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Inner class within Interface

...d class is static, so it cannot be "static inner"). Anyway, the following compiles fine: public interface A { class B { } } I've seen it used to put some kind of "contract checker" directly in the interface definition (well, in the class nested in the interface, that can have static meth...
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Convert a series of parent-child relationships into a hierarchical tree?

I have a bunch of name-parentname pairs, that I'd like to turn into as few heirarchical tree structures as possible. So for example, these could be the pairings: ...
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How to refer environment variable in POM.xml?

... <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <!-- define --> <properties> <property.name>1.0</pr...
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IEnumerable to string [duplicate]

...umentation (and it actually does). Sure this gives you a builtin way to accomplish this task, but it could be done better. I don't think there are any implementations within the framework that will special case char so you'll have to implement it. A simple loop appending characters to a string bu...
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Round double in two decimal places in C#?

...is would round mid point numbers to the nearest even number docs.microsoft.com/en-us/dotnet/api/… – rdans Sep 8 at 12:17 add a comment  |  ...
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private[this] vs private

...actual reason is declaration-site variance (see this answer: stackoverflow.com/a/9727849/445715). – Andrey Breslav Aug 24 '14 at 9:24 1 ...
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Using R to download zipped data file, extract, and import data

...t this is simpler) looks like temp <- tempfile() download.file("http://www.newcl.org/data/zipfiles/a1.zip",temp) data <- read.table(unz(temp, "a1.dat")) unlink(temp) Compressed (.z) or gzipped (.gz) or bzip2ed (.bz2) files are just the file and those you can read directly from a connection....
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What is the difference between “text” and new String(“text”)?

What is the difference between these two following statements? 12 Answers 12 ...
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Best timestamp format for CSV/Excel?

...not very good with fractions of a second (loses them when interacting with COM object IIRC). share | improve this answer | follow | ...
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Where does the .gitignore file belong?

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