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Why are only final variables accessible in anonymous class?
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As noted in comments, some of this becomes irrelevant in Java 8, where final can be implicit. Only an effectively final variable can be used in an anonymous inner class or lambda expression though.
It's basically due to the way Java manages closures.
Wh...
There is no ViewData item of type 'IEnumerable' that has the key 'xxx'
There are a couple of posts about this on Stack Overflow but none with an answer that seem to fix the problem in my current situation.
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How to test a merge without actually merging first
Is there any way of simulating a git merge between two branches, the current working branch and the master, but without making any changes?
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Add a prefix to all Flask routes
...very route. Right now I add a constant to the route at every definition. Is there a way to do this automatically?
10 Answ...
Why do we need entity objects? [closed]
... honest, thoughtful debate on the merits of the currently accepted enterprise application design paradigm.
41 Answers
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Can javax.persistence.Query.getResultList() return null?
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You are right. JPA specification says nothing about it. But Java Persistence with Hibernate book, 2nd edition, says:
If the query result is empty, a null is returned
Hibernate JPA implementation (Entity Manager) return null when you call query.getResultList() with no result.
UPDATE
As ...
Python: avoid new line with print command [duplicate]
I've started programming today and have this issue with Python. It's pretty dumb but I can't figure out how to do it. When I use the print command, it prints whatever I want and then goes to a different line. For example:
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How does type Dynamic work and how to use it?
I heard that with Dynamic it is somehow possible to do dynamic typing in Scala. But I can't imagine how that might look like or how it works.
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What does the “+” (plus sign) CSS selector mean?
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See adjacent selectors on W3.org.
In this case, the selector means that the style applies only to paragraphs directly following another paragraph.
A plain p selector would apply the style to every paragraph in the page.
This will only work on IE7 or above. In ...
Clearing a string buffer/builder after loop
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One option is to use the delete method as follows:
StringBuffer sb = new StringBuffer();
for (int n = 0; n < 10; n++) {
sb.append("a");
// This will clear the buffer
sb.delete(0, sb.length());
}
Another option (bit clean...