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Tool to read and display Java .class versions

...ou know of a tool that will search for .class files and then display their compiled versions? 9 Answers ...
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find() with nil when there are no records

... This has changed in rails 4, see this answer stackoverflow.com/a/26885027/1438478 for the new way to find an item by a specific attribute. – Fralcon Mar 26 '15 at 20:58 ...
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How does one capture a Mac's command key via JavaScript?

... it is not going to be captured by browsers as such. This is only for the command key on MacOS/keyboards. Unlike Shift/Alt/Ctrl, the Cmd (“Apple”) key is not considered a modifier key—instead, you should listen on keydown/keyup and record when a key is pressed and then depressed based on e...
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What is the most efficient string concatenation method in python?

... add a comment  |  64 ...
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How does the Java 'for each' loop work?

... Also see docs.oracle.com/javase/1.5.0/docs/guide/language/foreach.html that explain the foreach loop (when it was introduced) – PhoneixS Feb 27 '14 at 16:12 ...
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How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?

...one gave me for the same question: glob seems to work nicer: stackoverflow.com/questions/11267086/… – NoodleOfDeath Aug 10 '12 at 17:09 ...
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Java Byte Array to String to Byte Array

...ver I seem to try I end up getting a byte array which looks as follows... [91, 45, ...", because 91 is the byte value for [, so [91, 45, ... is the byte array of the string "[-45, 1, 16, ..." string. The method Arrays.toString() will return a String representation of the specified array; meaning th...
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How to verify Facebook access token?

... The officially supported method for this is: GET graph.facebook.com/debug_token? input_token={token-to-inspect} &access_token={app-token-or-admin-token} See the check token docs for more information. An example response is: { "data": { "app_id": 1384839195809...
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Add legend to ggplot2 line plot

...pe2) dd = melt(dd_sub, id=c("fecha")) All that's left is a simple ggplot command: ggplot(dd) + geom_line(aes(x=fecha, y=value, colour=variable)) + scale_colour_manual(values=c("red","green","blue")) Example plot sha...
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Adding a guideline to the editor in Visual Studio

...hanging the registry yourself: http://visualstudiogallery.msdn.microsoft.com/en-us/0fbf2878-e678-4577-9fdb-9030389b338c http://visualstudiogallery.msdn.microsoft.com/en-us/7f2a6727-2993-4c1d-8f58-ae24df14ea91 These are also part of the Productivity Power Tools, which includes many other very use...