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What is the difference between class and instance attributes?
Is there any meaningful distinction between:
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How does Junit @Rule work?
I want to write test cases for a bulk of code, I would like to know details of JUnit @Rule annotation feature, so that I can use it for writing test cases. Please provide some good answers or links, which give detailed description of its functionality through a simple example.
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Renaming table in rails
I want to rename a table... (any table.)
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Defining a function with multiple implicit arguments in Scala
How can I define a function with multiple implicit arguments.
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How can I scale an entire web page with CSS?
Using Firefox, you can enlarge an entire web page by simply pressing CTRL + . What this does is proportionally enlarge the entire web page (fonts, images, etc).
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Is it unnecessary to put super() in constructor?
Isn't this one automatically put by the compiler if I don't put it in a subclass's constructor?
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How can I create a correlation matrix in R?
I have 92 set of data of same type.
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How do I enumerate through a JObject?
I'm trying to determine how to access the data that is in my JObject and I can't for the life of me determine how to use it.
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Execute and get the output of a shell command in node.js
In a node.js, I'd like to find a way to obtain the output of a Unix terminal command. Is there any way to do this?
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Clojure: cons (seq) vs. conj (list)
I know that cons returns a seq and conj returns a collection. I also know that conj "adds" the item to the optimal end of the collection, and cons always "adds" the item to the front. This example illustrates both of these points:
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