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Get last n lines of a file, similar to tail

I'm writing a log file viewer for a web application and for that I want to paginate through the lines of the log file. The items in the file are line based with the newest item on the bottom. ...
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“Conversion to Dalvik format failed with error 1” on external JAR

...cts selected below » select your project and click OK. That should work. It is also possible that you have a JAR file located somewhere in your project folders (I had copied the Admob JAR file into my src folder) and THEN added it as a Java Path Library. It does not show up under the Package Explo...
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Why can't Python find shared objects that are in directories in sys.path?

...IBRARY_PATH. Check if your LD_LIBRARY_PATH includes /usr/local/lib, and if it doesn't, add it and try again. Some more information (source): In Linux, the environment variable LD_LIBRARY_PATH is a colon-separated set of directories where libraries should be searched for first, before th...
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Django Template Variables and Javascript

... The {{variable}} is substituted directly into the HTML. Do a view source; it isn't a "variable" or anything like it. It's just rendered text. Having said that, you can put this kind of substitution into your JavaScript. <script type="text/javasc...
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Overload with different return type in Java?

Why is it not possible to overload a function just by changing the return type? Will that change in a future version of Java? ...
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Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]

I want to create a default value for an attribute by defining it in ActiveRecord. By default everytime the record is created, I want to have a default value for attribute :status . I tried to do this: ...
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MVC pattern on Android

Is it possible to implement the model–view–controller pattern in Java for Android? 21 Answers ...
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How can I send an inner to the bottom of its parent ?

... This is one way <div style="position: relative; width: 200px; height: 150px; border: 1px solid black;"> <div style="position: absolute; bottom: 0; width: 100%; ...
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Android Studio vs Eclipse + ADT Plugin? [closed]

...e for using IntelliJ over Android Studio is if you're using the Ultimate edition. It has a lot more plugins that you can use with the IDE. If you're using the Ultimate edition already and don't want to use two IDE's simultaneously, there is no reason to switch over to Android Studio (except bleeding...
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How do I check that multiple keys are in a dict in a single pass?

... +1, I like this better than Greg's answer because it's more concise AND faster (no building of irrelevant temporary list, AND full exploitation of short-circuiting). – Alex Martelli Aug 17 '09 at 2:34 ...