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What is the equivalent of the C# 'var' keyword in Java?
.... variables are still 100% statically typed. This will not compile:
var myString = "foo";
myString = 3;
var is also useful when the type is obvious from context. For example:
var currentUser = User.GetCurrent();
I can say that in any code that I am responsible for, currentUser has a User or der...
Why seal a class?
...
Performance is an important factor for example, the string class in java is final(<- sealed) and reason for this is performance only.
I think another important point is to avoid the brittle base class problem described in detail here:
http://blogs.msdn.com/ericlippert/archi...
Node.js vs .Net performance
...gt;
/// main entry point
/// </summary>
static void Main(string[] args)
{
Program p = new Program();
p.Run(args);
}
/// <summary>
/// actual execution
/// </summary>
private void Run(string[] args)
{
// check command ...
Use JSTL forEach loop's varStatus as an ID
... edited May 2 '19 at 8:56
Andrew Tobilko
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answered Jul 6 '11 at 17:50
...
in a “using” block is a SqlConnection closed on return or exception?
...t it later:
using (SqlConnection connection = new SqlConnection(connectionString))
{
int employeeID = findEmployeeID();
try
{
connection.Open();
SqlCommand command = new SqlCommand("UpdateEmployeeTable", connection);
command.CommandType = CommandType...
Using try vs if in python
...bility.
In your example (say that instead of returning a list or an empty string, the function were to return a list or None), if you expect that 99 % of the time result will actually contain something iterable, I'd use the try/except approach. It will be faster if exceptions really are exceptional...
JPA EntityManager: Why use persist() over merge()?
EntityManager.merge() can insert new objects and update existing ones.
15 Answers
15
...
Validating with an XML schema in Python
...bjectify
from lxml.etree import XMLSyntaxError
def xml_validator(some_xml_string, xsd_file='/path/to/my_schema_file.xsd'):
try:
schema = etree.XMLSchema(file=xsd_file)
parser = objectify.makeparser(schema=schema)
objectify.fromstring(some_xml_string, parser)
prin...
PHP expects T_PAAMAYIM_NEKUDOTAYIM?
...
Highlight string is להדגיש מחרוזת. From now on, I will only use my custom array_push function לדחוף_מערך in Hebrew characters, of course. I'm sure all of my non-Hebrew speaking coworkers will love it. Just about a...
Using SQL Server 2008 and SQL Server 2005 and date time
...space SetEdmxSqlVersion
{
class Program
{
static void Main(string[] args)
{
if (2 != args.Length)
{
Console.WriteLine("usage: SetEdmxSqlVersion <edmxFile> <sqlVer>");
return;
}
string ...