questo è il listato del programma:

import javax.swing.*;
import javax.swing.JOptionPane;

public class Welcome1 {
public static void main( String args[] )
{
JOptionPane.showMessageDialog(null, "Ciao Luk!" );
System.exit(0);
}
}
cmq nel browser non mi visualizza gli applets java..quindi dato che l'ho già scaricato il jre mi dite come installarlo? la directory si trova in /usr/local/jre1.2.2


ecco i messaggi di errore:

[LeRoi@localhost LeRoi]$ cd Desktop
[LeRoi@localhost Desktop]$ javac Welcome1.java
[LeRoi@localhost Desktop]$ java Welcome1
returned
end
Exception in thread "main" java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit
at 0x4028115f: java.lang.Throwable.Throwable(java.lang.String) (/usr/lib/libgcj.so.3)
at 0x4027408e: java.lang.Error.Error(java.lang.String) (/usr/lib/libgcj.so.3)
at 0x40342d26: java.awt.AWTError.AWTError(java.lang.String) (/usr/lib/libgcj.so.3)
at 0x4035acad: java.awt.Toolkit.getDefaultToolkit() (/usr/lib/libgcj.so.3)
at 0x4035b472: java.awt.Window.getToolkit() (/usr/lib/libgcj.so.3)
at 0x4034bb48: java.awt.Container.addImpl(java.awt.Component, java.lang.Object, int) (/usr/lib/libgcj.so.3)
at 0x4034b9ca: java.awt.Container.add(java.awt.Component, java.lang.Object) (/usr/lib/libgcj.so.3)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocat ion) (/usr/lib/libgcj.so.3)
at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
at 0x4039d1bc: ?? (??:0)
[LeRoi@localhost Desktop]$