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Please enter a commit message to explain why this merge is necessary, especially if it merges an upd

... the file name (such as "Merge_feature01") and press Enter CtrlX to exit Now if you go to .git and you will find the file "Merge_feature01", that's the merge log actually. share | improve this ans...
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How to implement a ConfigurationSection with a ConfigurationElementCollection

...se "add" the default one but i changed it just for the sake of this post. Now all of our nested Elements have been implemented now we should aggregate all of those in a class which has to implement System.Configuration.ConfigurationSection CustomApplicationConfigSection public class CustomApplica...
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How to get current time and date in Android

...an (but no longer should - see below!) use android.text.format.Time: Time now = new Time(); now.setToNow(); From the reference linked above: The Time class is a faster replacement for the java.util.Calendar and java.util.GregorianCalendar classes. An instance of the Time class represe...
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What is scope/named_scope in rails?

...a collection. Sounds complicated? It isn't. Imagine this: You have Users. Now, some of those Users are subscribed to your newsletter. You marked those who receive a newsletter by adding a field to the Users Database (user.subscribed_to_newsletter = true). Naturally, you sometimes want to get those ...
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How to avoid reinstalling packages when building Docker image for Python projects?

...c66c7 As you can see above, this time docker uses cache during the build. Now, let's update requirements.txt: # requirements.txt pytest==2.3.4 ipython Below is the output of docker build: Sending build context to Docker daemon 5.12 kB Sending build context to Docker daemon Step 0 : FROM dockerf...
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Using Java 8's Optional with Stream::flatMap

... I don't think the api can change until Java 9 now. – assylias Mar 29 '14 at 11:42 5 ...
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Remove ActiveRecord in Rails 3

Now that Rails 3 beta is out, I thought I'd have a look at rewriting an app I have just started work on in Rails 3 beta, both to get a feel for it and get a bit of a head-start. The app uses MongoDB and MongoMapper for all of its models and therefore has no need for ActiveRecord. In the previous ver...
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What is an intuitive explanation of the Expectation Maximization technique? [closed]

...e could find the exact means if we wanted). This is, generally speaking, known as maximum likelihood estimation. Given some data, we compute the value of a parameter (or parameters) that best explains that data. Now imagine that we cannot see which value was sampled from which group. Everything lo...
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Use 'class' or 'typename' for template parameters? [duplicate]

...particularly clear, to be honest. in T::A *obj; the language, as far as I know, should parse the statement as a declaration because of the declaration rule: anything that looks like a declaration, even if it ambiguously looks like something else, should resolve into a declaration[0]. I also didn't f...
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Difference between a Message Broker and an ESB

... is the CLEAR demarcating difference between an Message Broker and an ESB? Now here I am trying to compare products, Websphere Broker and Mule ESB!! ...