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What is the difference between a field and a property?
...horthand syntax
// used to generate a private field for you
public int AnotherProperty{get;set;}
}
@Kent points out that Properties are not required to encapsulate fields, they could do a calculation on other fields, or serve other purposes.
@GSS points out that you can also do other log...
How Pony (ORM) does its tricks?
Pony ORM does the nice trick of converting a generator expression into SQL. Example:
1 Answer
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Extract only right most n letters from a string
...Any of the answers that use a function wrapper are better suited to code maintanance than a regular expression. An extension method (or standard function if .NET 2.0) is the best solution.
– stevehipwell
Nov 12 '09 at 14:57
...
Format numbers to strings in Python
...o both. I shamelessly ripped this stuff straight out of my hardcore Python intro book and the slides for the Intro+Intermediate Python courses I offer from time-to-time. :-)
Aug 2018 UPDATE: Of course, now that we have the f-string feature in 3.6, we need the equivalent examples of that, yes anothe...
Select values from XML field in SQL Server 2008
...My XML is <BAM><Type>Electrical</Type><BaIds><a:int>7330</a:int></BaIds></BAM>, my select is select e.MessageData.value('(/BAM/Type)[1]', 'varchar(100)'). I have also tried select e.MessageData.value('(/BAM/Type/node())[1]', 'varchar(100)'), and '(//Ty...
how to listen to N channels? (dynamic select statement)
...tion from the reflect package:
func Select(cases []SelectCase) (chosen int, recv Value, recvOK bool)
Select executes a select operation described by the list of cases. Like
the Go select statement, it blocks until at least one of the cases can
proceed, makes a uniform pseudo-random choi...
Java: Integer equals vs. ==
As of Java 1.5, you can pretty much interchange Integer with int in many situations.
7 Answers
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Invoking a static method using reflection
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public class Add {
static int add(int a, int b){
return (a+b);
}
}
In the above example, 'add' is a static method that takes two integers as arguments.
Following snippet is used to call 'add' method with input 1 and 2.
Class myClass = ...
How to add a delay for a 2 or 3 seconds [closed]
...
You could use Thread.Sleep() function, e.g.
int milliseconds = 2000;
Thread.Sleep(milliseconds);
that completely stops the execution of the current thread for 2 seconds.
Probably the most appropriate scenario for Thread.Sleep is when you want to delay the operations...
When to use ref and when it is not necessary in C#
...he reference is passed, not a copy of the object. This is like passing a pointer (by value) in C or C++. Changes to the value of the parameter itself won't be seen by the caller, but changes in the object which the reference points to will be seen.
When a parameter (of any kind) is passed by refere...