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• Unleash the Power of JavaFX

  - by Angela Caicedo

  It seems that it was just yesterday that we were getting ready for JavaOne 2012.  Now it's over, but it's definitely a great time to go back and watch the sessions you missed, and learn some of the latest news about Java.   For this JavaOne, I presented two sessions and one HOL, all of them related to JavaFX: JavaFX Extreme GUI Makeover Building JavaFX Interfaces with the Real World Unleash the power of JavaFX If you couldn't join us for these sessions, just follow the links and you can watch the videos on demand. For the HOL I've created a repository at GitHub, as many of the attendees wanted to keep the material.   In this repository you can find the lab document, the NetBeans projects for each exercise and it's appropriate solution.  Hope you enjoy! I created and presented a HOL called:  Unleash the power of JavaFX.  In this blog entry I would like to provide you 

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• Architecting a generic search result web control

  - by Bartek Tatkowski

  In a project I'm currently working for we've stumbled upon the need for several kinds of search results presentation controls. The search result are similar, but not identical. For example, in the "office search" result we might want to present the office name and location, while in the "document search" could contain document name, author and publishing date. These fields should be sortable. My current strategy is to employ the Factory pattern and do something like this: ISearchResult officeResults = SearchResultFactory.CreateOfficeSearchResults(data); ISearchResult documentResults = SearchResultFactory.CreateDocumentSearchResults(data); The problem is: I don't know how to implement the markup code. Should I just do Controls.Add(officeResults); in the containing page? Or is there some ASPX trickery to create generic web controls? Or maybe I'm overthinking this and just should create five classes? ;)

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• What tools exist for designing layouts and pre-production templates for Rails 3 applications?

  - by rcd

  I develop Rails 3 applications, but prior to this, my background was a designer (typically making mockups in Photoshop and then breaking them down to HTML5/CSS3). Now, some great tools/templates exist for getting working layouts ready for Rails and other apps quickly, e.g., http://railsapps.github.com/rails-composer/. Many are using CSS Frameworks such as Twitter Bootstrap. I'd like to know whether there is a local app (for Mac) that can design layouts, much the way Dreamweaver would, but that are geared towards being utilized in a Twitter Bootstrap situation alongside Ruby (Rails) or Python apps, etc.

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• Using textbox text in javascript

  - by Jambo

  I am working with Twitter widgets with the following script- <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <input type="button" value="Run Function" onclick="test();" /> <script> function test() { new TWTR.Widget({ version: 3, type: 'profile', rpp: 8, interval: 30000, width: 315, height: 340, theme: { shell: { background: '#333333', color: '#ffffff' }, tweets: { background: '#000000', color: '#ffffff', links: '#4aed05' } }, features: { scrollbar: false, loop: false, live: false, behavior: 'all' } }).render().setUser(document.getElementById('TextBox1').value).start(); } When using the function test(); in the button click it is ocming up with the error - Error: Unable to get value of the property 'value': object is null or undefined So it seems like it is not getting to the value at - (document.getElementById('TextBox1').value) I am not sure why it is null if the text box has a value and then the script is run on the button click?

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• Why does $('#id') return true if id doesn't exist?

  - by David

  I always wondered why jQuery returns true if I'm trying to find elements by id selector that doesnt exist in the DOM structure. Like this: <div id="one">one</div> <script> console.log( !!$('#one') ) // prints true console.log( !!$('#two') ) // is also true! (empty jQuery object) console.log( !!document.getElementById('two') ) // prints false </script> I know I can use !!$('#two').length since length === 0 if the object is empty, but it seems logical to me that a selector would return the element if found, otherwise null (like the native document.getElementById does). F.ex, this logic can't be done in jQuery: var div = $('#two') || $('<div id="two"></div>'); Wouldnt it be more logical if the ID selector returned null if not found? anyone?

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• Assembly as a First Programming Language?

  - by Anto

  How good of an idea do you think it would be to teach people Assembly (some variant) as a first programming language? It would take a lot more effort than learning for instance Java or Python, but one would have good understanding of the machine more or less from "programming day one" (compared to many higher level languages, at least). What do you think? Is it a realistic idea, at least to those who are ready to make the extra effort? Advantages and disadvantages? Note: I'm no teacher, just curious

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• how to use variable from runscript command

  - by poe

  I get some text from a web page 5,19 € 3,50 € I want to split this text after "€". for that I'm using this command runScript|javascript{var prices = storedVars['price'].split("€"); document.write(prices[0]); document.write(prices[1])}; after done that try this command getEval|alert(storedVars['prices[0]']) the answer is that prices is undefined. what is the problem here? how can I get this variable from a runScript command? thanks for helping me!

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• What is the best way to launch a website to make it go viral?

  - by Talvi Watia

  Say for example I have a website that has finished BETA and is ready for full launch. I'm at the stage now I want it to be very visible to start getting traffic. Right now, I am just getting some random search engine hits, word of mouth and a few referrals. How do I break out of this and really get some serious traffic to my site? Do I need to launch a huge ad-campaign? If so, what is the best/most cost effective way to do this? I have tried google adwords but at $0.45+ a click this jsut isn't practical for what I have.

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• Ubuntu install problem: "USB disconnect address 2"

  - by explorex

  Hi, I am installing ubuntu 10.10 and i am having problem in "Who are you?" section. How long will it take to install. i have been waiting for more than 20 minutes. and still i am not being able to click forward button. in ready when you are ... console i am getting message curr DATE ubuntu kernel: [ 684.152061 ] usb 5-1:USB disconnect address 2 whats happening i have no idea, but live stick is working fine. I am installing for USB drive and i have internet turned off edit:: now i am getting message curr Date ubuntu: CRON[9268]: (root) CMD (start -q anacron || :) for past 15 minutes

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• Detecting DOM event support in Firefox

  - by Andy E

  What's the best way to detect event support in Firefox. Opera, Internet Explorer and Safari/Chrome all support eventName in object, but Firefox doesn't. My test case is this: javascript:alert("onclick" in document.createElement("a")) Which alerts true when entered into the address bar on the aforementioned browsers, and alerts false for Firefox. I figured out a solution using typeof on an event like so: var a = document.createElement("a"); a.setAttribute("onclick", ""); alert(typeof(a.onclick) == "function"); Is there a better method of detecting event support in Firefox?

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• php search and replace

  - by Dave

  I am trying to create a database field merge into a document (rtf) using php i.e if I have a document that starts Dear Sir, Customer Name: [customer_name], Date of order: [order_date] After retrieving the appropriate database record I can use a simple search and replace to insert the database field into the right place. So far so good. I would however like to have a little more control over the data before it is replaced. For example I may wish to Title Case it, or convert a delimited string into a list with carriage returns. I would therefore like to be able to add extra formatting commands to the field to be replaced. e.g. Dear Sir, Customer Name: [customer_name, TC], Date of order: [order_date, Y/M/D] There may be more than one formatting command per field. Is there a way that I can now search for these strings? The format of the strings is not set in stone, so if I have to change the format then I can. Any suggestions appreciated.

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• OPN Solutions Catalog Goes Mobile!

  - by Richard Lefebvre

  We are pleased to announce the launch of a mobile-ready OPN Solutions Catalog Features include: A fluid search and browse experience regardless of device (phone, tablet, or desktop) Streamlined design and reorganized search facets, making it easier for customers to search and browse partner profiles and solutions The OPN Solutions Catalog is a free marketing tool for all active Oracle PartnerNetwork members. If you are an OPN partner… take advantage of it! To learn more about the new catalog, watch the Solutions Catalog Training which includes best practices and a demo on how to update your profile. Spend a few minutes with our experts to learn how you can expand your market reach and showcase your offerings to our customers, partners, and Oracle employees worldwide. Questions? Visit the Solutions Catalog Resource page or contact the Partner Business Center.

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• Preparing yourself for Code challenges

  - by Daniel Fath

  Just a few days ago I discovered Codility, and I tried their challenges. And I must say. I got my behind handed to me on a platter. I'm not sure what the problem was, but I'll lick my wounds and wait for the solution to come out and compare it with my own. In the meantime, I want to get ready for the next challenge so I'm reading their previous blog posts and seeing how to solve their previous problems. There are a lot of new things I haven't heard about like (Cartesian trees, various sort algorithms, etc.) So, how does one prepare for such challenges (especially the O(x) time and space complexity). What should I read to prepare for such a task?

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• changing css properties via javascript

  - by tic

  I need a function to change the appearance of some elements in my html page "on the fly", but I am not able to do. The problem is that I cannot use a command like document.write ('body {background-color: #cccccc;}'); because I need to make the changes effective when the page is already loaded, using a link like <a onmouseclick="Clicker(1)" href="#">clic</a> and I cannot use a command like document.body.style.background='#cccccc'; because I do not know if it can be applied to other not so easy cases, because I need to change the appearance of elements such as td.myclass or sibling elements such as th[scope=col]+th[scope=col]+th[scope=col]. How can I do it? Thanks!

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• How to render a retro-like pixel graphics from 3d models?

  - by momijigari

  I was wondering if there's a possibility to render a retro-pixel-like graphics from 3d model in real time? I'm talking about the Starfarer-like graphics. I know it's hand drawn, and it's 2d. But if I need a 3d objects with the same aesthetics? I'm currently working with Flash. But I don't need any ready-solutions, I just want to understand the principle from any other platform if there is one. So if anybody met anything like this I would appreciate your help. (If it's not possible to do in real time, I could at least pre-render a sequence of sprites. It would be much better than creating hundreds of hand-drawn ones)

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• Analysis and Design for Functional Programming

  - by edalorzo

  How do you deal with analysis and design phases when you plan to develop a system using a functional programming language like Haskell? My background is in imperative/object-oriented programming languages, and therefore, I am used to use case analysis and the use of UML to document the design of program. But the thing is that UML is inherently related to the object-oriented way of doing software. And I am intrigued about what would be the best way to develop documentation and define software designs for a system that is going to be developed using functional programming. Would you still use use case analysis or perhaps structured analysis and design instead? How do software architects define the high-level design of the system so that developers follow it? What do you show to you clients or to new developers when you are supposed to present a design of the solution? How do you document a picture of the whole thing without having first to write it all? Is there anything comparable to UML in the functional world?

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• How to connect to the process

  - by Polaris

  I have WPF Application. My Application consist of 2 exe files: Notifier.exe and MainApp.exe. Notifier is system tray popup application which check the remote server in equal intervals and get the list of current documents of user. When user click on one of the documents in list in Notification popup I open MainApp.exe and show required document in new tab. But When user click on another document in list it open new MainApp.exe process. Question: How Can I connect specific (already opened) process in the operating system and create some object in it?

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• Internet Connection Problems

  - by Confused One

  I just installed Ubuntu 11.04 onto a laptop. There is no list of automatic connections when I click on the internet connection symbol. Enable Wireless was unchecked, so I checked it. However, it continues saying "wireless is disabled." Soft is blocked, and when I tried rfkill unblock wifi it told me that the device was not ready. I tried to counter this with what I found on this thread but nothing worked. I have tried manually entering my Wireless information, but this does not help. Is there a solution?

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• Javascript one-liners

  - by peoro

  Often I find some really cool javascript one liners that you can copy and paste into your browser address bar in order to get some fancy effects or even useful ones. This, for example, will let you edit anything on the page. javascript:document.body.contentEditable='true'; document.designMode='on'; void 0 What is your favorite? EDIT: I know that technically all these snippets are just javascript scripts that gets evaluated by the browser as if they were defined in the page. I also know that many browsers have got extensions to let you run javascript code (also letting you store scripts somewhere, providing a good editor etc etc). However that's not so practical; I'm not a javascript developer, haven't got firebug installed, and I can't install it anywhere I go. My idea idea is that of collecting the best "mini-scripts" that whoever can just copy and paste in his browser without the need of installing extensions and stuff.

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• Progressbar: Force element.innerHTML update before javascript sort call

  - by maras

  Hi, what is the best practice for this scenario: 1) User clicks "Sort huge javascript array" 2) Browser shows "Sorting..." through element.innerHTML="Sorting" 3) Browser sorts huge javascript array (100% CPU for several seconds) while displaying "Sorting..." message. 4) Browser shows result. Pseudo code: ... <a href="#" onclick="sortHugeArray();return false">Sort huge array</a> ... function sortHugeArray(){ document.getElementById("progress").innerHTML="Sorting..."; ...do huge sort ... ...render result... document.getElementById("progress").innerHTML=result; } When i do that this way, browser never shows "Sorting...", it freezes browser for several seconds and shows result without noticing user... Thank you for advice.

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• WPF webbrowser - get HTML downloaded?

  - by Mathias Lykkegaard Lorenzen

  I'm listening to the WPF webbrowser's LoadCompleted event. It has some navigation arguments which provide details regarding the navigation. However, e.Content is always null. Am I paying attention to the wrong event here? How can I fetch the HTML that was just downloaded as string? I tried some things which I would consider hacks, but they return a string of HTML, even though that was not the string downloaded. For instance, with that method when I go to a page which just sends me the string abc, I get the result <document><body>abc</body></document> or something similar. I would prefer not getting into any more hacks than nescessary to get this running.

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• Search for the Content You Don't Want to Miss

  - by Oracle OpenWorld Blog Team

  by Meg Ehman The Oracle OpenWorld 2013 content catalog is now live—more accessible than ever with all you need to know about sessions, speakers, demos, labs, user groups, exhibitors, and more. This year, for the first time, you’ll find all Oracle conference content in a single catalog. You can browse the entire catalog at one time, or filter your search by conference, product, session, speaker, or other keywords.  If you find a session you think friends or colleagues would like to attend, share it with them through Facebook or Twitter. Start checking out Oracle OpenWorld content now to make sure you know how to plan your week at the conference. Then when Schedule Builder goes live in early August you’ll be ready to sign up quickly to have the best chance for getting into all of the great sessions you want to.   Search Content Catalog NowLearn More about Oracle OpenWorldRegister for Oracle OpenWorld

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• Service pack 1 on the way for Windows 7 and Windows Server 2008 R2

  - by John Breakwell

  On the MSMQ front, only two hotfixes are listed: 2028997 - FIX: Message Queuing may become unresponsive in Windows 7 or in Windows Server 2008 R2 974813 - FIX: You cannot send or receive messages by using Message Queuing 4.0 or Message Queuing 5.0 after you configure the BindInterfaceIP registry entry. from a total of 625 documented for the service pack. There may, of course, be undocumented changes where an update was not previously released separately and so has no associated KB article published. According to the Core Team, Volume Licensed, MSDN and TechNet subscribers get access February 16th, 2011. All customers get access February 22nd, 2011, through Windows Update and direct download So get ready to start testing.

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• After I appendChild() in ie6, do stylesheets apply to that element?

  - by rickharrison

  I am creating some elements in javascript like so: var parent = document.createElement('div'); parent.setAttribute('id', 'parent'); var child = document.createElement('div'); child.setAttribute('class', 'child'); parent.appendChild(child); otherelement.appendChild(parent); I have a stylesheet which has styles for #parent and .child. However, it appears the styles are being applied to the parent but not the child. Does ie6 only support styles on id's and not classes or am I doing something wrong?

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• How do I access a DIV from javascript when using a master page?

  - by Rising Star

  I have a web page that contains a "div" element. On the page, there is javascript to reference the div: document.getElementById('divId'). This was working fine until another developer redesigned the page to use an ASP master page. Now, document.getElementById('divId') returns null. It appears that ASP.net prepends some characters to the names of elements within contents forms when you use a master page. How can I know what the id of the div is when the page loads? Update Allow me to give a specific example to clarify the question: My page had a div with ID divNotice. After changing my page to use a master page, I see when I print the source to the page that renders that the div ID is ctl00_ContentPlaceHolder1_divNotice. My question is, how am I supposed to know what the div ID is going to be when the framework is done with it?

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