Multiple Inheritance using Interface in ABAP OOP

REPORT  zcl_oops_test.

*----------------------------------------------------------------------*
*       INTERFACE intf1
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
INTERFACE intf1.

  METHODS: name.

ENDINTERFACE.                    "intf1

*----------------------------------------------------------------------*
*       INTERFACE intf2
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
INTERFACE intf2.

  METHODS: details.

ENDINTERFACE.                    "intf2

*----------------------------------------------------------------------*
*       CLASS cl_test1 DEFINITION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS cl_test1 DEFINITION.

  PUBLIC SECTION.
    INTERFACES: intf1,
                intf2.
ENDCLASS.                    "cl_test1 DEFINITION

*----------------------------------------------------------------------*
*       CLASS cl_test1 IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS cl_test1 IMPLEMENTATION.

  METHOD intf1~name.
    WRITE: / 'Sandhya'.
  ENDMETHOD.                    "intf1~name

  METHOD intf2~details.
    WRITE: / 'Location - CG, Bangalore'.
  ENDMETHOD.                                              "intf2~details

ENDCLASS.                    "cl_test1 IMPLEMENTATION

*----------------------------------------------------------------------*
*       CLASS cl_test2 DEFINITION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS cl_test2 DEFINITION.

  PUBLIC SECTION.
    INTERFACES: intf1,
                intf2.
ENDCLASS.                    "cl_test2 DEFINITION

*----------------------------------------------------------------------*
*       CLASS cl_test2 IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS cl_test2 IMPLEMENTATION.

  METHOD intf1~name.
    WRITE: / 'Country - india'.
  ENDMETHOD.                    "intf1~name

  METHOD intf2~details.
    WRITE: / 'Language - English'.
  ENDMETHOD.                    "intf2~details

ENDCLASS.                    "cl_test2 IMPLEMENTATION

*----------------------------------------------------------------------*
*       CLASS cl_test3 DEFINITION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS cl_test3 DEFINITION.

  PUBLIC SECTION.
    CLASS-METHODS: select_name IMPORTING n1 TYPE REF TO intf1,
                   select_details  IMPORTING d1 TYPE REF TO intf2.

ENDCLASS.                    "cl_test3 DEFINITION

*----------------------------------------------------------------------*
*       CLASS cl_test3 IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS cl_test3 IMPLEMENTATION.

  METHOD select_name.
    n1->name( ).
  ENDMETHOD.                    "select_name

  METHOD select_details.
    d1->details( ).
  ENDMETHOD.                    "select_details

ENDCLASS.                    "cl_test3 IMPLEMENTATION


START-OF-SELECTION.

  DATA: obj1 TYPE REF TO cl_test1.
  CREATE OBJECT obj1.
  cl_test3=>select_name( obj1 ).
  cl_test3=>select_details( obj1 ).

  DATA: obj2 TYPE REF TO cl_test2.
  CREATE OBJECT obj2.
  cl_test3=>select_name( obj2 ).
  cl_test3=>select_details( obj2 ).

Output