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How find all unused classes in Intellij Idea?
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Press Ctrl+Shift+A (in Mac Command+Shift+A)
Enter "unused declar"
Double-click on "Unused declaration"
Settings will pop up
Click on Java/Declaration redundancy/Unused declaration
on the right bottom select "On the fly editor settings"
untick check...
Django ModelForm: What is save(commit=False) used for?
Why would I ever use save(commit=False) instead of just creating a form object from the ModelForm subclass and running is_valid() to validate both the form and model?
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Match multiple cases classes in scala
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How to version REST URIs
... This has been answered in a greater detail before here stackoverflow.com/q/389169/104261
– Taras Alenin
May 4 '12 at 0:36
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What is the dependency inversion principle and why is it important?
...n on which both A and B now depend only means that A will no longer have a compile-time dependency on the public interface of B. Isolation between units can be achieved easily without these extra abstractions; there are specific mocking tools for that, in Java and .NET, that deal with all situations...
Make $JAVA_HOME easily changable in Ubuntu [closed]
...run this manually every time is to modify your .bashrc file to include the command "source /etc/environment"
– nityan
Jan 8 '14 at 1:54
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Compiling C++11 with g++
I'm trying to update my C++ compiler to C++11.
I have searched a bit and I have come to the conclusion that I have to use the flag -std=c++0x or -std=gnu++0x , but I don't know many things about flags. Can anyone help me? (I'm using Ubuntu 12.04.)
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Expand/collapse section in UITableView in iOS
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What are all the valid self-closing elements in XHTML (as implemented by the major browsers)?
...d as
text/html should be treated as HTML and not as XHTML.
It's a very common pitfall, because W3C Validator largely ignores that rule, but browsers follow it religiously. Read
Understanding HTML, XML and XHTML from WebKit blog:
In fact, the vast majority of supposedly XHTML documents on th...
Why does an NSInteger variable have to be cast to long when used as a format argument?
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You get this warning if you compile on OS X (64-bit), because on that platform NSInteger is defined as long and is a 64-bit integer. The %i format, on the other hand, is for int, which is 32-bit. So the format and the actual parameter do not match in si...