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onSaveInstanceState () and onRestoreInstanceState ()
I'm trying to save and restore the state of an Activity using the methods onSaveInstanceState() and onRestoreInstanceState() .
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Which cryptographic hash function should I choose?
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In cryptography, hash functions provide three separate functions.
Collision resistance: How hard is it for someone to find two messages (any two messages) that hash the same.
Preimage Resistance: Given a hash, how hard is it to f...
Activity restart on rotation Android
... restarted ( onCreate is called). Now, this is probably how it's supposed to be, but I do a lot of initial setting up in the onCreate method, so I need either:
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Change a Git remote HEAD to point to something besides master
How do I set a Git remote's HEAD reference to point to something besides "master"?
11 Answers
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Can't connect to local MySQL server through socket '/tmp/mysql.sock
When I attempted to connect to a local MySQL server during my test suite, it
fails with the error:
32 Answers
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How to suppress Java warnings for specific directories or files such as generated code
I'm using a parser generator that creates somewhat ugly code. As a result my Eclipse project has several dozen warnings emanating from generated source files. I know I can use the @SuppressWarning annotation to suppress particular warnings in particular elements, but any annotations I add by hand ...
How to implement an abstract class in ruby?
...know there is no concept of abstract class in ruby. But if at all it needs to be implemented, how to go about it? I tried something like...
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What's the best strategy for unit-testing database-driven applications?
...art of the build process. As you discover data that causes errors, add it to your sample data to check that errors don't re-emerge.
Use a continuous integration server to build the database schema, load the sample data, and run tests. This is how we keep our test database in sync (rebuilding it at...
What's the recommended way to connect to MySQL from Go?
I am looking for a reliable solution to connect to a MySQL database from Go. I've seen some libraries around but it is difficult to determine the different states of completeness and current maintenance. I don't have complicated needs, but I'd like to know what people are relying on, or what's the m...
How to make a node.js application run permanently?
On a Debian server, I installed Node.js. I understand how to launch an app from putty with this command line:
19 Answers
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