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What's the difference between HEAD, working tree and index, in Git?
... 1 -> 2 -> 3 -> 4 where 1 is the first commit and 4 is the last)
Now we know what is happening in the project.
But to know what is happening right here, right now there is a special reference called HEAD. It serves two major purposes:
it tells Git which commit to take files from when yo...
Unignore subdirectories of ignored directories in Git
...fic example refers to a global gitignore which I should have mentioned. I know I can force add items, but I'll have to do that if any new items are added, as well as initially for each new repository. Does the .keep ensure the contents are not ignored?
– Wil
Ma...
How can I make git accept a self signed certificate?
...
@Flow -- I completely concur. I've edited this (now quite old) answer to be more polemical about disabling TLS/SSL cert verification.
– Christopher
Aug 17 '15 at 19:01
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org.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for
... @Arthur Ronald F D Garcia: Thanks, it worked great. But, the program is now stopped by new one. object references an unsaved transient instance - save the transient instance before flushing Do you aware of this error. If not just leave it. I am searching.
– user405398
...
Why maven? What are the benefits? [closed]
...for it in your
dependency management... there is no
'I'll just do this now and fix it
later' implementations.
Dependency Management is clearly declared. with the dependency
management mechanism you have to try
to screw up your jar
versioning...there is none of the
classic problem of ...
Catch multiple exceptions at once?
It is discouraged to simply catch System.Exception . Instead, only the "known" exceptions should be caught.
27 Answers
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In what cases do I use malloc and/or new?
... or throw ...
}
return new (mem)T(std::forward(args)...);
}
};
Now though in fixing all the issues we identified so far we've practically reinvented the default new operator. If you're going to use malloc and placement new then you might as well just use new to begin with!
...
What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?
...= new B();" After compilation, I removed the B.class file from bin folder. Now from Main method of third class when I create object of Class1. The rror is thown as follws :-------- "Exception in thread "main" java.lang.NoClassDefFoundError: spring/B" ........ So it exactly mentiones which class it d...
What is the equivalent of the C# 'var' keyword in Java?
...es had names, even if they were extremely verbose and unweildy). I do not know if this has changed in the mean time.
var is not the same as dynamic. variables are still 100% statically typed. This will not compile:
var myString = "foo";
myString = 3;
var is also useful when the type is obvious fro...
How can I save an image to the camera roll?
...r your patience qegal. I haven't had a chance to revisit this issue until now. Your EDIT us super helpful. The image is in the app's bundle. There are several images in the app and they can be viewed as small thumbnails. When a small thumbnail is selected it goes to a new view and a fullscreen v...