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How to run a background task in a servlet based web application?

... your job here which should run every 5 seconds. } } Yes, that's really all. The container will automatically pickup and manage it. EJB unavailable? Use ScheduledExecutorService If your environment doesn't support EJB (i.e. you're not using not a real Java EE server, but a barebones servle...
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Comparing two NumPy arrays for equality, element-wise

...two NumPy arrays for equality (where equality is defined as: A = B iff for all indices i: A[i] == B[i] )? 6 Answers ...
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How to make a element expand or contract to its parent container?

...its parent container, in this case a <div> , no matter how big or small that container may be. 5 Answers ...
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How do I set a column value to NULL in SQL Server Management Studio?

... I think @Zack properly answered the question but just to cover all the bases: Update myTable set MyColumn = NULL This would set the entire column to null as the Question Title asks. To set a specific row on a specific column to null use: Update myTable set MyColumn = NULL where Fi...
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How to delete an old/unused Data Model Version in Xcode

...d the .xcdatamodeld file to your project This eliminates the need to manually modify any of the project metadata files. share | improve this answer | follow ...
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Is 0 a decimal literal or an octal literal?

...tal literals are almost unused today. † Then it dawned upon me that actually almost all integer literals in my code are octal, namely 0 . ...
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{version} wildcard in MVC4 Bundle

...e have bundles. While defining the bundles we can use wildcards like * for all files in a folder. 3 Answers ...
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What's in an Eclipse .classpath/.project file?

... Eclipse is a runtime environment for plugins. Virtually everything you see in Eclipse is the result of plugins installed on Eclipse, rather than Eclipse itself. The .project file is maintained by the core Eclipse platform, and its goal is to describe the project from a gener...
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When do I use fabs and when is it sufficient to use std::abs?

... In C++, it's always sufficient to use std::abs; it's overloaded for all the numerical types. In C, abs only works on integers, and you need fabs for floating point values. These are available in C++ (along with all of the C library), but there's no need to use them. ...
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git replace local version with remote version

...ex directly use git read-tree remote/branch:subdir/ You can then (optionally) update your working copy by doing git checkout-index -u --force share | improve this answer | ...