,2007,2009,2002,2004,2005,2000');
1
SELECT FIND_IN_SET('2009', '2006,2003,2008,2001,2007,2009,2002,2004,2005,2000');
6
Using a combination of ...
Java concurrency: Countdown latch vs Cyclic barrier
...(optional) Runnable task which is run once the common barrier condition is met.
It also allows you to get the number of clients waiting at the barrier and the number required to trigger the barrier. Once triggered the barrier is reset and can be used again.
For simple use cases - services sta...