Re: [Java] Development Kit Issues

Ali Helmy wrote:

Hey mate,

Thanks for the information... i tried your suggestion about the BufferedReader and it worked... however:

Possibly there's still some gcj toolset stuff left. If you want to solve this clean, check out the jpackage.org <http://jpackage.org/> site and download the rpm building package. It allows you to create an rpm file for the jdk which is compatible with "alternatives". This way, you can switch the system JRE between gcj and the Sun JDK (and others).

umm, can you provide more detailed info?

On 26/03/06, *Klaasjan Brand* < klaasjan@xxxxxxxxx <mailto:klaasjan@xxxxxxxxx>> wrote:

    On 3/26/06, *Ali Helmy* < alihelmy@xxxxxxxxx
    <mailto:alihelmy@xxxxxxxxx>> wrote:

        Hey mates,

        I need to inquire about two issues in particular regarding
        JDK... Firstly, so that you can understand my background:

        - I'm running FedoraCore 5
        - In the FC installation, I installed the regular Java
        Development libs & tools (such as eclipse, gcj, ...etc)
        - I downloaded and installed the JDK1.5 and the JVM from Sun
        Microsystems, Inc.
        - I removed all the java related bins in the /usr/bin folder,
        then recreated the links to the new bins in the
        /usr/java/jdk1.4.0/bin library to make the javac, java, jar,

javah... etc commands use the new JDK

        Now here's my problems:

        A) When i create a jar file (ex: jar -cf Anyfile.jar
        Anyclass.class), the manifest file created with it
        (META-INF/MANIFEST) lists:
        Manifest-Version: 1.0
        Created-By: 0.92-gcc
        where you see, that my problem is that the manifest file was
        created by "gcc" apparently, and not 1.5.0_01 (Sun
        Microsystems Inc.) which should have been the case... so, how
        can i change the manifest file maker?


    Possibly there's still some gcj toolset stuff left. If you want to
    solve this clean, check out the jpackage.org <http://jpackage.org>
    site and download the rpm building package. It allows you to
    create an rpm file for the jdk which is compatible with
    "alternatives". This way, you can switch the system JRE between

gcj and the Sun JDK (and others).

        And the Note I Get after compiling with (javac
        -Xlint:deprecation ...etc):
        [ahelmy@Laptop Java]$ javac -Xlint:deprecation
        ReadingFromConsole.java
        ReadingFromConsole.java:12: warning: [deprecation] readLine()
        in java.io.DataInputStream has been deprecated
                                UsrInput = IStream.readLine();

        So, does anyone know a replacement to read directly a line of
        user input from the ( System.in <http://System.in>) through a
        console? Because .readline( ) was the one listed in the API


    It's in the API documentation:
    http://java.sun.com/j2se/1.4.2/docs/api/java/io/DataInputStream.html#readLine()
    <http://java.sun.com/j2se/1.4.2/docs/api/java/io/DataInputStream.html#readLine%28%29>

    Wrap the InputStream in a BufferedReader and you'll get rid of the
    deprecation (and gain compatibility with different character sets).

    Klaasjan


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--

A. Helmy

Check out the first and second replies of this post:
http://www.fedorasolved.com/viewtopic.php?t=120
It's for FC4, but the same thing works for FC5.
-Dan