You can only create the implementations for unimplemented interface
methods.
Note In SAP NetWeaver 7.3 EHP1 SP11 and higher, the same behavior as in SAP NetWeaver 7.4 SP2
and subsequent releases is provided.
Procedure
In the source code editor of the class, enter the statement with the name of the
interface in the public section.
Position the cursor on the interface declaration that has no implementation part yet.
Figure 1:
Creating the implementation part of an interface in a class
In the context menu, choose Quick Fix or use the shortcut (Ctrl 1).
In the Quick Fix dialog box, select Add unimplemented interface methods.
Results
ABAP development tools for SAP NetWeaver inserts the implementations of the missing
interface methods in the existing implementation part of your class.
Figure 2:
Adding empty method stubs of an interface into the implementation part of a class