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Override Java System.currentTimeMillis for testing time sensitive code
Is there a way, either in code or with JVM arguments, to override the current time, as presented via System.currentTimeMillis , other than manually changing the system clock on the host machine?
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Multiprocessing: How to use Pool.map on a function defined in a class?
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18 Answers
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Remove element of a regular array
I have an array of Foo objects. How do I remove the second element of the array?
15 Answers
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NSOperation vs Grand Central Dispatch
I'm learning about concurrent programming for iOS. So far I've read about NSOperation/NSOperationQueue and GCD . What are the reasons for using NSOperationQueue over GCD and vice versa?
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Casting vs using the 'as' keyword in the CLR
When programming interfaces, I've found I'm doing a lot of casting or object type conversion.
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How to check if a view controller is presented modally or pushed on a navigation stack?
How can I, in my view controller code, differentiate between:
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Java: Get month Integer from Date
How do I get the month as an integer from a Date object ( java.util.Date )?
7 Answers
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Is there any performance gain in indexing a boolean field?
I'm just about to write a query that includes a WHERE isok=1 . As the name implies, isok is a boolean field (actually a TINYINT(1) UNSIGNED that is set to 0 or 1 as needed).
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How to Display Selected Item in Bootstrap Button Dropdown Title
I am using the bootstrap Dropdown component in my application like this:
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How to use ternary operator in razor (specifically on HTML attributes)?
With the WebForms view engine, I'll commonly use the ternary operator for very simple conditionals, especially within HTML attributes. For example:
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