Entering data from JTextfield into Database--- Techniques

hello friends,
I am developing an application where i want to insert data from my Jtextfield to data base.
I know all the procedure but i am confused.
I have 11 fields in my frame, out of which 3 are compulsory. rest are optional.
i am validating those 3 compulsory fields.
so i have to generate run time insert query, depending on the fields Populated.
Also i have my connection to db in other class. that not a problem as i can call a method. But how to pass so many arguments. when no. of arguments also change runtime.

Thanks Aniruddha,
But i didn't understand what u said.
I think I will do as following
1. check the populated field.
2. if yes then insert them into a hashmap .
key = field name, value = field value
3. send the hash map as the argument to function connecting my db.
4. retrieve the fields. and dependingly make a prepared statement for insertion.
5. as some of my fields are integer, convert them to int . then set them
6. then execute the query.
if u have any other suggestions please tell....

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