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Are static methods inherited in Java?
...c and protected members of its parent, no matter what package the subclass is in. If the subclass is in the same package as its parent, it also inherits the package-private members of the parent. You can use the inherited members as is, replace them, hide them, or supplement them with new members
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Why do we need RESTful Web Services?
...g to learn RESTful web services (it's better to say that I'll have to do this because it's a part of CS master degree program).
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When does invoking a member function on a null instance result in undefined behavior?
...behavior to call a member function through a null pointer. If the function is static, it's technically undefined as well, but there's some dispute.
The first thing to understand is why it's undefined behavior to dereference a null pointer. In C++03, there's actually a bit of ambiguity here.
Alth...
decimal vs double! - Which one should I use and when? [duplicate]
...ing doubles in C#. I know I read somewhere that doubles sometimes lose precision.
My question is when should a use a double and when should I use a decimal type?
Which type is suitable for money computations? (ie. greater than $100 million)
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Is it faster to count down than it is to count up?
Our computer science teacher once said that for some reason it is more efficient to count down than to count up.
For example if you need to use a FOR loop and the loop index is not used somewhere (like printing a line of N * to the screen)
I mean that code like this:
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How do I remove/delete a folder that is not empty?
I am getting an 'access is denied' error when I attempt to delete a folder that is not empty. I used the following command in my attempt: os.remove("/folder_name") .
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Optimizing away a “while(1);” in C++0x
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Does someone have a good explanation of why this was necessary to allow?
Yes, Hans Boehm provides a rationale for this in N1528: Why undefined behavior for infinite loops?, although this is WG14 document the rationale applies to C++ as well and the document refers to b...
Is there a reason for C#'s reuse of the variable in a foreach?
...declares the variable in a way that makes it highly prone to an error that is often difficult to find and debug, while producing no perceivable benefits.
Your criticism is entirely justified.
I discuss this problem in detail here:
Closing over the loop variable considered harmful
Is there so...
Reference: What is variable scope, which variables are accessible from where and what are “undefined
What is "variable scope" in PHP? Are variables from one .php file accessible in another? Why do I sometimes get "undefined variable" errors?
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Which is a better way to check if an array has more than one element?
...ed to check if an array has more than one element.
I am trying to do it this way :
11 Answers
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