You need to use an ASN compiler for that. You can try this one:
Use Eclipse to generate the java Classes corresponding to a ASN.1description
Question
I installed this ASN.1 editor plugin to in my Eclipse and i wrote this code
Editor http://asneditor.sourceforge.net
-- Created: Mon May 06 19:38:15 CEST 2013 ASN-Module DEFINITIONS AUTOMATIC TAGS ::= BEGIN
Client ::= SEQUENCE { lientNumber INTEGER}
Server ::= SEQUENCE { lientNumber INTEGER, serverString String } END
But I don't found how to use this Editor to generate the java Classes corresponding to my ASN.1 description
Solution
OTHER TIPS
A glance at the website suggests this plugin does not have the functionality you desire. It appears to be designed to make it easier to write ASN.1 grammars, but not to generate Java code for them.
I would suggest you Google for "asn1 java compiler" and try some of the current popular options.