How to call OBJECTS

Hi all,
i am using SAP 4.7 version. I am unable to call the following objects .
CREATE OBJECT LOGO_CONTAINER
CREATE OBJECT LOGO.
CALL METHOD LOGO->LOAD_PICTURE_FROM_URL
How to call these objects ?
Thanks in advance
krupali

Hi,
This is the sample program helpful to u.
CLASS counter DEFINITION.
PUBLIC SECTION.
    METHODS: set IMPORTING value(set_value) TYPE i,
             increment,
             get EXPORTING value(get_value) TYPE i.
PRIVATE SECTION.
    DATA count TYPE i.
ENDCLASS.
CLASS counter IMPLEMENTATION.
METHOD set.
    count = set_value.
ENDMETHOD.
METHOD increment.
    ADD 1 TO count.
ENDMETHOD.
METHOD get.
    get_value = count.
ENDMETHOD.
ENDCLASS.
DATA: cnt_1 TYPE REF TO counter,
      cnt_2 TYPE REF TO counter,
      cnt_3 TYPE REF TO counter,
      cnt_tab TYPE TABLE OF REF TO counter.
DATA number TYPE i.
START-OF-SELECTION.
CREATE OBJECT: cnt_1,
                 cnt_2.
MOVE cnt_2 TO cnt_3.
CLEAR cnt_2.
cnt_3 = cnt_1.
CLEAR cnt_3.
APPEND cnt_1 TO cnt_tab.
CREATE OBJECT: cnt_2,
                 cnt_3.
APPEND: cnt_2 TO cnt_tab,
          cnt_3 TO cnt_tab.
CALL METHOD cnt_1->set EXPORTING set_value = 1.
CALL METHOD cnt_2->set EXPORTING set_value = 10.
CALL METHOD cnt_3->set EXPORTING set_value = 100.
DO 3 TIMES.
    CALL METHOD: cnt_1->increment,
                 cnt_2->increment,
                 cnt_3->increment.
ENDDO.
LOOP AT cnt_tab INTO cnt_1.
    CALL METHOD cnt_1->get IMPORTING get_value = number.
    WRITE / number.
ENDLOOP.
Regards,
Narasimha

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