Inserting data into SAP tables via java jco code

Hi Team,

          I need some help on inserting data into SAP tables via jco. I have analysed the options and got to know that it is possible via BAPI functions. Can you please provide some sample code on how to insert data into SAP tables via JCO.

     Do we have to create individual BAPI functions to update each table?? please advice

Thanks in Advance