Possible Duplicate:
FindAll vs Where extension-method
IEnumerable has two extension methods, Where and FindAll. Both seem to take a Predicate, and return an IEnumerable of the matching elements in the original IEnumerable. So what is the difference between them?
3 questions:
1) What is the difference between connection and read timeout for sockets?
2) What does connection timeout set to "infinity" mean? In what situation can it remain in an infinitive loop? and what can trigger that the infinity-loop dies?
3) What does read timeout set to "infinity" mean? In what situation can it remain in an infinitive loop? and what can trigger that the infinity-loop dies?
I'm Studying up on .net reflection and am having a hard time figuring out the difference.
From what I understand, List is a generic type definition. Does that mean that to .net reflection T is the generic type?
Specifically, I guess I'm looking for more background on the Type.IsGenericType and Type.IsGenericTypeDefinition functions.
Thanks!
I am confused as to the difference between the two. In my application I have just used Extends Activity and the application is working perfectly, so what is the purpose of Extends Application?.
Would you use it on the first class you create in the Android application?
Thanks.
For instance, there’s a integer column in a database table.
Then in java model, it can be mapped both as primitive int and Integer.
My question is what's difference between the int and Integer in this case? And performance concern?
Thanks!
The more I read about NoSQL, the more it begins to sound like a column oriented database to me.
What's the difference between NoSQL (e.g. CouchDB, Cassandra, MongoDB) and a column oriented database (e.g. Vertica, MonetDB)?
In nowadays the PostgreSQL offers plenty of procedural languages: pl/pgsql, pl/perl, etc
Are there any difference in the speed/memory consumption in procedures written in different languages?
Does anybody have done any test?
Is it true that to use the native pl/pgsql is the most correct choice?
How the procedure written in C++ and compiled into loadable module differs in all parameter w.r.t. the user function written with pl/* languages?
In Microsoft SQL, is there any difference in performance between this:
SELECT columns FROM table1 WHERE cond
UNION
SELECT columns FROM table2 WHERE cond
and this:
SELECT columns FROM
(
SELECT columns FROM table1
UNION
SELECT columns FROM table2
) WHERE cond
?
I was having troubles earlier while trying to declare a ChangeAction parameter in a method, with the IDE saying I might be missing a Namespace.
So I right click it and Resolve it and find that System.Data.Linq has been added and now everything is fine.
What is the difference between these two namespaces?
Are the following 2 lines completely equivalent? If not what's the difference? I've seen plently of shellscripts utilize number 1 and was just wondering what it gives you compared with number 2.
typeset TARGET="${XMS_HOME}/common/jxb/config/${RUNGROUP}.${ENV}.properties"
TARGET="${XMS_HOME}/common/jxb/config/${RUNGROUP}.${ENV}.properties"
I recently came to know that, different Information Technology are also based on N-Tier Architecture.
For example, a Web Technology is usually 3-Tier Architecture: The user, The Web Server and The Database Server. But we also develop various applications in N-tier. What are the difference between these two and how are they related to each other.
I Was reading random questions and answers here on SO and came across this question:
C#, IAsyncResult and the thread pool
The question is asked is X method using the thread pool or using normal threads.
What's the difference between using the thread pool and a normal thread?
Hi,
I'm a .NET programmer who've just started to learn more about client side scripting, and I was wondering sometimes you use $get('value') and $find('value') and I've discovered that these are just shortcuts for
$get = GetElementByID
$find = FindComponent
however, I still don't understand, what is the difference between these two functions in JavaScript?
Thanks in advance.
In window programming, what is the difference between solicit and unsolicit message or events. I have seen some saying like we have handled solic or unsolic messages. What is that actually?
Can someone pls help on this?
The Boolean type has two literal
values: true and false.
Do not confuse the primitive Boolean
values true and false with the true
and false values of the Boolean
object. The Boolean object is a
wrapper around the primitive Boolean
data type. See Boolean Object for more
information.
What does this mean? What's the difference between the Boolean object and the Boolean data type??
Hi,
I want to read mail,calendar,contact items from Novell GroupWise Client.(using version 8).
How to start with? Which API is best for this?
What will be difference if i use "gwtapp.dll" or "GroupWise Web Services" ?
thanx
I recently came to know that, different Information Technology are also based on N-Tier Architecture.
For example, a Web Technology is usually 3-Tier Architecture: The user, The Web Server and The Database Server. But we also develop various applications in N-tier. What are the difference between these two and how are they related to each other.
Thought I would ask the knowledgeable StackOverflow community a question that was on my mind today and I can't seem to find an answer.
Is there any performance difference or advantage between an "IN" or using "OR"?
Ie. Is
SELECT type FROM types WHERE typecat IN ('abc', 'def')
better than
SELECT type FROM types WHERE typecat = 'abc' OR typecat = 'def'
Both Thread.Sleep(timeout) and resetEvent.Wait(timeout) cause execution to pause for at least timeout milliseconds, so is there a difference between them? I know that Thread.Sleep causes the thread to give up the remainder of its time slice, thus possibly resulting in a sleep that lasts far longer than asked for. Does the Wait(timeout) method of a ManualResetEvent object have the same problem?