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Deep cloning objects

...is to implement the ICloneable interface (described here, so I won't regurgitate), here's a nice deep clone object copier I found on The Code Project a while ago and incorporated it in our stuff. As mentioned elsewhere, it requires your objects to be serializable. using System; using System.IO; usin...
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Where is the Keytool application?

...control in android and I can't seem to understand how to run keytool . Is it installed with eclipse? I can't seem to find a download link. ...
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Xcode 4 hangs at “Attaching to (app name)”

...ode 4 and for some reason my app won't run in the simulator or iOS device. It was working perfectly in Xcode 3, but all of a sudden now when I press run the program stops at "Attaching to...". There doesn't seem to be any other info to help with this problem either. ...
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Get top n records for each group of grouped results

... Here is one way to do this, using UNION ALL (See SQL Fiddle with Demo). This works with two groups, if you have more than two groups, then you would need to specify the group number and add queries for each group: ( select * from mytable where `group` = 1 order by age desc ...
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How do I deploy Node.js applications as a single executable file? [duplicate]

Supposed I have written a Node.js application, and I now would like to distribute it. Of course, I want to make it easy for the user, hence I do not want him to install Node.js, run npm install and then manually type node app.js . ...
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Wait until all jQuery Ajax requests are done?

How do I make a function wait until all jQuery Ajax requests are done inside another function? 20 Answers ...
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What is the Difference Between Mercurial and Git?

I've been using git for some time now on Windows (with msysGit) and I like the idea of distributed source control. Just recently I've been looking at Mercurial (hg) and it looks interesting. However, I can't wrap my head around the differences between hg and git. ...
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Why should I not wrap every block in “try”-“catch”?

...ave always been of the belief that if a method can throw an exception then it is reckless not to protect this call with a meaningful try block. ...
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Using Java 8's Optional with Stream::flatMap

...or some very concise java code, but I have come across a seemingly-simple situation that is tricky to do concisely. 12 Answ...
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Checkout one file from Subversion

"It is not possible to check out a single file. The finest level of checkouts you can do is at the directory level." 19 Ans...