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  • how to uninstall the jdk 1.7.0 in the ubuntu

    - by kaiwii ho
    i encounter a very strange problem,and here is the detail: i'm going to uninstall the jdk 1.7.0.but when i use the rpm to check the appropriate name of the package,it prompt nothing.Anyway,when i use the command java -version,it will prompt the detail of the jdk 1.7.0. below is the detail: root@kaiwiiho:/usr/java# rpm -qa|grep jdk root@kaiwiiho:/usr/java# java -version java version "1.7.0" Java(TM) SE Runtime Environment (build 1.7.0-b147) Java HotSpot(TM) Server VM (build 21.0-b17, mixed mode) root@kaiwiiho:/usr/java# rpm -qa|grep jdk root@kaiwiiho:/usr/java# so what happen?And how can i uninstall it?thx

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  • How do I turn of "auto-echo" in bash when I 'cd'?

    - by Avery Chan
    I don't know when this started happening but now, every time I cd to a directory it echoes the path right before it changes directories. This happens when I log into a server but doesn't happen on my local machine. The server is running Linux. My local machine is running Mac OS X. I searched the Google as well as looked at the bash man page but I couldn't find anything. My .bashrc/.bash_profile doesn't have anything related to 'cd' (that I know of). How do I modify this "feature"?

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  • windows 8.1 sync wallpaper slideshow

    - by March Ho
    I have the same slideshow in the exact same folder (C:\Images) on two computers which are syncing their settings over the Microsoft account (mail and other settings synced normally), and I have independently configured them to display wallpaper slideshows from that folder. However, the "Synced Theme" in Personalise Desktop repeatedly resets to a static image. Is there a way to ensure the sync sticks?

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  • how to get data in sheet2 from sheet1 in excel

    - by romen-leung
    I have two worksheets, Sheet1 Column A = Deptname Column B = Headname Column C = Username Sheet2 Column A = Headname (???) Column B = Username Column C = UserID "Headname" column in Sheet2 is blank and what I wanted to do is to get "Headname" from Sheet1 by using "Username". I have tried to use VLookup but it did not work if username in Sheet1 and Sheet2 is not exactly same. E.G, given two differents Username as shown on below. Username in Sheet1 is "Jenny Oh" and "Chan Shu Mei" Username in Sheet2 is "ITC - Jenny Ong" and "IA: Chan Shu Mei" Any ideas whether it can be done? Thankf in advance for any help.

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  • .NET remoting manual configuration

    - by Quandary
    Question: In .NET remoting, I configure the client like this from a config file RemotingConfiguration.Configure("AsyncRemoteAPIclient.exe.config", False) Dim obj As New RemoteAPI.ServiceClass() (with this AsyncRemoteAPIclient.exe.config) <system.runtime.remoting> <application> <client> <wellknown type="RemoteAPI.ServiceClass, ServiceClass" url="http://localhost:8080/ServiceClass.rem" /> </client> <channels> <channel ref="http" port="0" /> </channels> </application> But when I replace the config file with manual configuration with the below code, it stops working, and starts complaining "ServiceClass or dependency not found". Dim chan As New System.Runtime.Remoting.Channels.Http.HttpChannel(0) System.Runtime.Remoting.Channels.ChannelServices.RegisterChannel(chan, False) ' Create an instance of the remote object Dim obj As RemoteAPI.ServiceClass obj = CType(Activator.GetObject(GetType(RemoteAPI.ServiceClass), "http://localhost:8080/ServiceClass.rem"), RemoteAPI.ServiceClass) What's wrong ?

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  • Properties in Remoting

    - by Evl-ntnt
    Server: Host h = new Host(); h.Name = "JARR!!"; TcpChannel channel = new TcpChannel(8080); ChannelServices.RegisterChannel(channel); RemotingConfiguration.RegisterWellKnownServiceType(typeof(Host), "Server", WellKnownObjectMode.Singleton); Client: TcpChannel chan = new TcpChannel(); ChannelServices.RegisterChannel(chan); remoteHost = (Host)Activator.GetObject(typeof(Host), "tcp://127.0.0.1:8080/Server"); Class: [Serializable] public class Host: MarshalByRefObject { public string Name{get; set;} public Host(){} public Host(string n) { Name = n; } public override string ToString() { return Name; } } Connection OK, 8080 port opened, on client side remoteHost is not null, but remoteHost.Name == "" Why?

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  • OCFS2 Now Certified for E-Business Suite Release 12 Application Tiers

    - by sergio.leunissen
    Steven Chan writes that OCFS2 is now certified for use as a clustered filesystem for sharing files between all of your E-Business Suite application tier servers.  OCFS2 (Oracle Cluster File System 2) is a free, open source, general-purpose, extent-based clustered file system which Oracle developed and contributed to the Linux community.  It was accepted into Linux kernel 2.6.16.OCFS2 is included in Oracle Enterprise Linux (OEL) and supported under Unbreakable Linux support.

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  • Three Ways of Giving Photoshop Lessons

    Learning how to master Photoshop is always a popular thing that many students, photographer and art designers get addicted on. And there had been millions of tutorials, lessons being made for them fr... [Author: Adward Chan - Computers and Internet - April 02, 2010]

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  • links for 2010-03-24

    - by Bob Rhubart
    @dhinchcliffe: When online communities go to work "As we see a growing set of examples of successful online communities in the enterprise space (both internally and externally), the broad outlines are emerging of what is turning into a vital new channel for innovation, business agility, customer relationships, and productive output for most organizations: Online communities as one of the most potent new ways to achieve business objectives, both in terms of cost and quality." -- Dion Hinchcliffe (tags: enterprisearchitecture entarch enterprise2.0 socialmedia) Steven Chan: WebCenter 11g (11.1.1.2) Certified with E-Business Suite Release 12 Steven Chan shares information on WebCenter 11g's (11.1.1.2) certification with Oracle E-Business Suite Release 12, along with a list of certified EBS 12 Platforms (tags: oracle otn enterprise2.0 webcenter ebs) @oraclenerd: 1Z0-052 - Exploring the Oracle Database Architecture Oracle ACE Chet "Oraclenerd" Justice shares a list of resources/documentation covering Oracle Database Architecture. (tags: oracle otn oracleace dba certification architecture) @oraclenerd: 1Z0-052 - Books "I don't believe I have ever purchased a book on or about Oracle. The documentation provided, especially for the database, is top notch. There is so much information available out there if you just know how to find it. Reading AskTom for years didn't hurt either." -- Chet "@oraclenerd" Justice. (tags: otn oracle oracleace certification dba) Lucas Jellema: Castle in the clouds – Building the Connexys SaaS application with Fusion Middleware Oracle ACE Director Lucas Jellema shares the slides from the presentation he and colleague Arne van der Ing submitted for OBUG 2010. (tags: otn oracle oracleace cloud saas obug fusionmiddleware connexys) John Burke: Why Your ERP System Isn't Ready for the Next Evolution of the Enterprise "[ERP] has to become a stealthy modern app to help you quickly adapt to business changes while managing vital information. And through modern middleware it will connect to everything. So yes ERP as we've know it is dead, but long live ERP as a connected application member of the modern enterprise." -- John Burke, Group VP, Applications Business Unit, Oracle (tags: oracle otn entarch erp) Darwin-IT: Postfix for handling mail in your integration solution "It took me some time to understand Postfix. I was quite overwhelmed by the options. And it took me some time to figure out how to configure it for this particular usecase...But as with most other things..it turns out to be simple." -- Martien van den Akker (tags: oracle linux soa postfix) TheServerSide.com: Cameron Purdy at TSSJS 2010: If Java beats C++, what's next? ''It turns out that Java performance is much better on modern architecture. That is because of multicore processors and in-lining.'' -- Cameron Purdy, as quoted in an article by Jack Vaughn (tags: oracle java otn c++)

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  • Stay Informed with EBS Newsletters, Blogs and Social Media

    - by Oracle_EBS
    NewslettersStay informed by one of the many E-Business Newsletters — ACT For the latest information, product news and updates, support news and alerts and archived editions. Social Media Channels Follow My Oracle Support by one of these social media channels: Oracle EBS Twitter Oracle EBS Blog Oracle E-Business Suite Technology Blog (Steven Chan)

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  • ArchBeat Link-o-Rama for November 8, 2012

    - by Bob Rhubart
    Webcast: Meeting Customer Expectations in the New Age of Retail Keep your eye on this live webcast as Sanjeev Sharma (Principal Product Director, Oracle Exalogic), Kelly Goetsch (Senior Principal Product Manager, Oracle Commerce), and Dan Conway (Senior Product Manager, Oracle Retail) offer real-world examples of business value derived by running customer-facing applications on Oracle Engineered Systems. Live, Thursday Nov 8, 10am PT/ 1pm ET. Solving Big Problems in Our 21st Century Information Society | Irving Wladawsky-Berger "I believe that the kind of extensive collaboration between the private sector, academia and government represented by the Internet revolution will be the way we will generally tackle big problems in the 21st century. Just as with the Internet, governments have a major role to play as the catalyst for many of the big projects that the private sector will then take forward and exploit. The need for high bandwidth, robust national broadband infrastructures is but one such example." — Irving Wladawsky-Berger SOA Still Not Dead: Ratification of Governance Standard Highlights SOA’s Continued Relevance So just about the time I dig into Google Trends to learn that the conversation about governance peaked in 2004, along comes all this InfoQ article by Richard Seroter. And of course you've already listened to the OTN Archbeat Podcast about governance, right? Right? Implications of Java 6 End of Public Updates for Oracle E-Business Suite Users | Steven Chan The short version is: "Nothing will change for EBS users after February 2013." According to Steven Chan, "EBS users will continue to receive critical bug fixes and security fixes as well as general maintenance for Java SE 6." You'll find additional information on Steven's blog. ADF Mobile Custom Javascript – iFrame Injection | John Brunswick The ADF Mobile Framework provides a range of out of the box components to add within your AMX pages, according to John Brunswick. But what happens when "an out of the box component does not directly fulfill your development need? What options are available to extend your application interface?" John has an answer. How Data and BPM are married to get the right information to the right people at the right time | Leon Smiers "Business Process Management…supports a large group of stakeholders within an organization, all with different needs," says Oracle ACE Leon Smiers. "End-to-end processes typically run across departments, stakeholders and applications, and can often have a long life-span. So how do organizations provide all stakeholders with the information they need?" Leon provides answers in this post. Thought for the Day "(When) asking skilled architects…what they do when confronted with highly complex problems…(they) would most likely answer, 'Just use Common Sense.' (A) better expression than 'common sense' is 'contextual sense' — a knowledge of what is reasonable within a given content. Practicing architects through eduction, experience and examples accumulate a considerable body of contextual sense by the time they're entrusted with solving a system-level problem…" — Eberhardt Rechtin (January 16, 1926 – April 14, 2006) Source: SoftwareQuotes.com

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  • ArchBeat Link-o-Rama for 2012-09-21

    - by Bob Rhubart
    The Real Architects of Los Angeles: OTN Architect Day in LA - Oct 25 No gossip. No drama. No hair pulling. Just a full day of technical sessions and peer interaction focused on using Oracle technologies in today's cloud and SOA architectures. The event is free, but seating is limited, so register now. Thursday October 25, 2012. 8:00 a.m. – 5:00 p.m. Sofitel Los Angeles, 8555 Beverly Boulevard, Los Angeles, CA 90048. Why IT is a profession in 'flux' | ZDNet I usuallly don't post two items from the same person in one day, but this post from ZDNet blogger Joe McKendrick deals with some critical issues affecting those in IT. As McKendrick puts it: "IT professionals are under considerable pressure to deliver more value to the business, versus being good at coding and testing and deploying and integrating." Cloud, automation drive new growth in SOA governance market | ZDNet "SOA governance tools and processes learned over the past decade are now underpinning cloud projects as they scale across enterprises," reports Joe McKendrick. But there remains a lack of understanding about SOA Governance. For a broader discussion of the importance of IT governance check out the lastest OTN Archbeat Podcast: By Any Other Name: Governance and Architecture How I Simplified the Installation of Oracle Database on Oracle Linux 6 Michele Casey's update of Ginny Henningsen's original article. This version shows how to simplify the installation of Oracle Database 11g on Oracle Linux 6 by installing the oracle-rdbms-server-11gR2-preinstall RPM package. Fault Handling Slides and Q&A | Ronald van Luttikhuizen Oracle ACE Director Ronald van Luttikhuizen shares the slides and a Q&A transcript from a presentation he and fellow ACE Director Guido Schmutz gave at the recent Oracle OpenWorld and JavaOne preview event organized by AMIS Technology. BPM ADF Task forms. Checking whether the current user is in a BPM Swimlane | Christopher Karl Chan "The tricky part here is that the ADF Task Details Form is in fact part of a separate J2EE application to the main workspace," says Oracle Fusion Middleware A-Team member Christopher Karl Chan. "So if you try to use Java or Expression Language to get the logged in user you will only find anonymous and none of the BPM Roles you will be expecting. So what to do?" Don't guess—read the post and find out. Thought for the Day "The speed of change makes you wonder what will become of architecture. " — Tadao Ando Source: BrainyQuote

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  • Oracle Forms and Java JRE Auto-Update Problems

    - by Grant Ronald
    There have been a few threads regarding problems with the auto update of the JRE and Oracle Forms applications.  See this entry from Steve Chan and this entry on the error FRM-92095: Oracle Jnitiator version too low - please install version 1.1.8.2 or higher.  There are a few points to be aware of so Support have written up a note to hopefully make things clearer.  Log onto your Oracle support account and search for Note: 1470123.1.

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  • Upcoming Webcast: ATG Live Webcast April 5: Managing Your Oracle E-Business Suite with Oracle Enterprise Manager

    - by Oracle_EBS
    Please consider attending the following Webcast announced today on Steven Chan's E-Business Blog linked below.  Please visit his blog to learn more and to register. Managing Your Oracle E-Business Suite with Oracle Enterprise Manager   The topics covered in this webcast will be: Manage your EBS system configurations Monitor your EBS environment's performance and uptime Keep multiple EBS environments in sync with their patches and configurations Create patches for your EBS customizations and apply them with Oracle's own patching tools Visit here to learn more and join today!

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  • Ruby on Rails deployment, on "thin" server with lot of attachments

    - by Horace Ho
    A lot of PDFs are stored inside MySQL as a BLOB field for each PDF file. The average file size is 500K each. The Rails app will stream the :binary data as file downloads, where there is a user click on the download link. Assume there is a maximum of 5 users downloading 5 PDFs concurrently, what kind of deployment setup parameters I should be aware of? e.g. for the case of thin: thin start --servers 3 whether --servers 3 is good enough (or 5 or more is needed) for the above example? The 2nd question is whether 'thin' a capable solution? Thanks!

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  • how does presentPopoverFromRect work?

    - by Horace Ho
    I don't understand how to define the (CGRect)rect in order to control the position of popover, and the position of the arrow. For example, I have a 1004 x 768 view, how can I put the popover at lower right of the screen, and point the arrow at 700 (x) 1000 (y)? Thakns!

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  • activemq-maven-plugin ignore files in classpath?

    - by Oscar Chan
    I have been trying to get activemq-maven-plugin to run activemq with configuration in classpath of the bundle. However, I don't have much luck. It seems that the activemq-maven-plugin just ignore resources (resources/main/conf/activemq.properties) the local bundle. I checked the jar and target/classes and they are built into the right local. I am able to get plugin to run (mvn activemq:run) if I take out the PropertyPlaceholderConfigurer bean in the activemq.xml Did I do anything wrong? Here is the output [INFO] ------------------------------------------------------------------------ [ERROR] BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] Failed to start ActiveMQ Broker Embedded error: Could not load properties; nested exception is java.io.FileNotFoundException: class path resource [conf/activemq.properties] cannot be opened because it does not exist [INFO] ------------------------------------------------------------------------ [INFO] For more information, run Maven with the -e switch [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2 seconds [INFO] Finished at: Mon May 03 15:56:05 PDT 2010 [INFO] Final Memory: 11M/79M [INFO] ------------------------------------------------------------------------ Here is the pom.xml, which I specific the plugin to look up activemq.xml via file, that works. However, in the activemq.xml <?xml version="1.0"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>oc.test</groupId> <artifactId>mq</artifactId> <version>0.1</version> <name>mq</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.activemq.tooling</groupId> <artifactId>maven-activemq-plugin</artifactId> <version>5.3.1</version> <configuration> <configUri>xbean:file:src/main/resources/conf/activemq.xml</configUri> <fork>false</fork> <systemProperties> <property> <name>javax.net.ssl.keyStorePassword</name> <value>password</value> </property> <property> <name>org.apache.activemq.default.directory.prefix</name> <value>./target/</value> </property> </systemProperties> </configuration> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring</artifactId> <version>2.5.5</version> </dependency> </dependencies> </plugin> </plugins> </build> </project> Here is the src/main/resources/conf/activemq.xml <?xml version="1.0"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:amq="http://activemq.apache.org/schema/core" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd "> <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <value>classpath:conf/activemq.properties</value> </property> <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/> </bean> <broker xmlns="http://activemq.apache.org/schema/core" brokerName="localhost" dataDirectory="./data"> <!-- The transport connectors ActiveMQ will listen to --> <transportConnectors> <transportConnector name="openwire" uri="tcp://localhost:61616"/> </transportConnectors> </broker> </beans> Here is the src/main/resources/conf/activemq.properties activemq.port=61616

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  • Ruby/Rails display general screen when modifications being performed on server

    - by john chan
    I have a ruby on rails app running a server and sometimes it needs to be taken down for updates/etc. As of now, one way I see to have a general display screen during update periods (when the app is down) is to substitute the files within /srv/www/ directory to just have it display a general screen everywhere that the user could possibly navigate to. I also thought of having a central controller file that connects all others (essentially a main) but this seems counter intuitive for rails. There are many external links to these different components of the site that the user could navigate to from outside and I need to make sure that they always receive this general update screen when the app is taken down for a little. I was wondering if anyone had any other ideas.... maybe a library or something like that, I can't seem to find anything online. any suggestions would be appreciated. Thanks

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  • Calculating pi using infinite series in C#

    - by Jonathan Chan
    Hi! I tried to write the following program in C# to calculate pi using infinite recursion, but I keep getting confused about integer/double/decimal division. I really have no clue why this isn't working, so pardon me for my lack of understanding of strongly typed stuff, as I'm still learning C#. Thanks in advance! using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication1 { class Program { public static int Main(string[] args) { int numeratornext = 2; int denominatornext = 5; decimal findto = 100.0M; decimal pi = 0.0M; decimal halfpi = 1.0M; int seriesnum = 1; int seriesden = 3; for (int i = 0; i < findto; i++) { halfpi += Decimal.Divide((decimal)seriesnum, (decimal)seriesden); //System.Console.WriteLine(Decimal.Divide((decimal)seriesnum, (decimal)seriesden).ToString()); seriesnum *= numeratornext; seriesden *= denominatornext; numeratornext++; denominatornext += 2; } pi = halfpi * 2; System.Console.WriteLine(pi.ToString()); System.Console.ReadLine(); return 0; } } }

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  • ItemsControl ItemsTemplate vs ContentTemplate

    - by Allen Ho
    Hi, Is there any difference between setting the ContentTemplate of a ListBoxItem, compared to setting the ItemsTemplate on the ListBox? Or is it just a preference? Just say you set the ItemsTemplate of the ListBox can you still get the Data Template you assigned to the ListBox ItemsTemplate via the ListBoxItems ContentTemplate? ie. Like below ListBoxItem myListBoxItem = ...; ContentPresenter myContentPresenter = FindVisualChild(myListBoxItem); DataTemplate myDataTemplate = myContentPresenter.ContentTemplate;

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  • Does Watir work under ruby 1.9.1?

    - by Horace Ho
    Here is the .rb program: require 'watir' b = Watir::Browser.new the 2nd line will trigger a ""The program can't start because msvcrt-ruby18.dll is missing from your computer!" error. I am using 1.9.1p378 on win32 ruby 1.9.1p378 (2010-01-10 revision 26273) [i386-mingw32] How can I fix this? Thanks for your attention.

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