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How exactly does a generator comprehension work?

What does generator comprehension do? How does it work? I couldn't find a tutorial about it. 6 Answers ...
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Setting Short Value Java

I am writing a little code in J2ME. I have a class with a method setTableId(Short tableId) . Now when I try to write setTableId(100) it gives compile time error. How can I set the short value without declaring another short variable? ...
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How to manually send HTTP POST requests from Firefox or Chrome browser?

I want to test some URLs on a web application I'm working on. For that I would like to manually create HTTP POST requests (meaning I can add whatever parameters I like). ...
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The name does not exist in the namespace error in XAML

Using VS2012 working on a VB.NET WPF application. I have a simple MusicPlayer tutorial app I am using to learn WPF. I am converting a C# version of the tutorial to VB.NET step by step. ...
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Is std::vector so much slower than plain arrays?

I've always thought it's the general wisdom that std::vector is "implemented as an array," blah blah blah. Today I went down and tested it, and it seems to be not so: ...
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Using scanf() in C++ programs is faster than using cin?

I don't know if this is true, but when I was reading FAQ on one of the problem providing sites, I found something, that poke my attention: ...
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Create PostgreSQL ROLE (user) if it doesn't exist

How do I write an SQL script to create a ROLE in PostgreSQL 9.1, but without raising an error if it already exists? 10 Answ...
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Different bash prompt for different vi editing mode?

When using vi mode (set -o vi) with Bash, it would be nice to have a prompt that depends on the mode you are currently in (insert or command). How does one find out this editing mode? ...
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Running a cron every 30 seconds

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How do I concatenate const/literal strings in C?

I'm working in C, and I have to concatenate a few things. 17 Answers 17 ...