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Should I instantiate instance variables on declaration or in the constructor?
Is there any advantage for either approach?
15 Answers
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Beginner's guide to ElasticSearch [closed]
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How to delete every other line in Vim?
I would like to delete every other line from a Vim buffer, starting with the second one, i.e., lines 2, 4, 6, etc. For example, if the buffer’s contents is:
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Reflection generic get field value
I am trying to receive field value via reflection. The problem is I don't know the fields type and have to decide it while getting the value.
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Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?
I have always seen people write
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Is there a way to instantiate a class by name in Java?
I was looking as the question : Instantiate a class from its string name which describes how to instantiate a class when having its name. Is there a way to do it in Java? I will have the package name and class name and I need to be able to create an object having that particular name.
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Pythonic way to check if a file exists? [duplicate]
Which is the preferred way to check if a file exists and if not create it?
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