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Android Studio - How to Change Android SDK Path
.../<username>/android-sdks" (Instead of <username> says the real one). Apply (and reset Andr Studio, just in case). The path was saved successfully. Again under Platform Settings, click on SDKs. Now in the middle column I can see all the sdks installed on the new path
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Mockito - difference between doReturn() and when()
...e are cases where you can't use when/thenReturn. Stubbing void methods is one such. Others include use with Mockito spies, and stubbing the same method more than once.
One thing that when/thenReturn gives you, that doReturn/when doesn't, is type-checking of the value that you're returning, at com...
Converting a Java collection into a Scala collection
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For future reference: With Scala 2.8, it could be done like this:
import scala.collection.JavaConversions._
val list = new java.util.ArrayList[String]()
list.add("test")
val set = list.toSet
set is a scala.collection.immutable.Set[String] after this.
Also see Ben James' a...
Get selected text from a drop-down list (select box) using jQuery
... is the only Jquery that works with asp.net for me, I hence assent to that one. This one: ('$("#yourdropdownid option:selected").text();' did not work in an asp.net page using a master page.
– netfed
Sep 9 '13 at 16:40
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Removing whitespace from strings in Java
...") produce the same result.
The second regex is 20% faster than the first one, but as the number consecutive spaces increases, the first one performs better than the second one.
Assign the value to a variable, if not used directly:
st = st.replaceAll("\\s+","")
...
How to organize large R programs?
...blog post gives a (my opinion) really good quick tutorial to build a bare bones first package: hilaryparker.com/2014/04/29/writing-an-r-package-from-scratch
– panterasBox
Sep 3 '15 at 14:32
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SQLite Concurrent Access
...inimize contention. Especially SQLite 3.
For most desktop/laptop/tablet/phone applications, SQLite is fast enough as there's not enough concurrency. (Firefox uses SQLite extensively for bookmarks, history, etc.)
For server applications, somebody some time ago said that anything less than 100K page...
delegate keyword vs. lambda notation
...both expressions have been compiled. How could they both compile, but with one being converted to a delegate and one to an expression tree? It's a tricky one - you have to use another feature of anonymous methods; the only one which isn't shared by lambda expressions. If you specify an anonymous met...
_=> what does this underscore mean in Lambda expressions?
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It is a parameter name, albeit not a useful one, but it's the one typically used (by some conventions) when you need to specify that the expression has a parameter in order to get the code to compile, but you don't really care about it, so you're just going to ignore i...
What is the recommended way to delete a large number of items from DynamoDB?
...n this API and the former only targets the Attribute value of the hash component of the composite primary key..
Please note that you''ll have to deal with the query API paging here as usual, see the ExclusiveStartKey parameter:
Primary key of the item from which to continue an earlier query. A...