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Random record from MongoDB
I am looking to get a random record from a huge (100 million record) mongodb .
26 Answers
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How do I break out of a loop in Scala?
How do I break out a loop?
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std::string formatting like sprintf
I have to format std::string with sprintf and send it into file stream. How can I do this?
40 Answers
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How to print (using cout) a number in binary form?
I'm following a college course about operating systems and we're learning how to convert from binary to hexadecimal, decimal to hexadecimal, etc. and today we just learned how signed/unsigned numbers are stored in memory using the two's complement (~number + 1).
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Why does Stream not implement Iterable?
In Java 8 we have the class Stream<T> , which curiously have a method
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Facebook database design?
I have always wondered how Facebook designed the friend user relation.
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How to validate phone numbers using regex
I'm trying to put together a comprehensive regex to validate phone numbers. Ideally it would handle international formats, but it must handle US formats, including the following:
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How do I convert CamelCase into human-readable names in Java?
I'd like to write a method that converts CamelCase into a human-readable name.
12 Answers
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What is a Python egg?
I'm new to Python and am just trying to understand how its packages work. Presumably "eggs" are some sort of packaging mechanism, but what would be a quick overview of what role they play and may be some information on why they're useful and how to create them?
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Struct like objects in Java
Is it completely against the Java way to create struct like objects?
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