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How to modify a global variable within a function in bash?
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Most efficient way to cast List to List
I have a List<SubClass> that I want to treat as a List<BaseClass> . It seems like it shouldn't be a problem since casting a SubClass to a BaseClass is a snap, but my compiler complains that the cast is impossible.
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SVN Error - Not a working copy
Recently our svn server was changed and we did a svn switch.
22 Answers
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How to convert a std::string to const char* or char*?
How can I convert an std::string to a char* or a const char* ?
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JPA : How to convert a native query result set to POJO class collection
I am using JPA in my project.
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What are C++ functors and their uses?
I keep hearing a lot about functors in C++. Can someone give me an overview as to what they are and in what cases they would be useful?
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How to choose the right bean scope?
I noticed that there are different bean scopes like:
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Why doesn't Java allow overriding of static methods?
Why is it not possible to override static methods?
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What does the “at” (@) symbol do in Python?
I'm looking at some Python code which used the @ symbol, but I have no idea what it does. I also do not know what to search for as searching Python docs or Google does not return relevant results when the @ symbol is included.
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Handling a colon in an element ID in a CSS selector [duplicate]
JSF is setting the ID of an input field to search_form:expression . I need to specify some styling on that element, but that colon looks like the beginning of a pseudo-element to the browser so it gets marked invalid and ignored. Is there anyway to escape the colon or something?
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