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How to round an average to 2 decimal places in PostgreSQL?
I am using PostgreSQL via the Ruby gem 'sequel'.
8 Answers
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High Quality Image Scaling Library [closed]
I want to scale an image in C# with quality level as good as Photoshop does. Is there any C# image processing library available to do this thing?
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How to get a list of user accounts using the command line in MySQL?
I'm using the MySQL command line utility and can navigate through a database. Now I need to see a list of user accounts. How can I do this?
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How do you compare two version Strings in Java?
Is there a standard idiom for comparing version numbers? I can't just use a straight String compareTo because I don't know yet what the maximum number of point releases there will be. I need to compare the versions and have the following hold true:
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How to make an element width: 100% minus padding?
I have an html input.
14 Answers
14
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How to read all files in a folder from Java?
How to read all the files in a folder through Java?
31 Answers
31
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Is it possible to serialize and deserialize a class in C++?
Is it possible to serialize and deserialize a class in C++?
13 Answers
13
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How to insert element into arrays at specific position?
Let's imagine that we have two arrays:
23 Answers
23
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How to define optional methods in Swift protocol?
Is it possible in Swift? If not then is there a workaround to do it?
19 Answers
19
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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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