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How do I uniquely identify computers visiting my web site?

I need to figure out a way uniquely identify each computer which visits the web site I am creating. Does anybody have any advice on how to achieve this? ...
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First-time database design: am I overengineering? [closed]

I'm a first year CS student and I work part time for my dad's small business. I don't have any experience in real world application development. I have written scripts in Python, some coursework in C, but nothing like this. ...
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How to create a windows service from java app

I've just inherited a java application that needs to be installed as a service on XP and vista. It's been about 8 years since I've used windows in any form and I've never had to create a service, let alone from something like a java app (I've got a jar for the app and a single dependency jar - log4j...
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What does “to stub” mean in programming?

For example, what does it mean in this quote? 9 Answers 9 ...
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How would you make a comma-separated string from a list of strings?

What would be your preferred way to concatenate strings from a sequence such that between every two consecutive pairs a comma is added. That is, how do you map, for instance, ['a', 'b', 'c'] to 'a,b,c' ? (The cases ['s'] and [] should be mapped to 's' and '' , respectively.) ...
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Which Java Collection should I use?

In this question How can I efficiently select a Standard Library container in C++11? is a handy flow chart to use when choosing C++ collections. ...
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What issues should be considered when overriding equals and hashCode in Java?

What issues / pitfalls must be considered when overriding equals and hashCode ? 11 Answers ...
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Can unit testing be successfully added into an existing production project? If so, how and is it wor

I'm strongly considering adding unit testing to an existing project that is in production. It was started 18 months ago before I could really see any benefit of TDD (face palm) , so now it's a rather large solution with a number of projects and I haven't the foggiest idea where to start in adding u...
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How can you dynamically create variables via a while loop? [duplicate]

I want to create variables dynamically via a while loop in Python. Does anyone have any creative means of doing this? 8 Ans...
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How to kill a child process after a given timeout in Bash?

I have a bash script that launches a child process that crashes (actually, hangs) from time to time and with no apparent reason (closed source, so there isn't much I can do about it). As a result, I would like to be able to launch this process for a given amount of time, and kill it if it did not re...