I have passed an object in java action as a input parameter after getting filled by a form. my question is how to get the values of atributes and store them in variable in java action in eclipse usinf that object.?
These a translated into proxy objects. You can find the definitions of these in javasource/<modulename>/proxies/<mendixentity>.java
In these proxy classes you have get and set methods for each attribute. There is also a commit method for when you want to commit changes back to the database.