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Array extension to remove object by value
...o the original T. If you wanted to use T in your method, you can do so without specifying it on your method.
The reason that you get the second error 'AnyObject' is not convertible to 'T' is that all possible values for T are not all classes. For an instance to be converted to AnyObject, it must be...
Hiding the scroll bar on an HTML page
...ll not work with a mouse scroller wheel, it took me a while to figure this out.
– Doug Molineux
Aug 19 '13 at 20:17
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MySQL “Group By” and “Order By”
...te columns cause query errors (ER_WRONG_FIELD_WITH_GROUP)
As @mikep points out below the solution is to use ANY_VALUE() from 5.7 and above
See
http://www.cafewebmaster.com/mysql-order-sort-group
https://dev.mysql.com/doc/refman/5.6/en/group-by-handling.html
https://dev.mysql.com/doc/refman/5.7/en/gr...
How do you stop Console from popping up automatically in Eclipse
...e toolbar at the bottom that allow you to take focus (or not)...one for stdout, one for stderr. I have an image with the buttons circled.
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JPA and Hibernate - Criteria vs. JPQL or HQL
...r to add some ordering dynamically or leave some parts (e.g. restrictions) out depending on some parameter.
On the other hand I'm using HQL for static and complex queries, because it's much easier to understand/read HQL. Also, HQL is a bit more powerful, I think, e.g. for different join types.
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Can I set background image and opacity in the same property?
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You'd be surprised what you can squeeze out of PNG. For instance, at 0.2 opacity, you're probably not going to be picking out many details, so you can convert to Indexed-PNG. I actually use this on my own website, and it squashes a 1920x1080 background image to jus...
Hashing a string with Sha256
...and see whether your results still match up. If not, you'll have to figure out what encoding your friend is really using; it might be one of the 8-bit "code pages" that used to be popular before the invention of Unicode. (Again, I think Windows is the main reason that anyone still needs to worry abo...
Calling a parent window function from an iframe
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I recently had to find out why this didn't work too.
The javascript you want to call from the child iframe needs to be in the head of the parent. If it is in the body, the script is not available in the global scope.
<head>
<script&g...
How to set JVM parameters for Junit Unit Tests?
...tion will be carried in the source tree and applied when tests are carried out. See the Maven Surefire Plugin documentation.
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Java inner class and static nested class
...es.
Static nested classes are accessed using the enclosing class name:
OuterClass.StaticNestedClass
For example, to create an object for the static nested class, use this syntax:
OuterClass.StaticNestedClass nestedObject = new OuterClass.StaticNestedClass();
Objects that are instances of an...