Packages neccessitated to learn JAVA
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  1. #1
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    Packages neccessitated to learn JAVA

    Hi folks,

    I'm prepared to start my first lesson to learn JAVA. I found following packages already installed and running on this FedoraCore2 box.

    $ yum search java
    Code:
    ....
    ....
    Looking in installed packages for a providing package
    Installed package: gcc-java.i386 0:3.3.3-7 matches with
     gcc-java
    Installed package: jre.i586 0:1.5.0_01-fcs matches with
     Java Software <jre-comments@java.sun.com>
    Installed package: j2sdk.i586 2000:1.4.2_04-fcs matches with
     Java Software <j2se-comments@java.sun.com>
    Installed package: j2re.i586 0:1.4.2_04-fcs matches with
     Java Software <jre-comments@java.sun.com>
    4 results returned
    Do I need further packages?

    Remark:
    Those packages, I think, came from RH8.0 because this box was previously upgraded from it. I recognized that occasionally there are some minor problems on this box but I can't find time to do a clean installation. In addition I have IBM Globus Tool Kits installed on this box and half tested. I'm prepared to get a new harddrive to do a new/clean installation of FC3. I have the installation CDs available for sometimes.


    I also found following packages available on websites

    $ yum search java
    Code:
    ....
    $ yum search java
    Available package: mx4j.i386 0:1.1.1-9 from base matches with
     Java Management Extensions (JMX)
    Available package: postgresql-jdbc.i386 0:7.4.7-1.FC2.2 from updates-released matches with
     Java 访 PostgreSQL 件
    Available package: compat-libgcj.i386 0:7.3-2.96.126 from base matches with
     gcc  Java 容
    Available package: javamail-devel.i386 0:20031006-4 from base matches with
     CNI headers for developing JavaMail applications
    Available package: javamail-devel.i386 0:20031006-4 from base matches with
     javamail-devel
    Available package: junit.i386 0:3.8.1-4 from base matches with
     Regression testing framework for Java
    Available package: jaf.i386 0:20030319-4 from base matches with
     GNU JavaBeans Activation Framework
    Available package: javamail.i386 0:20031006-4 from base matches with
     GNU JavaMail framework
    Available package: javamail.i386 0:20031006-4 from base matches with
     javamail
    Available package: jikes.i386 0:1.22-0.fdr.1.2 from fedora-stable matches with
     A Java source file to bytecode compiler
    Available package: ant.i386 0:1.5.2-26 from base matches with
     Build tool for Java applications
    Available package: redhat-java-rpm-scripts.noarch 0:1.0.3-2 from base matches with
     Helper scripts for Java rpms
    Available package: redhat-java-rpm-scripts.noarch 0:1.0.3-2 from base matches with
     redhat-java-rpm-scripts
    Available package: jad.i386 0:1.5.8-0.lvn.1.e.2 from livna-stable matches with
     A Java decompiler.
    Available package: jad.i386 0:1.5.8-0.lvn.1.e.2 from livna-stable matches with
     Java Decompiler
    Available package: compat-gcc-java.i386 0:7.3-2.96.126 from base matches with
     Red Hat Linux 7.3 容 Java 
    Available package: compat-gcc-java.i386 0:7.3-2.96.126 from base matches with
     compat-gcc-java
    Available package: struts.noarch 0:1.0.2-6 from base matches with
     Framework for building web applications with Java
    Available package: cup.i386 0:v10k-13 from base matches with
     Parser Generator for Java
    Available package: libgcj34-devel.i386 0:3.4.0-1 from base matches with
     Libraries for Java development using GCC
    Available package: tomcat.i386 0:4.1.27-13 from base matches with
     Java Servlet container
    Available package: libgcj34.i386 0:3.4.0-1 from base matches with
     Java runtime library for GCC version 3.4
    Available package: doctorj.i386 0:4.0.2-0.fdr.2.2 from fedora-testing matches with
     Java source code analyzer
    Available package: compat-libgcj-devel.i386 0:7.3-2.96.126 from base matches with
     使 gcc  Java 容
    Available package: gcc34-java.i386 0:3.4.0-1 from base matches with
     Java support for GCC
    Available package: gcc34-java.i386 0:3.4.0-1 from base matches with
     gcc34-java
    Available package: jlint.i386 0:1.21-0.fdr.1.2 from fedora-stable matches with
     Java program checker
    27 results returned
    ......
    Do I need any of them? TIA

    B.R.
    satimis

  2. #2
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    Get rid of gcc-java - that's the Java-bytecode to native compiler and it will mess you up, more often than not, especially when you're ust getting started.

    What you want to install (and really, the only one you need to start) is the SDK (Software Development Kit). So in this case, it's the j2sdk package.
    Linux User #28251 (April '93)
    Professional Java Geek :cool:

  3. #3
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    Hi crackers,

    Get rid of gcc-java - that's the Java-bytecode to native compiler and it will mess you up, more often than not, especially when you're ust getting started.
    Noted with thanks

    What you want to install (and really, the only one you need to start) is the SDK (Software Development Kit). So in this case, it's the j2sdk package.
    $ yum search j2sdk
    Code:
    .....
    Finding updated packages
    Downloading needed headers
    Looking in available packages for a providing package
    No packages found
    Looking in installed packages for a providing package
    Installed package: j2sdk.i586 2000:1.4.2_04-fcs matches with
     j2sdk
    1 results returned
    "j2sdk.i586 2000:1.4.2_04-fcs" is already running on this FC2 box

    Can I use Eclipse Platform SDK 3.0.1 to replace j2sdk?
    http://eclipse.org/downloads/index.php

    Which of them will be more appropriate. TIA

    B.R.
    satimis

  4. #4
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    I would recomment just visiting

    http://java.sun.com/j2se/1.4/

    and downloading that. Gaurenteed to work with eclipse, no hassle install, straight from the vendor.
    Only dead fish go with the flow....

    Hmmm, what did I miss?

  5. #5
    jayemef Guest
    The FAQ has notes on installing java. Here is a direct link: http://www.fedorafaq.org/#java

    Also, be sure to look at the Java API This will give you a list of the various packages available, as well as how to utilize them.

  6. #6
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    The API is your friend, mentor, and library all rolled into one - and the single most valuable Java reference that exists.
    Linux User #28251 (April '93)
    Professional Java Geek :cool:

  7. #7
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    Hi folks,

    Your advice noted with thanks

    B.R.
    satimis

  8. #8
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    I also recommend you to look into netbeans, a nice IDE for Java. Eclipse is just a tad too big right now.

  9. #9
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    Quote Originally Posted by Omega Blue
    I also recommend you to look into netbeans, a nice IDE for Java. Eclipse is just a tad too big right now.
    Hi Omega Blue,

    Noted with thanks

    B.R.
    satimis

  10. #10
    lexidog Guest
    I disagree with the IDE of choice. While I beleive that Eclipse incredible and Netbeans is...ok ( pretty nice web tools ) I do think that either of these environments are tailored torward someone on their "first lesson" with java.

    There are several tools/environments tailored to aid in the learning of the language. I would suggest to check out BlueJ at http://www.bluej.org

    BlueJ provides a visual class structure diagram and allows someone to get started fairly easily.

  11. #11
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    Hi lexidog,

    There are several tools/environments tailored to aid in the learning of the language. I would suggest to check out BlueJ at http://www.bluej.org

    BlueJ provides a visual class structure diagram and allows someone to get started fairly easily.
    Noted with thanks

    B.R.
    satimis

  12. #12
    Daverz Guest
    Quote Originally Posted by Omega Blue
    I also recommend you to look into netbeans, a nice IDE for Java. Eclipse is just a tad too big right now.
    I think you have it backwards. On my FC3 system with 1G RAM, netbeans 4.1 takes up 37% of memory and eclipse 3.0.2 takes up about 10%.

  13. #13
    gerardrubio Guest
    To start learning java, you just need a Terminal and vi, pico, nano....

  14. #14
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    Quote Originally Posted by gerardrubio
    To start learning java, you just need a Terminal and vi, pico, nano....
    Exactly if you are just wanting to start with the language, then don't start by learning an IDE! Use a very basic editor and code everything by hand.

  15. #15
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    Re: Packages neccessitated to learn JAVA

    Dispose of gcc-java - that is the Java-bytecode to local compiler and it will destroy you, as a general rule, particularly when you're ust beginning.

    What you need to introduce (and extremely, the just a single you have to begin) is the SDK (Software Development Kit). So for this situation, it's the j2sdk bundle.

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