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What causes javac to issue the “uses unchecked or unsafe operations” warning
...yList<String>();
In Java 7 you can shorten generic instantiation by using Type Inference.
List<String> myList = new ArrayList<>();
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How do I turn off Oracle password expiration?
...er account. It should never expire again:
alter user user_name identified by new_password account unlock;
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What is resource-ref in web.xml used for?
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You can always refer to resources in your application directly by their JNDI name as configured in the container, but if you do so, essentially you are wiring the container-specific name into your code. This has some disadvantages, for example, if you'll ever want to change the name late...
Best way to load module/class from lib folder in Rails 3?
...ries there's a gotcha or a convention you should be aware. Sometimes the Ruby/Rails magic (this time mostly Rails) can make it difficult to understand why something is happening. Any module declared in the autoload paths will only be loaded if the module name corresponds to the parent directory name...
Renaming a branch while on pull request
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"Renaming" a remote branch in git, as indicated by the link you provided, is really just deleting a branch, followed by pushing a new one with the same commit hash but a new name. If you have a pull request open for branch patch-1, when you delete that branch, the pull re...
Will Try / Finally (without the Catch) bubble the exception?
... could go wrong.
First, access to the resource could already be disabled by the caller; in that case, this code re-enables it, possibly prematurely.
Second, if DoSomethingToTheResource throws an exception, is the right thing to do to enable access to the resource??? The code that manages the reso...
What is the benefit of using Fragments in Android, rather than Views?
...e. I didn't think it was conceptually possible, but they worked around it by using a private FragmentManager through getChildFragmentManager(). Oh, and it is API 17, not 11, and available through the Support Library.
– Henry
Jul 24 '13 at 8:29
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How to create a css rule for all elements except one class?
... are looking for.
table:not(.dojoxGrid) {color:red;}
It's not supported by ≤ IE8 though.
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How do I get ruby to print a full backtrace instead of a truncated one?
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Exception#backtrace has the entire stack in it:
def do_division_by_zero; 5 / 0; end
begin
do_division_by_zero
rescue => exception
puts exception.backtrace
raise # always reraise
end
(Inspired by Peter Cooper's Ruby Inside blog)
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What happens to global and static variables in a shared library when it is dynamically linked?
...th globals and static variables are dynamically linked to an application.
By modules, I mean each project in a solution (I work a lot with visual studio!). These modules are either built into *.lib or *.dll or the *.exe itself.
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