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What is a covariant return type?
...urn Object - and so calling code would have to explicitly downcast the result of the method call (even thought both sides "know" it can only ever be an instance of MyFoo).
Note that there's nothing special about clone() and that any overridden method can have a covariant return - I used it as an ex...
How to stretch the background image to fill a div
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Why is it multiplying instead of stretching the image to fit the container: jsfiddle.net/qdzaw/424
– SearchForKnowledge
Oct 24 '14 at 19:01
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CKEditor automatically strips classes from div
...ever I press the source button. For example if I hit source and create a <div> ...
13 Answers
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How do I enable/disable log levels in Android?
...velopment device using System Properties. The property to set is log.tag.<YourTag> and it should be set to one of the following values: VERBOSE, DEBUG, INFO, WARN, ERROR, ASSERT, or SUPPRESS. More information on this is available in the documentation for the isLoggable() method.
You can set...
Viewing contents of a .jar file
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FYI, You may need to add C:\Program Files\Java\jdk<version>\bin to your system or user PATH environment variable before you can use jar as a system command. (Where <version> is your jdk version-build number. Check it in C:\Program Files\Java)
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How to convert ‘false’ to 0 and ‘true’ to 1 in Python
... the boolean into 1 or 0. Note that any value not equal to 'true' will result in 0 being returned.
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Set up git to pull and push all branches
I'd like to push and pull all the branches by default, including the newly created ones.
8 Answers
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Change One Cell's Data in mysql
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UPDATE TABLE <tablename> SET <COLUMN=VALUE> WHERE <CONDITION>
Example:
UPDATE TABLE teacher SET teacher_name='NSP' WHERE teacher_id='1'
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How to style UITextview to like Rounded Rect text field?
...iting a bit of code using the QuartzCore framework:
//first, you
#import <QuartzCore/QuartzCore.h>
//.....
//Here I add a UITextView in code, it will work if it's added in IB too
UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(50, 220, 200, 100)];
//To make the border l...
TSQL - Cast string to integer or return default value
Is there a way in T-SQL to cast an nvarchar to int and return a default value or NULL if the conversion fails?
8 Answers
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