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How can I determine whether a Java class is abstract by reflection
I am interating through classes in a Jar file and wish to find those which are not abstract. I can solve this by instantiating the classes and trapping InstantiationException but that has a performance hit as some classes have heavy startup. I can't find anything obviously like isAbstract() in the C...
Differences between contentType and dataType in jQuery ajax function
I have the following Jquery callback function and I have a litle doubt about it (I don't know very well Jquery):
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How can I read a whole file into a string variable
I have lots of small files, I don't want to read them line by line.
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Convert String to Uri
How can I convert a String to a Uri in Java (Android)? i.e.:
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Why are `private val` and `private final val` different?
I used to think that private val and private final val are same, until I saw section 4.1 in Scala Reference:
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Scala: List[Future] to Future[List] disregarding failed futures
I'm looking for a way to convert an arbitrary length list of Futures to a Future of List. I'm using Playframework, so ultimately, what I really want is a Future[Result] , but to make things simpler, let's just say Future[List[Int]] The normal way to do this would be to use Future.sequence(...) ...
Bash foreach loop
I have an input (let's say a file).
On each line there is a file name.
How can I read this file and display the content for each one.
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Android: What is android.R.id.content used for?
Anybody could explain the meaning of "android.R.id.content" ?
3 Answers
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Find difference between timestamps in seconds in PostgreSQL
I have a table in PostgreSQL 8.3 with 2 timestamp columns. I would like to get the difference between these timestamps in seconds. Could you please help me how to get this done?
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MySQL: Selecting multiple fields into multiple variables in a stored procedure
Can I SELECT multiple columns into multiple variables within the same select query in MySQL?
3 Answers
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