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Why is printing “B” dramatically slower than printing “#”?
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undefined reference to `WinMain@16'
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Method has the same erasure as another method in type
...n't ready to make any updates, so you leave your Overrider class alone. In order to correctly override the toList() method, the language designers decided that a raw type was "override-equivalent" to any generified type. This means that although your method signature is no longer formally equal to m...
javax vs java package
...kages, meaning that programmers using the Java language had to use them in order to make any worthwhile use of the java language.
javax.* packages are optional packages, which provides a standard, scalable way to make custom APIs available to all applications running on the Java platform.
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jQuery get mouse position within an element
...could click inside a div, then drag the mouse, then let up on the mouse in order to indicate how long they want something to be. (This is for a calendar control, so the user will be indicating the length, in time, of a certain event)
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Signing a Windows EXE file
...e, you'll need to manually add it as a Trusted Root CA for your machine in order for UAC to tell the user running it that it's from a trusted source. Important. Installing a certificate as ROOT CA will endanger your users privacy. Look what happened with DELL. You can find more information for accom...
Jackson enum Serializing and DeSerializer
...hey're returning data that already includes a user friendly string. But in order to turn the rendered form back into an identifier, we need some code that can reverse the transformation. The hacky accepted answer wants to use a map to handle the transformation, but requires more maintenance. With th...
SQL - find records from one table which don't exist in another
...will easily tell you what you can expect to be fastest in this case. It's orders of magnitude different.
– Jonesopolis
Sep 30 '16 at 13:52
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Why is Dictionary preferred over Hashtable in C#?
...Dictionary - optimized performance (for few items and also for many items)
OrderedDictionary - values can be accessed via int index (by order in which items were added)
SortedDictionary - items automatically sorted
StringDictionary - strongly typed and optimized for strings
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Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...und the processes. Change the CascadeTypes. As for me, what worked was the order. Initially what I was doing was deleting the child before the parent. What worked for me was deleting the parent before the child. Which is weird but it worked. So just play up and down your code until you get your desi...