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What order are the Junit @Before/@After called?
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How do I list all files of a directory?
...reates a new list in a new memory location. This means extend is generally more efficient than +, but it can sometimes lead to confusion if multiple objects hold references to the list. Lastly, it's worth noting that f += filenames is equivalent to f.extend(filenames), not f = f + filenames.
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Using do block vs braces {}
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This is a bit old question but I would like to try explain a bit more about {} and do .. end
like it is said before
bracket syntax has higher precedence order than do..end
but how this one makes difference:
method1 method2 do
puts "hi"
end
in this case, method1 will be called...
How can I easily convert DataReader to List? [duplicate]
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Django queries - id vs pk
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It doesn't matter. pk is more independent from the actual primary key field i.e. you don't need to care whether the primary key field is called id or object_id or whatever.
It also provides more consistency if you have models with different primary ...
Why doesn't Java allow overriding of static methods?
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This answer, while correct, is more akin to "how it is" rather than how it should be or more accurately how it could be in order to meet the expectations of the OP and, hence here, myself and others. There is no concrete reason to disallow the overriding o...
What is the benefit of using “SET XACT_ABORT ON” in a stored procedure?
... Except for client timeouts... and my view is the SET XACT_ABORT is more effective in SQL 2005 because behaviour is more predictable: far fewer batch aborting errors.
– gbn
Jul 19 '09 at 17:22
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How do I analyze a program's core dump file with GDB when it has command-line parameters?
...l of it must also be visible through GDB, but those binutils tools offer a more bulk approach which is convenient for certain use cases, while GDB is more convenient for a more interactive exploration.
First:
file core
tells us that the core file is actually an ELF file:
core: ELF 64-bit LSB co...
Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
... that out. In fact, now that I think about it, it probably would have made more sense for me to give an example from the standpoint of a client, rather than the programmer himself. In both cases, using List list = new ArrayList() is a matter of ensuring that you don't break existing code.
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