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What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
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The annotation @JoinColumn indicates that this entity is the owner of the relationship (that is: the corresponding table has a column with a foreign key to the referenced table), whereas the attribute mappedBy indicates that the entity in this side is the inverse of the rela...
Is it possible to make an ASP.NET MVC route based on a subdomain?
Is it possible to have an ASP.NET MVC route that uses subdomain information to determine its route? For example:
10 Answer...
What does the thread_local mean in C++11?
I am confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to...
Is it possible to preview stash contents in git?
... a few weeks later, I want to inspect the stash, and find out what changes it would make if I applied it to working tree in its current state.
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What's default HTML/CSS link color?
I need its code representation, like #FFFFFF .
10 Answers
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Scanner is skipping nextLine() after using next() or nextFoo()?
...xtInt method does not read the newline character in your input created by hitting "Enter," and so the call to Scanner.nextLine returns after reading that newline.
You will encounter the similar behaviour when you use Scanner.nextLine after Scanner.next() or any Scanner.nextFoo method (except nextLi...
How to use the IEqualityComparer
I have some bells in my database with the same number. I want to get all of them without duplication. I created a compare class to do this work, but the execution of the function causes a big delay from the function without distinct, from 0.6 sec to 3.2 sec!
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Run ssh and immediately execute command [duplicate]
...; bash -l'
will execute the command and then start up a login shell when it completes. For example:
ssh -t user@domain.com 'cd /some/path; bash -l'
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How to handle Back button with in the dialog?
I am developing an application that when the button is pressed, it opens a dialog with OK and Cancel buttons.
8 Answers
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Key existence check in HashMap
... // Okay, there's a key but the value is null
} else {
// Definitely no such key
}
}
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