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How can I validate a string to only allow alphanumeric characters in it?
...know that I will never remember the syntax. Even if I study it, there will come a time soon when it's all forgotten again.
– Sentinel
Jan 14 '15 at 17:26
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Is there a naming convention for MySQL?
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MySQL has a short description of their more or less strict rules:
https://dev.mysql.com/doc/internals/en/coding-style.html
Most common codingstyle for MySQL by Simon Holywell:
http://www.sqlstyle.guide/
See also this question:
Are there any published coding style guidelines for SQL?
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Value Change Listener to JTextField
...gered by default on a focus change or when the enter key is pressed.
See http://docs.oracle.com/javase/tutorial/uiswing/components/formattedtextfield.html#value for more details.
Create a default formatter (DefaultFormatter) object to be passed to the JFormattedTextField either via its constructo...
Tips for using Vim as a Java IDE? [closed]
...jects.
And don't forget to set the highlighting if you haven't already:
https://github.com/sentientmachine/erics_vim_syntax_and_color_highlighting
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
...eUploader: {
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Good introduction to the .NET Reactive Framework [closed]
...ples demonstrating how to use different features of the .NET Rx framework: http://rxwiki.wikidot.com/101samples
I found this to be the most comprehensive site out there, and the one that's quickest to get started with.
shar...
Difference between session affinity and sticky session?
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If you authenticate users, partition based on user name (it has to be an HTTP supported authentication mode to do this).
Don't require state.
Let clients hit any server (send state to the client and have them send it back)
This is not a sticky session, it's a way to avoid having to do it.
I woul...
Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?
...eUploader: {
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minimize app to system tray
...show the
balloon tip that shows some information. Once the WindowState becomes
FormWindowState.Normal, disable the NotifyIcon object by setting its
Visible property to false. Now, you want the window to reappear when
you double click on the NotifyIcon object in the taskbar. For this,
handl...
What's a concise way to check that environment variables are set in a Unix shell script?
...tive, exits. Otherwise, the value of parameter is substituted.
The Colon Command
I should probably add that the colon command simply has its arguments evaluated and then succeeds. It is the original shell comment notation (before '#' to end of line). For a long time, Bourne shell scripts had a c...