Accessing ABAP Tables through JAVA application

Hi Everybody

I am working on a java aplication where i need to pick certain fields from XSL file and need to post the values from these fields into specific ABAP Tables

For this i need to interface my java application with ABAP R\3 systems and access the ABAP tables in order to insert the values into specific ABAP tables .Can anyone explain the complete process of how Java application can Interact with the ABAP Tables??

Plz help me out...