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What's up with Java's “%n” in printf?
... In particular, Windows system use \r\n, and early MacOS systems used \r.
By using %n in your format string, you tell Java to use the value returned by System.getProperty("line.separator"), which is the line separator for the current system.
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How to make EditText not editable through XML in Android?
...o have one question. Does this in any way change the default values needed by KeyListener, like setFocusable() because the doc says that the default implementation might be changed if changed.
– Andy
Jun 26 '12 at 18:20
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Remove empty lines in text using Visual Studio
...
Since Visual Studio 2012 changed its regex syntax, the original answers by Ala translate into the following in VS 2012:
Remove single blank lines
Old:
^:b*$\n
New:
^(?([^\r\n])\s)*\r?$\r?\n
Visual Studio 2013 (thanks to BozoJoe and Joe Johnston):
^\s*$\n
Remove double blank lines
Old:...
Positive Number to Negative Number in JavaScript?
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Is this faster than multiplying by negative 1?
– ryandawkins
Jun 2 '15 at 15:32
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Generating CSV file for Excel, how to have a newline inside a value
... characters (encoded in UTF-8) in the file, you should have a UTF-8 BOM (3 bytes, hex EF BB BF) at the start of the file. Otherwise Excel will interpret the data according to your locale's default encoding (e.g. cp1252) instead of utf-8, and your non-ASCII characters will be trashed.
Following comm...
How do I convert an integer to string as part of a PostgreSQL query?
...use the number can be up to 15 digits, you'll meed to cast to an 64 bit (8-byte) integer. Try this:
SELECT * FROM table
WHERE myint = mytext::int8
The :: cast operator is historical but convenient. Postgres also conforms to the SQL standard syntax
myint = cast ( mytext as int8)
If you have ...
Are there any smart cases of runtime code modification?
...re Tradeoffs for Bitmap Graphics on the Blit (1984) or this posting (2006) by Chris Lattner on Apple's use of LLVM for runtime code specialization in their OpenGL stack.
In some cases software resorts to a technique known as trampoline which involves the dynamic creation of code on the stack (or ano...
How can I find out a file's MIME type (Content-Type)?
...me-type FILE_NAME returns just the mime type
– jaygooby
Jan 31 '13 at 16:12
or kmimetypefinder filename
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Check if a string contains another string
...ns a ","(comma) in it. Do we have any other option other than reading char-by-char?
4 Answers
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Opening port 80 EC2 Amazon web services [closed]
... Also, check your firewall (as nsof stated). RHEL has iptables started by default. Windows has windows FW. Turn them off and see if that was the problem. If it was, then edit the firewall to allow 80/443 and restart
– Andrew Backer
Feb 28 '14 at 8:36
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