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Can virtual functions have default parameters?

If I declare a base class (or interface class) and specify a default value for one or more of its parameters, do the derived classes have to specify the same defaults and if not, which defaults will manifest in the derived classes? ...
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Enabling ProGuard in Eclipse for Android

The new documentation on ProGuard for Android says to add a line to the default.properties file in the project home directory. However, on opening this file, I read at the top: ...
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Why should I use var instead of a type? [duplicate]

After I have installed ReSharper it demands(by warnings) that I use var whenever possible, for example 4 Answers ...
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Why is subtracting these two times (in 1927) giving a strange result?

...ng program, which parses two date strings referencing times 1 second apart and compares them: 10 Answers ...
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How can I archive git branches?

... the tag. It will effectively restore the branch from the tag. To archive and delete the branch: git tag archive/<branchname> <branchname> git branch -d <branchname> To restore the branch some time later: git checkout -b <branchname> archive/<branchname> The hist...
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How do I migrate an SVN repository with history to a new Git repository?

I read the Git manual, FAQ, Git - SVN crash course, etc. and they all explain this and that, but nowhere can you find a simple instruction like: ...
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leading zeros in rails

I have fields hr and min , both integers in my application. For hr field, if the user enters "1" I would like Rails to automatically pad it to "01" before saving it to the database. Also for the min field if the user enter "0" it should put in as "00". ...
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Sound alarm when code finishes

I am in a situation where my code takes extremely long to run and I don't want to be staring at it all the time but want to know when it is done. ...
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What is the purpose of .PHONY in a Makefile?

...e used to build files from other files. Make assumes its target is a file, and this makes writing Makefiles relatively easy: foo: bar create_one_from_the_other foo bar However, sometimes you want your Makefile to run commands that do not represent physical files in the file system. Good example...
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How can I find out the current route in Rails?

...ent_uri as "/my/test/path" To find out the route i.e. controller, action and params: path = ActionController::Routing::Routes.recognize_path "/your/path/here/" # ...or newer Rails versions: # path = Rails.application.routes.recognize_path('/your/path/here') controller = path[:controller] action...