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Virtual/pure virtual explained
What exactly does it mean if a function is defined as virtual and is that the same as pure virtual?
12 Answers
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iOS 7 - Status bar overlaps the view
...layout, in order to resize the height of views properly on iOS 6 I had to set Delta height as well as Delta Y.
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'Incomplete final line' warning when trying to read a .csv file into R
.... So the problem is the format of the file.
One way of finding out, is to set the working directory to the directory where the file is. That way you see the extension of the file you read in. I know on Windows it's not shown standard, so you might believe it's csv while it isn't.
The next thing y...
How can I delete a query string parameter in JavaScript?
Is there better way to delete a parameter from a query string in a URL string in standard JavaScript other than by using a regular expression?
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String replacement in Objective-C
...multiple string replacement:
NSString *s = @"foo/bar:baz.foo";
NSCharacterSet *doNotWant = [NSCharacterSet characterSetWithCharactersInString:@"/:."];
s = [[s componentsSeparatedByCharactersInSet: doNotWant] componentsJoinedByString: @""];
NSLog(@"%@", s); // => foobarbazfoo
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JPA eager fetch does not join
...hMode.JOIN)
@Fetch(FetchMode.SUBSELECT)
in Hibernate. It also allows to set SELECT mode explicitly using @Fetch(FetchMode.SELECT) which can be tuned by using batch size e.g. @BatchSize(size=10).
Corresponding annotations in EclipseLink are:
@JoinFetch
@BatchFetch
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What are the main disadvantages of Java Server Faces 2.0?
...nts/attributes feature. Further the JSF implementation Mojarra has its own set of issues. Relatively a lot of them are related to the sometimes unintuitive behaviour of <ui:repeat>, the new partial state saving implementation and the poorly implemented flash scope. Most of them are fixed in a ...
How to print without newline or space?
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In Python 3, you can use the sep= and end= parameters of the print function:
To not add a newline to the end of the string:
print('.', end='')
To not add a space between all the function arguments you want to print:
print('a', 'b', 'c', sep='')
You can pass any string to e...
What is the equivalent of the C++ Pair in Java?
...n why there is no Pair<L,R> in Java? What would be the equivalent of this C++ construct? I would rather avoid reimplementing my own.
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How do I create directory if none exists using File class in Ruby?
I have this statement:
7 Answers
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