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Difference between Key, Primary Key, Unique Key and Index in MySQL
When should I use KEY , PRIMARY KEY , UNIQUE KEY and INDEX ?
8 Answers
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UINavigationController “back button” custom text?
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Just to clarify Tyler's comment because I did not understand this at first: Setting the backBarButtonItem in a view controllers navigationItem is setting the button that will show to get BACK to this view controller. Also note that although there is no button style for the arrow bu...
Saving and Reading Bitmaps/Images from Internal memory in Android
... when I want to share the saved image, it returns "Directory not created" and the image is crashed. can you help me?
– A. N
Oct 9 '17 at 8:02
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Is it possible to search for a particular filename on GitHub?
...ir subdirectory location? I tried using asterisks in the path argument, and that didn't seem to work.
8 Answers
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How to list the tables in a SQLite database file that was opened with ATTACH?
What SQL can be used to list the tables, and the rows within those tables in an SQLite database file - once I have attached it with the ATTACH command on the SQLite 3 command line tool?
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efficient circular buffer?
...e nice batteries included way. Operations for the circular buffer are O(1) and as you say the extra overhead is in C, so should still be quite fast
– John La Rooy
Nov 11 '10 at 9:38
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Debugging App When Launched by Push Notification
...several different types of push notifications my app can receive. The PHP handles this and sends different packets of information to my app which are all received just fine.
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Hosting Git Repository in Windows
...here currently a way to host a shared Git repository in Windows? I understand that you can configure the Git service in Linux with:
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Why doesn't Java allow to throw a checked exception from static initialization block?
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Because it is not possible to handle these checked exceptions in your source. You do not have any control over the initialization process and static{} blocks cannot be called from your source so that you could surround them with try-catch.
Because you can...
HttpURLConnection timeout settings
...as a setConnectTimeout method.
Just set the timeout to 5000 milliseconds, and then catch java.net.SocketTimeoutException
Your code should look something like this:
try {
HttpURLConnection.setFollowRedirects(false);
HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();...