installing JDK 1.5.0_0 question


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installing JDK 1.5.0_0 question

Postby Fuddzy » Tue, 15 Feb 2005 02:54:52 GMT


I am learning Java as a hobby and currently using  j2sdk-1_4_2_05.
I note that Sun has made available a more recent version , namely JDK 

Here is my question.
Must I un-install  j2sdk-1_4_2_05 and then install JDK 1.5.0_0
	or just install JDK 1.5.0_01 ?


Re: installing JDK 1.5.0_0 question

Postby Knute Johnson » Tue, 15 Feb 2005 03:56:16 GMT


You need to uninstall the old JDK and JRE.  Then you can install the new 
JDK (and JRE bundle).  I assume you probably are using a Winblows 
machine so you can also go into C:\Program Files\Java and delete the 
remnants of the old JDK and JRE directories.  If you are going to use 
any extras like JMF, JavaMail or JavaComm, you will have to reinstall 
those too.


Knute Johnson
email s/nospam/knute/

Re: installing JDK 1.5.0_0 question

Postby Ryan Stewart » Tue, 15 Feb 2005 14:22:34 GMT

That is completely wrong, but probably not a bad idea for someone just learning 
the language. It's perfectly fine to run two (or more) versions of Java side by 
side. Prior to Java 1.5, the SDK was not installed to Program Files by default, 
and any extra libraries will generally be as useable with 1.5 as they were with 

Similar Threads:

1.installing JDK 1.5.0_0 Solved

Knute Johnson wrote:

> You need to uninstall the old JDK and JRE.  Then you can install the new 
> JDK (and JRE bundle). 

Thank You for the quick response......... I will do as you suggest.

Mucho Gracias


2.question about installing the latest sun jdk

I'm using Gnome on my feisty fawn server and am trying to install the 
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Invoking konsole, I have su'd to root and am sitting in the directory 
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Here is the command I use to start the install


It comes back moments later with the following error:

The installer is unable to run in graphical mode. Try running the 
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the -console option reports an error

The wizard cannot continue because of the following error: Invalid 
command line option: console is not supported (1001) (403)
WARNING: could not delete temporary file /tmp/ismp001/4909466
WARNING: could not delete temporary file /tmp/ismp001/6716087
WARNING: could not delete temporary file /tmp/ismp001/2549433

and the -silent option does nothing

At first I thought it was because I was using KDE, so I installed Gnome 
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I am able to run this fine on my feisty desktop version, and earlier 
installs of the server version had no issues.

What am I doing wrong and how can I get this fixed?  I have several 
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I am cross-posting this to both the Ubuntu group and the Java group in 
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Note:  The results are the same if I use just a terminal.

3.Compiler Bug?? (javac 1.6.0_0-internal)

Dear all,

I've recently started programming in Java and I'm having a problem
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============================== START ================================
import java.util.Iterator;

public final class Error<T>
public final class Error<T>
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        public ErrorIterator( )   { }
        public boolean hasNext( ) { return true; }
        public T next( )          { return t; }
        public void remove( )     { }
=============================== END =================================

When I try to compile this example I get the following error:

============================== START ================================ incompatible types
found   : T
required: T
        public T next( )          { return t; }
=============================== END =================================

I'm using javac 1.6.0_0-internal.

Is this a known error? If so, is there a bug-fix I could download

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I want to install the latest Netbeans/jdk1.4.2 combination from Sun but
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7. so finally I have successfully downloaded and installed netbeans and the jdk from sun now

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