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How do you properly use namespaces in C++?
...namespace MyNamespace;
MyClass* pClass = new MyClass();
Edit: Following what bernhardrusch has said, I tend not to use the "using namespace x" syntax at all, I usually explicitly specify the namespace when instantiating my objects (i.e. the first example I showed).
And as you asked below, you ca...
How do servlets work? Instantiation, sessions, shared variables and multithreading
...st.getParameter("foo"); // OK, this is thread safe.
}
}
See also:
What is the difference between JSF, Servlet and JSP?
Best option for Session management in Java
Difference between / and /* in servlet mapping url pattern
doGet and doPost in Servlets
Servlet seems to handle multiple concurre...
What are the differences between json and simplejson Python modules?
I have seen many projects using simplejson module instead of json module from the Standard Library. Also, there are many different simplejson modules. Why would use these alternatives, instead of the one in the Standard Library?
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Check if a temporary table exists and delete if it exists before creating a temporary table
...n later, it will give an error saying "invalid column". Please let me know what I am doing wrong.
15 Answers
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Import package.* vs import package.SpecificType [duplicate]
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@Chris What is the effect of the use of import a.b.* on compilation time?
– saurabheights
Jan 16 '17 at 11:44
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How do I revert a Git repository to a previous commit?
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This depends a lot on what you mean by "revert".
Temporarily switch to a different commit
If you want to temporarily go back to it, fool around, then come back to where you are, all you have to do is check out the desired commit:
# This will detac...
Creating a temporary directory in Windows?
What's the best way to get a temp directory name in Windows? I see that I can use GetTempPath and GetTempFileName to create a temporary file, but is there any equivalent to the Linux / BSD mkdtemp function for creating a temporary directory?
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Convert an image to grayscale in HTML/CSS
...ilter: none;
}
<img src="http://lorempixel.com/400/200/">
What about Internet Explorer 10?
You can use a polyfill like gray.
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PyLint, PyChecker or PyFlakes? [closed]
...asking the question ;-)
Ok, this is not a very serious review but here is what I can say :
I tried the tools with the default settings (it's important because you can pretty much choose your check rules) on the following script :
#!/usr/local/bin/python
# by Daniel Rosengren modified by e-satis
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Can iterators be reset in Python?
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This was what my theory told me, nice to see that what I thought should happen, does.
– Wayne Werner
Jul 16 '10 at 18:02
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