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  • Myself throwing NullReferenceException... needs help

    - by Amit Ranjan
    I know it might be a weird question and its Title too, but i need your help. I am a .net dev , working on platform for the last 1.5 years. I am bit confused on the term usually we say " A Good Programmer ". I dont know ,what are the qualities of a good programmer ? Is the guy who writes a bug free code? or Can develop applications solely? or blah blah blah...lots of points. I dont know... But as far i am concerned , I know I am not a good programmer, still in learning phase an needs a lot to learn in coming days. So you guys are requested to please help me with this two problems of mine My first problem is regarding the proper Error Handling, which is a most debatable aspect of programming. We all know we use ` try { } catch { } finally { } ` in our code to manage exception. But even if I use try { } catch(exception ex) { throw ex } finally { } , different guys have different views. I still dont know the good way to handle errors. I can write code, use try-catch but still i feel I lacks something. When I saw the codes generated by .net fx tools even they uses throw ex or `throw new Exception("this is my exception")`.. I am just wondering what will be the best way to achieve the above. All means the same thing but why we avoid something. If it has some demerits then it must be made obselete.Anyways I still dont have one [how to handle errors efficiently?]. I generally follow the try-catch(execoption ex){throw ex}, and usually got stucked in debates with leads why you follow this why not that... 2.Converting your entire code blocks in modules using Design patterns of some OOPs concepts. How do you guys decide what architeture or pattern will be the best for my upcoming application based on its working, flow etc. I need to know what you guys can see that I can't. Since I know , I dont have that much experience but I can say, with my experience that experience doesnot comes either from degree/certificates or success you made instead it cames from failures you faced or got stucking situations. Pleas help me out.

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  • need help in site classification

    - by goh
    hi guys, I have to crawl the contents of several blogs. The problem is that I need to classify whether the blogs the authors are from a specific school and is talking about the school's stuff. May i know what's the best approach in doing the crawling or how should i go about the classification?

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  • JQuery Tabs: How to get a list of the tab titles

    - by user340254
    As the title suggest, my question is what is the best way to get or build a list of the titles for the set of tabs. I was thinking I would have to build the list in a for loop, but there does not appear to be any 'name' or 'title' property where you could do something like this: var $tabs = $('contentContainer').tabs(); $tabs.tabs( 'title', index );

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  • How can I integrate Java with .Net?

    - by Luke
    I have one SDK that is available in Java and another SDK that is available for .Net and would like to write a single application that interfaces with both of them. I imagine I will need to use a cross platform communication framework that can support named pipes (or other in memory communication), what is the best choice? After some more research I found Hessian -- does anyone know anything about the maturity of this project?

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  • Combined sign in and registration page?

    - by Ryan
    This is somewhat against rails convention but I am trying to have one controller that manages both user session authentication and user registration. I am having troubles figuring out how to go about this. So far I am merging the User Controller and the Sessions Controller and having the 'new' method deliver both a new usersession and a new user instance. With the new routes in rails 3 though, I am having trouble figuring out how to generate forms for these items. Below is the code: user_controller.rb class UserController < ApplicationController def new @user_session = UserSession.new @user = User.new end def create_user @user = User.new(params[:user]) if @user.save flash[:notice] = "Account Successfully Registered" redirect_back_or_default signup_path else render :action => new end end def create_session @user_session = UserSession.new(params[:user_session]) if @user_session.save flash[:notice] = "Login successful!" redirect_back_or_default login_path else render :action => new end end end views/user/new.html.erb <div id="login_section"> <% form_for @user_session do |f| -%> <%= f.label :email_address, "Email Address" %> <%= f.text_field :email %> <%= f.label :password, "Password" %> <%= f.text_field :password %> <%= f.submit "Login", :disable_with => 'Logining...' %> <% end -%> </div> <div id="registration_section"> <% form_for @user do |f| -%> <%= f.label :email_address, "Email Address" %> <%= f.text_field :email %> <%= f.label :password, "Password" %> <%= f.text_field :password %> <%= f.label :password_confirmation, "Password Confirmation" %> <%= f.text_field :password_confirmation %> <%= f.submit "Register", :disable_with => 'Logining...' %> <% end -%> </div> I imagine I will need to use :url = something for those forms, but I am unsure how to specify. Within routes.rb I have yet to specify either Usersor UserSessions as resources (not convinced that this is the best way to do it... but I could be). I would like, however, the registration and login on the same page and have implemented this by doing the following: routes.rb match 'signup' => 'user#new' match 'login' => 'user#new' What's the best way to go about solving this?

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  • using union in a construct sparql query

    - by simon
    hello, i have such a sparql query: select ?s ?p ?o from <http://localhost:8890/DAV/ranking> where { {<http://seekda.com/providers/cdyne.com/PhoneNotify> so:hasEndpoint ?s. ?s ?p ?o} union {<http://seekda.com/providers/cdyne.com/PhoneNotify> ?p ?o} } but i need a graph query (construct ord describe). unfortunatly i have no clue about how to use unions in construct or describe queries. please help me best regards simon

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  • friendship database schema

    - by Daniel Hertz
    I'm creating a db schema that involves users that can be friends, and I was wondering what the best way to model the ability for these friends to have friendships. Should it be its own table that simply has two columns that each represent a user? Thanks!

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  • Flash Animation and Sound Loop

    - by Joseph
    ok so im having an issue with Flash CS5. I have a sound looping, and my animation is only 13 frames long, while the song is like a minute long, so each time the animation loops threw the default "Loop Playback" a new sound audio is played which os overlapping the previous over and over causing a massive echo effect. Whats the best way to loop both of them insync, or atleast copy and paste the animations frames and make it the length of the song?

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  • JBOSS Monitoring tool on UNIX

    - by The Machine
    I have a web application deployed on a jboss server running on a unix machine. I want to be able to monitor threads, CPU times ,requests, etc. , for gauging application performance on the server. What might be the best way to do this?

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  • How can you use optional parameters in C#?

    - by kurious
    We're building a web API that's programmatically generated from a C# class (the class has method "GetFooBar(int a, int b)" and the API has a method GetFooBar taking query params like &a=foo&b=bar. The classes needs to support optional parameters, which isn't supported in C# the language. What's the best approach?

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  • Associating a modifyable settings file with a class library in C# ?

    - by mishal153
    I have a class library(abc.dll) in which i have used a settings file. An exe (app.exe) references this class library. At runtime if i want to change the values of the settings without having to rebuild the class library/application, what is the best way to approach this problem ? In my current approach the setting values get embeded in the library, and thus i dont see any way to update them without rebuilding the whole thing.

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  • How to check if a given Regex is valid?

    - by Philipp Andre
    Hi folks, I have a little program allowing users to type-in some regular expressions. afterwards i like to check if this input is a valid regex or not. I'm wondering if there is a build-in method in Java, but could not find such jet. Can you give me some advice? Best regards Phil

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  • Applescript - How to iterate over tracks

    - by Bob Rivers
    Hi, I'm a newbie in applescript. I was trying to learn it from various sources, such as Doug's site, macscripter and this forum Just for learning purposes, I was trying to print on the screen all the tracks names using this code: tell application "iTunes" set myTracks to (tracks of library playlist 1) repeat with aTrack in myTracks get name of aTrack end repeat end tell But it only prints one track name, probably the last one... So, how is the best way to iterate over a list? TIA, Bob

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  • Start a thread in a different process in Java

    - by kolm
    Hi there, is it possible to start a new thread in a different process in Java? I mean, I'm running a specific process and main thread, issuing ProcessBuilder for creating a new process. Before start() method is invoked, one must provide the command to be run in another process. Is it possible to start a new thread in newly created process? Thank you in advance for the reply. Best regards.

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