Search Results

Search found 4012 results on 161 pages for 'concept hierarchy'.

Page 97/161 | < Previous Page | 93 94 95 96 97 98 99 100 101 102 103 104  | Next Page >

• IOC - Should util classes with static helper methods be wired up with IOC?

  - by Greg

  Hi, Just trying to still get my head around IOC principles. Q1: Static Methods - Should util classes with static helper methods be wired up with IOC? For example if I have a HttpUtils class with a number of static methods, should I be trying to pass it to other business logic classes via IOC? Follow on questions for this might be: Q2: Singletons - What about things like logging where you may typically get access to it via a Logger.getInstance() type call. Would you normally leave this as is, and NOT use IOC for injecting the logger into business classes that need it? Q3: Static Classes - I haven't really used this concept, but are there any guidelines for how you'd typically handle this if you were moving to an IOC based approach. Thanks in advance.

  Read the article

• What is a practical, real world example of the Linked List?

  - by JStims

  I understand the definition of a Linked List, but how can it be represented and related to a common concept or item? For example, inheritance in OOP can be related to automobiles. All (most) automobiles in real life are the essentially same thing; an automobile has an Engine, you can start() it, you can make the car go(), stop() and so on. An automobile would typically have a maximum passenger capacity but it would differ between a Bus and a SportsCar, which are both automobiles. Is there some real life, intuitive example of the plain ole' singly Linked List like we have with inheritance? The typical textbook Linked List example shows a node with an integer and a pointer to the next, and it just doesn't seem very useful. Your input is appreciated.

  Read the article

• Which build tool to teach?

  - by Helper Method

  While similiar questions have been asked, this one's focused on which is best/easiest to teach. I'm giving a weekly tutorial at my university focusing on data structures and algorithms. Fromn time to time I introduce tools which may prove helpful in future projects like JUnit, Mercurial, Eclipse etc.. I plan to show them some kind of build tool but I'm not sure which one to choose. I by myself have very little knowledge about build tools, except a little experience in using make. It's more the concept of a build tool I want to show them, not a special tool per se. Which would be the most easiest/future proof/whatever tool to show them? I've read a little bit about Gradle, which looks nice, but so far I think Ant could be a good choice (it's a Java course I'm giving).

  Read the article

• How does a programmer think?

  - by Gordon Potter

  This may be a hopelessly vague question. But I am interested to hear whatever logical thought processes people go through when learning a new concept or trying to get their brain around code they might not have ever seen before. Basically, what general steps does one take to to break down problems and what does it take to "get it"? If you were to diagram a flowchart of how your mental process works when you look at code or try to solve a problem what might it look like? What common references, tips, and mental assumptions do you find useful in problem solving? How is this different between different domains? For example in what ways is a web programmer's thought process similar or different from a traditional desktop app developer's process?

  Read the article

• using internationalization on list data

  - by singh

  i am using Struts2 in application. <s:iterator value="listObject"> <s:component template="abc.vm"> <s:param name="text" value="listValue" /> <s:param name="prefix" value="listIndex" /> </s:component> </s:iterator> listValue is a values of list. i am using iterator to traverse the list. now on listValue, i want to put here internationalization concept.so that all the list value can be display based on Locale which store in a list. please suggest!

  Read the article

• Flex4 Application state in a custom component

  - by itarato

  Hi, I'm porting my Flex3 app to Flex4 (FlashBuilder4). I get the whole new state concept, except one thing. In a custom component (separate mxml file) I'm using the main level Application's state. In Flex3 it was: <mx:State name="only_view_mode"> <mx:RemoveChild target="{myComponent.button1}" /> </mx:State> In Flex4 it should be something like that: <mx:State name="only_view_mode" /> and <mx:LinkButton id="button1" excludeFrom="???" /> My question is: how can I access to an Application state from a component? I checked the official reference (http://www.adobe.com/go/learn_flex4_alldocumentation_en) and Google of course but without any success. Thanks in advance

  Read the article

• Beginner having a problem with classes

  - by David

  I'm working through O'Reilly's "Learning Python" and having a problem with classes. I think I understand the concept, but in practice have stumbled upon this problem. Fron page 88-89: >>> class Worker: def __innit__(self, name, pay): self.name=name self.pay=pay def lastName(self): return self.name.split()[-1] def giveRaise(self, percent): self.pay*=(1.0+percent) Then the book says "Calling the class like a function generates instances of a new type ...etc" and gives this example. bob = Worker('Bob Smith', 50000) This gives me this error: TypeError: this constructor takes no arguments. And then I start muttering profanities. So what am I doing wrong here? Thanks for the help.

  Read the article

• When should I use static methods in a class and what are the benefits?

  - by NAVEED

  I have concept of static variables but what are the benefits of static methods in a class. I have worked on some projects but I did not make a method static. Whenever I need to call a method of a class, I create an object of that class and call the desired method. Static variable in a method holds it's value even when method is executed but accessible only in its containing method but what is the best definition of static method? Is calling the static method without creating object of that class is the only benefit of static method? What is the accessible range for static method? What is the syntax to create and calling static method in php? Thanks

  Read the article

• Develop an classic UI or be bold with a newer design?

  - by DeanMc

  Forgive me if this is the wrong place but I am curious as to how other programmers feel about this topic: I am currently working on my portfolio site, it is being designed and built in silverlight 4. I initially started off with a typical stylised e-folio theme much like a standard website in terms of layout and flow. As I work more in the concept stages something has struck me. Am I trying to shoe-horn yesterday into today? What I am talking about is UI expectations. I'm all for clean user interfaces but that does not mean they should not take advantage of new concepts in presentation right? If you where to develop a site in silverlight as your own portfolio piece would you stick to the tried and tested "website" feel or would you try to come up with a UI that is intuitive and complements the technology? I feel that UI discussions are all the more important now that all forms of web development are allowing better methods to engage the user.

  Read the article

• How do I restrict the Open/Save dialog in Windows to one folder?

  - by MindModel

  I spend a significant amount of time helping non-techies use their PC's. I realized most of that time is spent trying to explain to them how the Windows folder hierarchy works, where the "open file" dialog is pointing now, and how to find that Word document they saved. All this time, they're telling me they "just want to print the file". They refuse to learn how to read the PC screen, try to memorize a fixed set of steps, and end up calling me back to tell me their files disappeared again. I realize it's not productive to try to restrict where PC apps (e.g. Quicken) store files. But if there was a Windows utility I could turn on or off that would restrict the Open/Save dialogs in Windows apps, my noob user friends and I would save an enormous amount of time. The goal would be to have all files whose locations are chosen by the Save dialog saved to one folder, and have the Open dialog always point to that folder, until the utility is turned off. Does such a Windows utility exist?

  Read the article

• how to handle solutions/versioning in subversion

  - by Grayson Mitchell

  We are using ankhsvn to check in our .net code, however I have two issues with our setup that I want to resolve. 1\ I thought a key reason to have a tool like svn is that you can rollback to an earlier version of your codebase. If developers are just checking in code, then how can you get version 1.1 (say the current production build), out of subversion? 2\ In VS you have the concept of solutions, many solutions might use the same project. How do I make sure when a developer checks out a solution, they get the appropriate versions of the projects that belong to that solution?

  Read the article

• Minimizing SQL queries using join with one-to-many relationship

  - by Brian

  So let me preface this by saying that I'm not an SQL wizard by any means. What I want to do is simple as a concept, but has presented me with a small challenge when trying to minimize the amount of database queries I'm performing. Let's say I have a table of departments. Within each department is a list of employees. What is the most efficient way of listing all the departments and which employees are in each department. So for example if I have a department table with: id name 1 sales 2 marketing And a people table with: id department_id name 1 1 Tom 2 1 Bill 3 2 Jessica 4 1 Rachel 5 2 John What is the best way list all departments and all employees for each department like so: Sales Tom Bill Rachel Marketing Jessica John Pretend both tables are actually massive. (I want to avoid getting a list of departments, and then looping through the result and doing an individual query for each department). Think similarly of selecting the statuses/comments in a Facebook-like system, when statuses and comments are stored in separate tables.

  Read the article

• Structure accessible by attribute name or index options

  - by Bruno DeGoia

  I am very new to Python, and trying to figure out how to create an object that has values that are accessible either by attribute name, or by index. For example, the way os.stat() returns a stat_result or pwd.getpwnam() returns a struct_passwd. In trying to figure it out, I've only come across C implementations of the above types. Nothing specifically in Python. What is the Python native way to create this kind of object? I apologize if this has been widely covered already. In searching for an answer, I must be missing some fundamental concept that is excluding me from finding an answer.

  Read the article

• How to add a field from a 2nd form?

  - by PowerUser

  Hi all. I'm modifying an existing Lotus view to include a field from another form. I first appended a new column and set it to the desired field. However, after I refreshed, the new column was blank even though I know it has data. I then updated the View Selection formula from: SELECT Form = "A" & StatusIndex < "06" to: SELECT (Form = "A"| Form = "B") & StatusIndex < "06" Still no luck. The view is refreshing successfully, but the new field is still blank. What else is there to add this new column to this view? This is my first time experimenting with Lotus, so if I seem to be missing some major concept, I probably am.

  Read the article

• Magento layout override!

  - by Farid

  Hi, I'm kind of new to the Magento, so forgive me for my stupid question! As I understand the whole concept of Magento is base on overriding the basic components that's are available with in the Magento. So based on my understanding I've decided to update the layout of onepage checkout in Magento. I've created my own layout and in the config file set that my layout updates the checkout module layout. But the problem is it's actually does not update the base layout, it replaces it self with base layout! Should it be act like this or am I wrong?!

  Read the article

• Move the uploads folder in Wordpress

  - by Victor Hurdugaci

  Currently, my Wordpress' upload folder is located in \wp-content\uploads. Initially there was no structure so all files were put there. After a while it was changed to upload the files in \wp-content\uploads\YEAR\MONTH. Now that folder contains a mix of files (those starting with + are folders) like: +wp-content | +2010 | | +02 | | | File-1 | | | File-2 | | | .. | | | File-n | | +01 | | | File-1 | | | File-2 | | | .. | | | File-n | +2009 | | +12 | | | File-1 | | | File-2 | | | .. | | | File-n | | +11 | | | File-1 | | | File-2 | | | .. | | | File-n | +.. | | | .. | Unstructured-file-1 | Unstructured-file-2 | ... | Unstructured-file-n Based on the dates of the unstructured files, I would like to move them in a structured hierarchy (based on date, move it to a folder \wp-content\uploads\YEAR\MONTH). Now, my questions are: Where do I write and execute a script to the movement (I don't have full access to the server, just to a cPanel and to the Wordpress Admin page)? What must be updated so that the links in posts, that reference the unstructured files, point to the new location of those files? Not fully related to the previous description: is it alright to move the whole uploads folder to another location, like \uploads? PS: Moving the files/updating the database manually is not an option :)

  Read the article

• Painting to Form then to Printer

  - by jp2code

  I often find myself needing to create custom reports that do NOT work with Crystal Reports or Report Viewer. Often, I hack a DataTable together and dumping that into a DataGridView control. It is never pretty, and printing is difficult. What I need is a class that I can call using the OnPaint event, but I've never sat down and written all of the Pen and Brush commands until now. Painting to the screen and painting to a printer both use the Graphics object, so I want to build a class that I'd pass in the Graphics object, my window bounds (a Rectangle), and some data (in the form of an instance of my class) that I'd use to paint a form or a sheet of paper. That sounds like a great concept! Surely, someone has done something like this before. Does anyone know of a book, a website tutorial, or video that goes into this? If someone wants to write all that out for me here, more power to you - but I'd think that would be too much work.

  Read the article

• Change color of a table cell using javascript using dropdown menu

  - by Mike Burzycki

  I'd like to use some javascript code to change the background color of a single cell within a table. I have some code below which allows me to change the page background color. This is similar in concept to what I would like to do, but I would really like to be able to change just one cell...not the whole page. I have thought about making the rest of the cell borders and background colors white, leaving the cell I want to manipulate transparent, but I think this probably a brute force method that will cause me trouble down the road. Does anyone have any advice to do this with javascript? The page background color changing code is here: <form name="bgcolorForm">Try it now: <select onChange="if(this.selectedIndex!=0) document.bgColor=this.options[this.selectedIndex].value"> <option value="choose">set background color <option value="FFFFCC">light yellow <option value="CCFFFF">light blue <option value="CCFFCC">light green <option value="CCCCCC">gray <option value="FFFFFF">white </select></form> Thanks for the help, Mike

  Read the article

• How is Java Platform independent when it needs JVM to run ?

  - by happysoul

  Just started learning Java and I am confused about this whole independent platform thingy. Doesn't independent means that Java code should be able to run on any machine and would need no special software to be installed (JVM in this case has to be present in the machine)? Like, for example, we need to have Turbo C Compiler in order to compile C/C++ source code and then execute it.. The machine has to have the C compiler. guess I am confused..Somebody please explain in simple language or may be direct me to a tutorial that explain things in simple language ? that would be great I am just not getting the concept.

  Read the article

• Where should I put code that is supposed to fire AFTER the view has loaded?

  - by Timbo

  I’m writing an objective-c program that does some calculations based on time and will eventually updates UILabels each second. To explain the concept here’s some simplified code, which I’ve placed into the viewDidLoad of the class that handles the view. (void)viewDidLoad { [super viewDidLoad]; // how do i make this stuff happen AFTER the view has loaded?? int a = 1; while (a < 10) { NSLog(@"doing something"); a = a + 1; sleep(1); } } My problem is that the code halts the loading of the view until the loop is all complete (in this case 10 seconds). Where should I put code that I want to fire AFTER the view has finished loading? newbie question I know =/

  Read the article

• What is the best way to migrate documents into Sharepoint (MOSS) 2007?

  - by Jeramie Mercker

  I'm working with a customer that needs to migrate documents from their current document management system (not Sharepoint) into Sharepoint MOSS 2007 retaining document history and metadata. I've written a proof of concept using the Sharepoint web services and that looks promising, but the snag so far seems to be programmatically setting the created date/time and user. The webservices allow the fields to be set but implicitly override them to be the currently logged in user + date/time. For obvious reasons, I need to be able to keep the original created date/time and user on migration. Does anyone know the best way to approach this problem?

  Read the article

• PHP Moving mySQL Tree Node

  - by TK

  I am having trouble trying to move sub nodes or parent nodes up or down... not that good at math. CREATE TABLE IF NOT EXISTS `pages` ( page-id mediumint(8) unsigned NOT NULL AUTO_INCREMENT, page-left mediumint(8) unsigned NOT NULL, page-right smallint(8) unsigned NOT NULL, page-title text NOT NULL, page-content text NOT NULL, page-time int(11) unsigned NOT NULL, page-slug text NOT NULL, page-template text NOT NULL, page-parent mediumint(8) unsigned NOT NULL, page-type text NOT NULL, PRIMARY KEY (page-id) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 ; INSERT INTO pages (page-id, page-left, page-right, page-title, page-content, page-time, page-slug, page-template, page-parent, page-type) VALUES (17, 1, 6, '1', '', 0, 'PARENT', '', 0, ''), (18, 2, 5, '2', '', 0, 'SUB', '', 17, ''), (19, 3, 4, '3', '', 0, 'SUB-SUB', '', 18, ''), (20, 7, 8, '5', '', 0, 'TEST', '', 0, ''); As example how would I move TEST up above PARENT and say move SUB down below SUB-SUB by playing with the page-left/page-right IDs? Code is not required just help with the SQL concept or math for it, would help me understand how to move it better...

  Read the article

• Accurev SCM

  - by FlySwat

  Does anyone use Accurev for Source Control Management? We are switching (eventually) from StarTeam to Accurev. My initial impression is that the GUI tool is severely lacking, however the underlying engine, and the branches as streams concept is incredible. The biggest difficulty we are facing is assessing our own DIY tools that interfaced with starteam, and either replacing them with DIY new tools, or finding and purchasing appropriate replacements. Additionally, is anyone using the AccuWork component for Issue management? Starteam had a very nice change request system, and AccuWork does not come close to matching it. We are evaluating either using Accuwork, or buying a 3rd party package such as JIRA. Opinions?

  Read the article

• Express any number as the sum of 4 prime numbers [Doubts]

  - by WarDoGG

  I was give a problem to express any number as sum of 4 prime numbers. Conditions: Not allowed to use any kind of database. Maximum execution time : 3 seconds Numbers only till 100,000 If the splitting is NOT possible, then return -1 What i did : using the sieve of eratosthenes, i calculated all prime numbers till the specified number. looked up a concept called goldbach conjecture which expresses an even number as the summation of 2 primes. However, i am stuck beyond that. Can anyone help me on this one as to what approach u might take ? The sieve of eratosthenes is taking 2 seconds to count primes till 100,000 :(((

  Read the article

• Asp .Net MVC Viewmodel should be class or struct?

  - by Jonas Everest

  Hey guys, I have just been thinking about the concept of view model object we create in asp.net MVC. Our purpose is to instantiate it and pass it from controller to view and view read it and display the data. Those view model are usually instantiated through constructor. We won't need to initialize the members, we may not need to redefine/override parameterless constructor and we don't need inheritance feature there. So, why don't we use struct type for our view model instead of class. It will enhance the performance.

  Read the article

< Previous Page | 93 94 95 96 97 98 99 100 101 102 103 104  | Next Page >