User Exit in Java
I have a standard SAP JAVA program in mySAP CRM. I want to import it NWDS and then customize it, for Example I have a Save button option in standard SAP program and I want to add some functionalities in the code (Like what we do in ABAP using User Exit, for modifying the standard Code.), So similalry do we have any option to modify the code in JAVA for standard SAP programs or is there any other way to achieve this...
Please give me step by step solution for better understanding.