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Why does Math.Round(2.5) return 2 instead of 3?

In C#, the result of Math.Round(2.5) is 2. 15 Answers 15 ...
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How to directly initialize a HashMap (in a literal way)?

Is there some way of initializing a Java HashMap like this?: 14 Answers 14 ...
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How does python numpy.where() work?

I am playing with numpy and digging through documentation and I have come across some magic. Namely I am talking about numpy.where() : ...
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Contains method for a slice

Is there anything similar to a slice.contains(object) method in Go without having to do a search through each element in a slice? ...
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Is it worth hashing passwords on the client side

When I want to put a login system in place, I always compare the MD5 of the given password with its value in the users table on the server side. ...
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When and how should I use a ThreadLocal variable?

When should I use a ThreadLocal variable? 25 Answers 25 ...
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Where can I learn jQuery? Is it worth it?

I've had a lot of good experiences learning about web development on w3schools.com . It's hit or miss, I know, but the PHP and CSS sections specifically have proven very useful for reference. ...
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Do spurious wakeups in Java actually happen?

Seeing various locking related question and (almost) always finding the 'loop because of spurious wakeups' terms 1 I wonder, has anyone experienced such kind of a wakeup (assuming a decent hardware/software environment for example)? ...
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sql primary key and index

Say I have an ID row (int) in a database set as the primary key. If I query off the ID often do I also need to index it? Or does it being a primary key mean it's already indexed? ...
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Display a tooltip over a button using Windows Forms

How can I display a tooltip over a button using Windows Forms ? 9 Answers 9 ...