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Why would you use Expression rather than Func?

...ment and submits it to server (rather than executing the lambda). Conceptually, Expression<Func<T>> is completely different from Func<T>. Func<T> denotes a delegate which is pretty much a pointer to a method and Expression<Func<T>> denotes a tree data structure f...
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Get nested JSON object with GSON using retrofit

I'm consuming an API from my android app, and all the JSON responses are like this: 12 Answers ...
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Catching an exception while using a Python 'with' statement

... print 'oops' If you want different handling for errors from the open call vs the working code you could do: try: f = open('foo.txt') except IOError: print('error') else: with f: print f.readlines() ...
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Effect of a Bitwise Operator on a Boolean in Java

... mobmob 108k1717 gold badges137137 silver badges263263 bronze badges 2 ...
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How is a CRC32 checksum calculated?

... 1 0000 0100 1100 0001 0001 1101 1011 0111 The highest term (x32) is usually not explicitly written, so it can instead be represented in hex just as 0x 04 C1 1D B7 Feel free to count the 1s and 0s, but you'll find they match up with the polynomial, where 1 is bit 0 (or the first bit) and x ...
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Extension methods must be defined in a non-generic static class

...lic static Byte[] ToByteArray(this Stream stream) { Int32 length = stream.Length > Int32.MaxValue ? Int32.MaxValue : Convert.ToInt32(stream.Length); Byte[] buffer = new Byte[length]; stream.Read(buffer, 0, length); return buffer; } ...
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How can I get every nth item from a List?

... answered Mar 25 '09 at 17:32 Quintin RobinsonQuintin Robinson 74.4k1414 gold badges115115 silver badges130130 bronze badges ...
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enum.values() - is an order of returned enums deterministic

...och is right about not relying on the ordinal and if the asker's example really involves enums like EN_TWO then he is relying on the ordinal and shouldn't do this. But to rely on the order is perfectly fine. In fact, as order is guaranteed, to create a field specifically for order would be writing r...
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How to add minutes to my Date

... | edited Nov 7 '15 at 17:32 Christian Vielma 11.5k1111 gold badges4848 silver badges5757 bronze badges ...
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Delete all data in SQL Server database

How I can delete all records from all tables of my database? Can I do it with one SQL command or I need for one SQL command per one table? ...