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Calling remove in foreach loop in Java [duplicate]

...e Java Documentation : The iterators returned by this class's iterator and listIterator methods are fail-fast: if the list is structurally modified at any time after the iterator is created, in any way except through the iterator's own remove or add methods, the iterator will throw a Con...
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Go build: “Cannot find package” (even though GOPATH is set)

...e your foobar.go source file is not in a directory called foobar. go build and go install try to match directories, not source files. Set $GOPATH to a valid directory, e.g. export GOPATH="$HOME/go" Move foobar.go to $GOPATH/src/foobar/foobar.go and building should work just fine. Additional reco...
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Update Row if it Exists Else Insert Logic with Entity Framework

...or a while? For example, during the life of a Windows form? I normally try and clean up database objects to ensure minimum load on the database. Is there no problem waiting to destroy my EF context? – Jonathan Wood Apr 6 '11 at 2:16 ...
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Printf width specifier to maintain precision of floating-point value

...eventh = 1.0/7.0 results in the value below. Also shown are the preceding and following representable double floating point numbers. OneSeventh before = 0.1428571428571428 214571170656199683435261249542236328125 OneSeventh = 0.1428571428571428 49212692681248881854116916656494140625 OneSeven...
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Literal notation for Dictionary in C#?

I currently have a WebSocket between JavaScript and a server programmed in C#. In JavaScript, I can pass data easily using an associative array: ...
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Which is faster in Python: x**.5 or math.sqrt(x)?

... I've now run it 3 times on codepad.org and all three times a() was much faster than b(). – Jeremy Ruten Nov 29 '08 at 1:38 13 ...
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Difference between onCreateView and onViewCreated in Fragment

...d. So always use findViewById in onViewCreated(when view is fully created) and it also passes the view as parameter. onViewCreated is a make sure that view is fully created. onViewCreated android Documentation Called immediately after onCreateView(android.view.LayoutInflater, android.view.Vie...
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How to use gitignore command in git

I'm working first time on git. I have pushed my branch on github and it pushed all the library and documents into the github. Now what can I do and how can I use gitignore command to avoid the same mistake again. ...
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Webstorm: “Cannot Resolve Directory”

This is starting to bug me and I'd either like it turned off or fixed. So Webstorm has a sweet feature in it's HTML parser that will attempt to resolve directories in strings that are supposed to reference a file in your project. For example: ...
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Foreign Key to non-primary key

I have a table which holds data, and one of those rows needs to exist in another table. So, I want a foreign key to maintain referential integrity. ...