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Why should a Java class implement comparable?

Why is Java Comparable used? Why would someone implement Comparable in a class? What is a real life example where you need to implement comparable? ...
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Rails 3: Get Random Record

So, I've found several examples for finding a random record in Rails 2 -- the preferred method seems to be: 14 Answers ...
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Bower: ENOGIT Git is not installed or not in the PATH

Git is installed and is in the path. 16 Answers 16 ...
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Partial classes in separate dlls

...ble to have two parts (same namespace, same class name) to a partial class in separate DLLs? 7 Answers ...
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How do I put the image on the right side of the text in a UIButton?

... avoid it. I want a UIButton with a background image, text, and an image in it. Right now, when I do that, the image is on the left side of the text. The background image, text, and image all have different highlight states. ...
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How do I subtract minutes from a date in javascript?

How can I translate this pseudo code into working js [don't worry about where the end date comes from except that it's a valid javascript date]. ...
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Force R not to use exponential notation (e.g. e+10)?

Can I force R to use regular numbers instead of using the e+10 -like notation? I have: 4 Answers ...
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Can a decorator of an instance method access the class?

I have something roughly like the following. Basically I need to access the class of an instance method from a decorator used upon the instance method in its definition. ...
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Associating enums with strings in C#

I know the following is not possible because the Enumeration's type has to be an int 32 Answers ...
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Only read selected columns

...rst 6 months (7 columns) for each year of the data below, for example by using read.table() ? 4 Answers ...