Posts

c# - Which one is more efficient : List<int> or int[] -

Can anyone tell me which list & lt; Int & gt; Better between and int [] . Because I am working on a project and as you know that efficiency is now a matter of so much important concern. If you've added some introductory notes to your post, then it would be great :) (should the list be resizable)? & Lt; Integer & gt; : Int [] List int [] that resizes as needed, with JIT inlining, they should execute almost equally, but JIT will be Int [] will be an easy time to exclude extra performance because it is a CLI old, with dedicated il instructions.

java - Maven for other languages? -

I'm relatively new to the world of Java and Maven, but I'm not imagining a new Java project without using Maven can do . The idea of ​​providing a human-readable project model is something that I imagine is universally desirable in many languages. This is particularly true when your application relies on many external libraries. Does any other project manage tools or tools for languages ​​other than Java which is similar to Maven like nature; Is that, which provides a mechanism for specifying the dependency and construction order for project maintenance? Here's something to know about someone. As they are the most suitable tools for a given language, they make their opinions. Net: and Aspect: (still Java I know but worth mentioning) C / C ++: compile with compilers like GCC, MSVC, etc. PHP: Ruby: Slam: Flex and Air: / Li> Uncontrolled "integration" can be controlled by using the contextual compiler to open the execution is compul...

javascript - jquery-how to detect child id? -

& lt; div id = "पहले" & gt; & Lt; div id = "यहां" & gt; ... & lt; / div & gt; & Lt; / div & gt; & Lt; div id = "second" & gt; & Lt; div id = "यहां" & gt; ... & lt; / div & gt; & Lt; / div & gt; jquery: $ ("# सेकंड #here")। क्लिक करें (फ़ंक्शन () {}); कैसे मैं दूसरी पर क्लिक करने के लिए jquery लिखने के लिए? यह पूछने का गलत प्रश्न है, क्योंकि आपके पास किसी दस्तावेज़ में डुप्लिकेट आईडी नहीं हैं। एक आईडी एक तत्व की सामाजिक सुरक्षा संख्या की तरह है। आप एक से अधिक तत्व नहीं दे सकते हैं, क्योंकि तब जब आप आईडी से एक तत्व खोजने के लिए जावास्क्रिप्ट कहेंगे, तो यह वास्तव में एक से अधिक है और आपको अप्रत्याशित परिणाम देगा। कारण आईडी लुकअप उतना ही तेज़ हैं जितना वे हैं क्योंकि ब्राउज़र में आईडी-> एलीमेंट की एक हैश तालिका हो सकती है - कम से कम कहने के लिए उस समझ का एक बुरा व्यवहार है। जब आपके पास कई तत्व हैं जो सभी समान "प्रकार" हैं, उचित अभ्यास उन वर्गों...

python - Rearrange equations for solver -

I'm looking to find a normal python method, to manipulate the way to solve questions in the equations . For example: There may be some constants to get started e1, e2 = 0.58,0.62 ma1, ma2 = 0.85, 1.15 mw = 0.8 CPA, CPW = 1.023,4.193 DBA, DBR = 0.0,25.0 and a group of equations (read here for readability instead of solver) Q = e1 * ma1 * CPA * (tw1-dba) Q = MA1 * CPA * (DBS-DBA) Q = MW * CPW * (BB-2-B2) QE = E2 * M2 * CPA * (DBR-B2) Q = MA2 * CPA * (DBR-DBO) This leaves 5 unknown, so the system can probably be sorted out. Q, dbo, dBR, tw1, tw2 The actual systems are non-linear and more complex. I have already solved this simple example, delphi, sage ... so I am not looking for a solution. The equations are typed directly into the text editor and I want a dragon program that gives me an array of unknown and protection functions. y = Mysolver.fsolve (f, x) So, for example above x = [Q, dbo, dbr, tw1, tw2] f = [q-e1 * m1 * cpa * (b1-dba), q-m1 * cpa...

c++ - How to mark a list control item as selected? -

In a Win32 application I have a dialog with a list control that is defined as the dialog template: controls "", IDC_LIST_Attributes, "SysListView32", LVS_REPORT | LVS_SINGLESEL | LVS_ALIGNLEFT | WS_BORDER | WS_TABSTOP, 7,36,246,110 At the runtime I retrieve the handle in that control and take various actions with it - remove all items, add items, etc. It works fine. The problem is that I can not programmatically mark a program as selected, I use the following code for it: LVITEM lvItem; LvItem.stateMask = StateMask; LvItem.state = State; SendMessage (windowhandle, LVM_SETMTT, inductatectalect, (LARAPAM) and LVIT); This code runs and there is no change in the list control. When I clice on items with a mouse, their selection is fine. What am I missing? Have you tried? From the MSDN link: The items will only be shown as selected if the list-view control is Focus or LVS_SHOWSELALWAYS style is used. My help.

has and belongs to many - CakePHP HABTM question -

There may be a newbie question because I'm trying to see all these "PHP frameworks" on my free time Are there. / P> For starters, I want to add multiple tags to multiple tags. I have a tag model and mot model (photo). Entity ('classname' = & gt; 'Tag', 'joinTable' = & gt; 'mott_tags', 'foreign key' = & gt; 'mot_id', 'associationforeignkey' = & gt; 'tag_id', 'unique' = & Gt; wrong)); I have () in my Tag Controller in the ad: $ this-> Tag- & gt; Save ($ this-> Data); When I see this - $ data- array ([Mot] => array ( [Title] => 21e21e) ) [tag] => Tag> tag tags, but nothing is mixed (mutes and underscores between tags) but when I write it instead of being an underscore, the table My mots_tags db schema: (sqlite) to create table mots_tags (id INTEGER primary key, mot_id INTEGER, tag_id INTEGER) No clue why the cake Only writes tag ...

data structures - lists in structs in F#? -

I'm very new to F # and I'm trying to create a straightforward stack of polygons, and In this list of coordinates: type polygon = struct val cord: list new (list_of_Coords) = {end = list_of_Coords} termination but say visual studio "Type 'Microsoft. FSHRP Colections.List.LT; _>' 1 kind of argument (rationality) is expected In which 0 " has been I do not think like that I have no intention of starting the list structure just announced it. see for answers. (Repeat here: You need to specify the list type, such as list & lt; float>. type polygon = Struct val COORDS: LIST & lt; float & gt; new (list_of_Coords) = {Coords = list_of_Coords} end )