some doubts - [newbie]

["Gilberto Garcia Jr." <garcia@ensino.net>]

Hey guys...

1) How can I make some commands available to all user. (i.e.) shutdown (only
root can execute this, what can I make to other user do this too?)

2) which is the easiest way to upgrade jdk 1.3.1 to jdk 1.4.1?

3) how can I get a new ssl certificate? I have apache-ssl installed and now
the certificate has expired.

4) why a simple hello word program in java, that works fine on windows,
return this error on linux (java.lang.NoDefFoundError)

thanks to all of you
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