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Why is using a wild card with a Java import statement bad?
... your local namespace. For example, let's say that you're writing a Swing app, and so need java.awt.Event, and are also interfacing with the company's calendaring system, which has com.mycompany.calendar.Event. If you import both using the wildcard method, one of these three things happens:
You ...
Unzip files programmatically in .net
...sing the .NET framework:
using System;
using System.IO;
namespace ConsoleApplication
{
class Program
{
static void Main(string[] args)
{
string startPath = @"c:\example\start";
string zipPath = @"c:\example\result.zip";
string extractPath = @"c:\example\extract";
...
How to emulate GPS location in the Android Emulator?
...rsion: 2.3.3
In addition, to make your different locations coming to your application in real time, you can use GPX file. It's very easy to create this file from Google Map direction link:
Go to google map, choose a location, then press "Directions" and enter the second location.
After route is c...
Escape angle brackets in a Windows command prompt
... echo to do the output and quote with double quotes:
C:\WINDOWS> set/p _="<html>" <nul
<html>
C:\WINDOWS> set/p _="<html>" <nul | sort
<html>
Note that this will not preserve leading spaces on the prompt text.
...
How can I get a list of all functions stored in the database of a particular schema in PostgreSQL?
...
SELECT n.nspname as "Schema", p.proname as "Name", pg_catalog.pg_get_function_result(p.oid) as "Result data type", pg_catalog.pg_get_function_arguments(p.oid) as "Argument data types", CASE WHEN p.proisagg THEN 'agg' WHEN p.proiswindow THEN 'window' WHEN p.prorettype =...
C++/COM VARIANT实现二维数组 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
使用SAFEARRAR实现二维数组的源代码如下：
VARTYPE vt = VT_I4; /*数组元素的类型，long*/
SAFEARRAYBOUND sab[2]; /*用于定义数组的维数和下标的起始值*/
sab[0].cElements = 2;
sab[0].lLbound = 0;
sab[1].cElements = 2;
sab[1].lLbou...
How to implement has_many :through relationships with Mongoid and mongodb?
...ified example from the Rails guides , how does one model a relational "has_many :through" association using mongoid?
4 Ans...
Under what circumstances are linked lists useful?
...
I should add that the "linked lists in an array" approach in case of the Dictionary saves significantly more in .NET: otherwise each node would require a separate object on the heap - and every object allocated on the heap have some overhead. (en.csharp-online.net/Common_Ty...
Unit test naming best practices [closed]
...
I like Roy Osherove's naming strategy, it's the following:
[UnitOfWork_StateUnderTest_ExpectedBehavior]
It has every information needed on the method name and in a structured manner.
The unit of work can be as small as a single method, a class or as large as multiple classes. It should repres...
How to use ELMAH to manually log errors
...e(ex);
}
There is a difference between the two solutions:
Raise method applies ELMAH filtering rules to the exception. Log method does not.
Raise is subscription based and is able to log one exception into the several loggers.
...