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How do I run multiple instances of Android Studio
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Your Android Studio was set to open project in the same window. You can change that, so it ask...
what is the difference between a portlet and a servlet?
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edited Jun 12 '12 at 4:58
answered Sep 26 '09 at 6:13
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What makes JNI calls slow?
...omething that can take tens of nanoseconds. For trivial native methods, in 2010 I measured calls at an average 40 ns on my Windows desktop, and 11 ns on my Mac desktop. Unless you're making many calls, you're not going to notice.
That said, calling a native method can be slower than making a normal...
How to create a unique index on a NULL column?
I am using SQL Server 2005. I want to constrain the values in a column to be unique, while allowing NULLS.
4 Answers
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Select last N rows from MySQL
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You can do it with a sub-query:
SELECT * FROM (
SELECT * FROM table ORDER BY id DESC LIMI...
BigDecimal - to use new or valueOf
...with a scale of 1), but it is actually equal to 0.1000000000000000055511151231257827021181583404541015625. This is because 0.1 cannot be represented exactly as a double (or, for that matter, as a binary fraction of any finite length). Thus, the value that is being passed in to the constructor is not...
What is default session timeout in ASP.NET?
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It is 20 Minutes according to MSDN
From MSDN:
Optional TimeSpan attribute.
Specifies the number of minutes a session can be idle before it is abandoned. The timeout attribute cannot be set to a value that is greater than 525,601 m...
How to set up a git project to use an external repo submodule?
...pares them to Subversion's svn:externals mechanism: http://speirs.org/blog/2009/5/11/understanding-git-submodules.html
* As a best practice, you should always place your submodules in their own directory, such as Externals. If you don't, your root project directory can become very cluttered very ...
Setting up a git remote origin
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Using SSH
git remote add origin ssh://login@IP/path/to/repository
Using HTTP
git remote ad...