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java.util.regex - importance of Pattern.compile()?
...ch is really called a lot :)
public class AmountValidator {
//Accept 123 - 123,456 - 123,345.34
private static final String AMOUNT_REGEX="\\d{1,3}(,\\d{3})*(\\.\\d{1,4})?|\\.\\d{1,4}";
//Compile and save the pattern
private static final Pattern AMOUNT_PATTERN = Pattern.compile(AM...
Why catch and rethrow an exception in C#?
...ple, in VB you can do
Try
..
Catch Ex As MyException When Ex.ErrorCode = 123
..
End Try
...which would not handle MyExceptions with different ErrorCode values. In C# prior to v6, you would have to catch and re-throw the MyException if the ErrorCode was not 123:
try
{
...
}
catch(MyExcepti...
How do I truncate a .NET string?
...
Because performance testing is fun: (using linqpad extension methods)
var val = string.Concat(Enumerable.Range(0, 50).Select(i => i % 10));
foreach(var limit in new[] { 10, 25, 44, 64 })
new Perf<string> {
{ "newstring" + limit, n =&...
What is boxing and unboxing and what are the trade offs?
...xing is the conversion of a reference type into a value type.
EX: int i = 123;
object o = i;// Boxing
int j = (int)o;// UnBoxing
Value Types are: int, char and structures, enumerations.
Reference Types are:
Classes,interfaces,arrays,strings and objects
...
Regular expression to match numbers with or without commas and decimals in text
... are embedded in other text. IMHO anything that fails to pull 1,234.56 and 1234—and only those numbers—out of abc22 1,234.56 9.9.9.9 def 1234 is a wrong answer.
First of all, if you don't need to do this all in one regex, don't. A single regex for two different number formats is hard to maintain...
Does bit-shift depend on endianness?
...rticles: codeproject.com/KB/cpp/endianness.aspx and ibm.com/developerworks/aix/library/au-endianc/…
– Carl
Sep 4 '11 at 23:39
3
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Why is SQL Server 2008 Management Studio Intellisense not working?
...I found SqlComplete.
http://www.devart.com/dbforge/sql/sqlcomplete/?gclid=CN2xs_Lw7akCFcYZHAodpicXXw
There is a free version which does the basics, and the full version is only $50!
I'm a database architect, and while I can remember the commands, auto complete saves me heaps of time. If you're s...
How to list only the file names that changed between two commits?
...rex/RexSimplify.java | 50 +++++++++++++++++-----
.../apache/calcite/sql/fun/SqlTrimFunction.java | 2 +-
.../apache/calcite/sql2rel/SqlToRelConverter.java | 16 +++++++
.../org/apache/calcite/util/SaffronProperties.java | 19 ++++----
.../org/apache/calcite/test/RexProgramTest.java | 24 +...
How to revert (Roll Back) a checkin in TFS 2010
...
123
You have two options for rolling back (reverting) a changeset in Team Foundation Server 2010 V...
What are “connecting characters” in Java identifiers?
...king isJavaIdentifierPart instead of isJavaIdentifierStart. It's much more fun!
– Aleksandr Dubinsky
Jun 2 '16 at 19:21
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