c# barcode generator library open source ABOUT SCALA AND HOW TO INSTALL IT in Font

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CHAPTER 1 ABOUT SCALA AND HOW TO INSTALL IT
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Test that you can access the JDK. Click the Start button and select Run ; in the dialog, type cmd and click the OK button. A DOS window should appear with a prompt that looks like the following:
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C:\Documents and Settings\dpp>
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At this prompt, type java -version and press Enter. You should see something like the following:
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java version "1.6.0_11" Java(TM) SE Runtime Environment (build 1.6.0_11-b03) Java HotSpot(TM) Client VM (build 11.0-b16, mixed mode, sharing)
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Next, test to see that the Java compiler is installed. Type javac -version. You should see something like the following:
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javac 1.6.0_11
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Next, let s install Scala. Download the Scala lzPack installer from http://scala-tools.org/ downloads. This download is typically the first on the page. Save this file to the Desktop or some other place that you can find it. Double-click on the scala-2.7.3.final-installer.jar file to start the install process. Once complete, you need to create the SCALA_HOME environment variable and add Scala to your PATH variable. Follow the same process that you used for creating JAVA_HOME, but name the variable SCALA_HOME and set the PATH to the place Scala was installed. Next, update the PATH variable to include %SCALA_HOME%\bin;. Open a new command prompt and type scala. You should see the following:
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Welcome to Scala version 2.7.3.final (Java HotSpot(TM) Client VM, Java 1.6.0_11). Type in expressions to have them evaluated. Type :help for more information.
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Congratulations, you ve installed Scala.
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CHAPTER 1 ABOUT SCALA AND HOW TO INSTALL IT
Installing on Mac OS X and Linux
Make sure you ve got the Java JDK 1.5 or 1.6 installed. By default, the JDK is installed on Mac OS X 10.4 and greater. Download the Scala lzPack installer from http://scala-tools.org/ downloads. Open a terminal window and change directories to the location where you downloaded the Scala installer. Type the following:
sudo java -jar scala-2.7.3.final-installer.jar
Now select /usr/local/share as the place to install Scala. Once Scala is installed, run the following commands:
cd /usr/local/share sudo ln -s scala-2.7.3-final scala cd /usr/local/bin sudo ln -s ../share/scala/bin/scala scala sudo ln -s ../share/scala/bin/fsc fsc sudo ln -s ../share/scala/bin/scalac scalac sudo ln -s ../share/scala/bin/scaladoc scaladoc
Change to your home directory and type scala. You should see the following:
Welcome to Scala version 2.7.3.final (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_07). Type in expressions to have them evaluated. Type :help for more information. scala>
Congratulations, you ve installed Scala on your machine.
The Scala Community
The Scala community is a wide-ranging, rich, and vibrant group of people. It s a warm and welcoming place for newbies, but it also offers academically rigorous debate and lots of ideas from the cutting edge of computer science made practical.
CHAPTER 1 ABOUT SCALA AND HOW TO INSTALL IT
There are lots of cool people from lots of different backgrounds in the Scala community. You ll find academics like Martin and his team. They actively participate in the community, answering questions from newbies and from seasoned folks about Scala basics, design choices, and more. There s a cohort of extremely skilled and experienced functional programming gurus, including David MacIver. They help drive Scala forward. James Iry is another highly skilled functional programming guru who has a magic touch when it comes to explaining complex Scala concepts to just about anyone. Jon Pretty and Jamie Webb of Sygneca provide consulting services and a ton of backbone for the Scala list and Scala community. You may hear from Jorge Ortiz who, like James, is great at explaining complex Scala topics to folks at all skill levels. The list of Scala mailing lists managed by EPFL (Martin s group) can be found at
http://www.scala-lang.org/node/199. The main Scala list is available at scala@listes.epfl.ch, or you can access it on the Web via Nabble at http://www.nabble.com/Scala-f14147.html. This list is for discussing Scala,
asking questions, and making observations. It s a great place for intermediate and advanced Scala developers to exchange ideas and information. The Scala User list is oriented toward newbies, and it s a great place for folks to learn about Scala by seeing the kind of questions that other newbies have about the language. The e-mail for the list is scala-user@listes.epfl.ch, and it s available on Nabble via a web interface at http://www.nabble.com/Scala---User-f30217.html. The Scala Debate list is a place for seasoned Scala folks to discuss the language, make suggestions, and conspire to move Scala forward. You can post to the list via e-mail at scala-debate@listes.epfl.ch or via Nabble at http://www.nabble.com/Scala--Debate-f30218.html. Note that this list is a hard-core, no-holds-barred discussion of Scala that sees some minor flame wars occasionally break out among the mathematically inclined. If you venture into this forum, keep in mind that it does, from time to time, devolve into discussion that is not kind and gentle and that often the discussion is indecipherable for those of us who do not have a PhD in mathematics. If this is the kind of discussion that is interesting to you, please check out Lambda the Ultimate at
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