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Why do we need the “event” keyword while defining events?

I don't understand why do we need the "event" keyword while defining events, when we can do the same thing without using "event" keyword, just by using the delegates. ...
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How to print instances of a class using print()?

...(t) member of Test The __str__ method is what happens when you print it, and the __repr__ method is what happens when you use the repr() function (or when you look at it with the interactive prompt). If this isn't the most Pythonic method, I apologize, because I'm still learning too - but it works...
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Java, List only subdirectories from a directory, not files

...ectly list the subdirectory from the directory. B'coz I have lots of files and only few subdirectory in a directory so, checking isDirectory() is time consuming. please reply me another way. – Lokesh Paunikar Feb 26 '11 at 5:51 ...
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A TwoWay or OneWayToSource binding cannot work on the read-only property

I've a read only property I need to display in a textbox, and getting this error at runtime. I've set IsEnabled="False" , IsReadOnly="True" - no luck. Other searches say the readonly should fix it, but not for me. I've got an ugly workaround by adding a dummy setter... ...
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How to sort a HashSet?

...ements sorted for this one occurrence, then just temporarily create a List and sort that: Set<?> yourHashSet = new HashSet<>(); ... List<?> sortedList = new ArrayList<>(yourHashSet); Collections.sort(sortedList); ...
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Access “this” from Java anonymous class

... I didn't know even this keywords could be differentiated just as methods and attributes can. +1 – logo_writer Jun 6 '16 at 6:50 ...
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Which selector do I need to select an option by its text?

...xt="B"]').val(); Demo fiddle This would give you the option with text B and not the ones which has text that contains B. Hope this helps For recent versions of jQuery the above does not work. As commented by Quandary below, this is what works for jQuery 1.9.1: $('#test option').filter(function ...
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How to search a Git repository by commit message?

...-all) to show all instances of the given text, the containing file name, and the commit sha1. Finally, as a last resort in case your commit is dangling and not connected to history at all, you can search the reflog itself with the -g flag (short for --walk-reflogs: git log -g --grep='Build 0051'...
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Specifying Style and Weight for Google Fonts

I am using Google fonts in a few of my pages and hit a wall when trying to use variations of a font. Example: http://www.google.com/webfonts#QuickUsePlace:quickUse/Family:Open+Sans ...
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How do I replace the *first instance* of a string in .NET?

... since it's utilizing a full featured parser where my method does one find and three string concatenations. EDIT2: If this is a common task, you might want to make the method an extension method: public static class StringExtension { public static string ReplaceFirst(this string text, string sea...