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What exactly do “u” and “r” string flags do, and what are raw string literals?

... There's not really any "raw string"; there are raw string literals, which are exactly the string literals marked by an 'r' before the opening quote. A "raw string literal" is a slightly different syntax for a string literal, in which a ba...
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The difference between Classes, Objects, and Instances

...he set of values that is the type Y. So that's what the term "instance" really means: it describes a relationship not a thing. The type system of the Java programming language supports two kinds of types, primitive types and reference types. The reference types are further divided into the classe...
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How do I determine whether an array contains a particular value in Java?

...h FindBugs will tell you is very naughty. Do not modify statics and do not allow other code to do so also. At an absolute minimum, the field should be private: private static final String[] VALUES = new String[] {"AB","BC","CD","AE"}; (Note, you can actually drop the new String[]; bit.) Reference a...
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What uses are there for “placement new”?

... Placement new allows you to construct an object in memory that's already allocated. You may want to do this for optimization when you need to construct multiple instances of an object, and it is faster not to re-allocate memory each time y...
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Iterate a list with indexes in Python

... of for i in range(len(name_of_list)): which is what led me to provide an example using a for instead of what was shown in the first part. – Vinko Vrsalovic Sep 27 '12 at 9:29 1 ...
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A definitive guide to API-breaking changes in .NET

... information as possible regarding API versioning in .NET/CLR, and specifically how API changes do or do not break client applications. First, let's define some terms: ...
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Disable vertical scroll bar on div overflow: auto

Is it possible to allow only a horizontal scroll bar when using overflow:auto (or scroll)? 8 Answers ...
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Rails: Using greater than/less than with a where statement

I'm trying to find all Users with an id greater than 200, but I'm having some trouble with the specific syntax. 9 Answers ...
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Python's “in” set operator

... Yes, but it also means hash(b) == hash(x), so equality of the items isn't enough to make them the same. share | improve this answer | foll...
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Invalid postback or callback argument. Event validation is enabled using '

... One more option: implement IPostBackEventHandler and call js __doPostBack('<%= UniqueId.ToString() %>',arg) – gdbdable May 22 '14 at 7:11 ...