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How to create a generic array in Java?
Due to the implementation of Java generics, you can't have code like this:
31 Answers
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How do I parallelize a simple Python loop?
...eads on CPython won't give you better performance for pure-Python code due to the global interpreter lock (GIL). I suggest using the multiprocessing module instead:
pool = multiprocessing.Pool(4)
out1, out2, out3 = zip(*pool.map(calc_stuff, range(0, 10 * offset, offset)))
Note that this won't wo...
Best exception for an invalid generic type argument
...ntly writing some code for UnconstrainedMelody which has generic methods to do with enums.
11 Answers
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How do I run a shell script without using “sh” or “bash” commands?
I have a shell script which I want to run without using the "sh" or "bash" commands. For example:
11 Answers
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Convert list of dictionaries to a pandas DataFrame
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How do I convert a list of dictionaries to a pandas DataFrame?
The other answers are correct, but not much has been explained in terms of advantages and limitations of these methods. The aim of this post will be to show examples of these methods under different si...
Why is there no String.Empty in Java?
...ou can first get an empty String, and perform some operations on it - best to use a StringBuilder (or StringBuffer if you want to be thread-safe) and turn that into a String.
Update
From your comment to the question:
What inspired this is actually
TextBox.setText("");
I believe it would be ...
Dependency injection with Jersey 2.0
...ny previous Jersey 1.x knowledge, I'm having a hard time understanding how to setup dependency injection in my Jersey 2.0 project.
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C++, variable declaration in 'if' expression
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As of C++17 what you were trying to do is finally possible:
if (int a = Func1(), b = Func2(); a && b)
{
// Do stuff with a and b.
}
Note the use of ; of instead of , to separate the declaration and the actual condition.
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Hibernate openSession() vs getCurrentSession()
...t, 1 and 2 are related. If you set hibernate.current_session_context_class to thread and then implement something like a servlet filter that opens the session - then you can access that session anywhere else by using the SessionFactory.getCurrentSession().
SessionFactory.openSession() always opens ...
Problems with Android Fragment back stack
...ve got a massive problem with the way the android fragment backstack seems to work and would be most grateful for any help that is offered.
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