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What is the difference between JVM, JDK, JRE & OpenJDK?
What is the difference between JVM , JDK , JRE & OpenJDK ?
19 Answers
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Linux: copy and create destination dir if it does not exist
...can do this with the --parents flag of cp. From the info page (viewable at http://www.gnu.org/software/coreutils/manual/html_node/cp-invocation.html#cp-invocation or with info cp or man cp):
--parents
Form the name of each destination file by appending to the target
directory a slash a...
What is a mixin, and why are they useful?
In " Programming Python ", Mark Lutz mentions "mixins". I'm from a C/C++/C# background and I have not heard the term before. What is a mixin?
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Relatively position an element without it taking up space in document flow
... original position by default if you don't specify "left", "bottom", etc.
http://css-tricks.com/absolute-positioning-inside-relative-positioning/
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What is the difference between `after_create` and `after_save` and when to use which?
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Plain Old CLR Object vs Data Transfer Object
POCO = Plain Old CLR (or better: Class) Object
10 Answers
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Start ssh-agent on login
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Please go through this article. You may find this very useful:
http://mah.everybody.org/docs/ssh
Just in case the above link vanishes some day, I am capturing the main piece of the solution below:
This solution from Joseph M. Reagle by way of Daniel Starin:
Add this following t...
INSERT … ON DUPLICATE KEY (do nothing)
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How to put spacing between TBODY elements
I have a table like this:
12 Answers
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How do you run a single query through mysql from the command line?
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