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Separate Back Stack for each tab in Android using Fragments

I'm trying to implement tabs for navigation in an Android app. Since TabActivity and ActivityGroup are deprecated I would like to implement it using Fragments instead. ...
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What Ruby IDE do you prefer? [closed]

I've been using Eclipse with RDT (not RadRails) a lot lately, and I'm quite happy with it, but I'm wondering if you guys know any decent alternatives. I know NetBeans also supports Ruby these days, but I'm not sure what it has to offer over Eclipse. ...
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What is the difference between Serializable and Externalizable in Java?

What is the difference between Serializable and Externalizable in Java? 11 Answers ...
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How to color System.out.println output? [duplicate]

... No, but there are third party API's that can handle it http://www.javaworld.com/javaworld/javaqa/2002-12/02-qa-1220-console.html Edit: of course there are newer articles than that one I posted, the information is still viable though. ...
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How do I update a Linq to SQL dbml file?

...to keep the model in sync. Delete the modified tables from the designer, and drag them back onto the designer surface from the Database Explorer. I have found that, for this to work reliably, you have to: a. Refresh the database schema in the Database Explorer (right-click, refresh) b. Save th...
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Using an ORM or plain SQL? [closed]

... ORMs have some nice features. They can handle much of the dog-work of copying database columns to object fields. They usually handle converting the language's date and time types to the appropriate database type. They generally handle one-to-many relationships pret...
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Difference between StringBuilder and StringBuffer

What is the main difference between StringBuffer and StringBuilder ? Is there any performance issues when deciding on any one of these? ...
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Python - doctest vs. unittest [closed]

I'm trying to get started with unit testing in Python and I was wondering if someone could explain the advantages and disadvantages of doctest and unittest. ...
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Java: Difference between PrintStream and PrintWriter

What is the difference between PrintStream and PrintWriter ? They have many methods in common due to which I often mix these two classes up. Moreover, I think we can use them for exactly the same things. But there has to be a difference, otherwise, there would have been only one class. ...
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How to debug a bash script? [closed]

...s, for x.) Also, shells generally provide options '-n' for 'no execution' and '-v' for 'verbose' mode; you can use these in combination to see whether the shell thinks it could execute your script — occasionally useful if you have an unbalanced quote somewhere. There is contention that the '-x...