Hi,

I'm trying to install Java on Linux Suse 9.1. I've found the following:

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Set the PATH and JAVA_HOME environment variables: (/etc/profile, $HOME/.bashrc or $HOME/.bash_profile).

PATH=$PATH:/usr/java/j2sdk1.4.2_04/bin
JAVA_HOME=/usr/java/j2skd1.4.2_04
export PATH

A reference to the current directory will probably need to be added to your CLASSPATH. Add ":." to the end of your CLASSPATH. Relog into your shell. Now you should be able to access java like this:
# java -version
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1) Do I have to modify all 3 files (/etc/profile, .bashrc and .bash_profile?
2) Can I just start editing the /etc/profile and add what they wrote there?
3) How do I change the CLASSPATH in Linux?
4) I do not have a $HOME/.bash_profile. Do I need to create it manually


I'm looking for a real good and nice Java IDE for Linux.Any suggestions?

Thanks,

WiWa

1) No. /etc/profile executes the files in your home directory. As i remember, it executes the ~/.bash_profile and then ~/.bash_profile executes the ~/.bashrc file like this:

[baris@feyvi baris]$ cat ~/.bash_profile
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi

You need to create the files up to your requirements and also taking this hierarchy into account..
2) Yes you can. Only difference is that: When you edit the /etc/profile file changes apply to all users, but when edit ~/ files changes apply the corresponding user only.

3) As in the script you found..
4) Yes.. also don't forget giving execute permission to file you created.

No idea about Java IDEs.. I don't like Java :-)

Hi,

This is better, put it in your .bash_profile:
JAVA_HOME=/usr/java/j2skd1.4.2_04
PATH=$PATH:$JAVA_HOME/bin

export PATH JAVA_HOME

then do:
$ . .bash_profile
to get the shell to reread the file.

In most cases, you shouldn't need to worry about CLASSPATH. It will find the standard libraries relative to the java executable, and if it's not set at all, it should find the class files in your current directrory no problem.

If you have more than one user, or if you want root to be able to run java as well as your regular user, then you could put it into /etc/profile. Otherwise, if it's just you, put it in .bash_profile.
Only if you're root.
Normally you shouldn't need to create this variable, but if you have to, you'd do it the same way you created JAVA_HOME, by putting it into .bash_profile or /etc/profile (for all users.)
I'd be very surprised if you don't have it. Most if not all Linux distos use bash by default.

File names starting with . are normally hidden. If you open a console and do
$ ls -a
you should see it. Also, you should be able to just edit it:
$ pico .bash_profile
[/QUOTE]
Personally I use NetBeans, because right now I'm doing a lot of Servlet/JSP work, and it's very nice for that - has tools to run and debug servlets, as well as package up everything for deployment. Other people really like Eclipse. Those are both free. If you want to spend money, I've heard that IntelliJ IDEA is excellent.

Good luck!