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Generic TryParse
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You should use the TypeDescriptor class:
public static T Convert<T>(this string input)
{
try
{
var converter = TypeDescriptor.GetConverter(typeof(T));
if(converter != null)
{
// Cast ConvertFromString(string text) : object to (T)
...
Convert a byte array to integer in Java and vice versa
...LeifEricson I believe the & 0xFFs are necessary as it tells the JVM to convert the signed byte into an integer with just those bits set. Otherwise the byte -1 (0xFF) will turn into the int -1 (0xFFFFFFFF). I could be wrong and even if I am it doesn't hurt and makes things clearer.
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How do I convert a String to an int in Java?
How can I convert a String to an int in Java?
46 Answers
46
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Adding information to an exception?
...ar(arg1):
try:
foo()
except Exception as e:
import sys
raise type(e), type(e)(e.message +
' happens at %s' % arg1), sys.exc_info()[2]
bar('arg1')
Traceback (most recent call last):
File "test.py", line 16, in <module>
ba...
How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
...erflow, but it'll mask larger numbers, which might cause trouble if you're converting a table. Personally I'd rather have the query error out up front and know that some of my "integers" are screwy (You can also select with E'\\d{6,}$' first to make sure).
– Anthony Briggs
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How to calculate dp from pixels in android programmatically [duplicate]
...t the OP asked for.
Note that TypedValue.applyDimension cannot be used to convert px->dp, for that you must use the method described here: https://stackoverflow.com/a/17880012/504611 (quoted below for convenience).
Without Context object, elegant static methods:
public static int dpToPx(int...
Combining node.js and Python
...now if something like this will work on Heroku, which has an ephemeral filesystem?
– cm2
Jul 6 '13 at 1:46
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How to find the port for MS SQL Server 2008?
...r
Method 2: Windows Event Viewer
Method 3: SQL Server Error Logs
Method 4: sys.dm_exec_connections DMV
Method 5: Reading registry using xp_instance_regread
Method 4: sys.dm_exec_connections DMV
I think this is almost the easiest way...
DMVs return server state that can be used to monitor SQL Serve...
Convert hex to binary
... This returns "binary" as in the actual bytes, but it does not convert it to a printable representation as "0" and "1".
– Matt Good
Sep 15 '09 at 6:52
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Cron and virtualenv
...me_command > /dev/null
It's tricky to spot why this fails as /var/log/syslog doesn't log the error details. Best to alias yourself to root so you get emailed with any cron errors. Simply add yourself to /etc/aliases and run sendmail -bi.
More info here:
http://codeinthehole.com/archives/43-R...