DATA: lv_text TYPE string.
 lv_text = 'Hello, World!'.
 WRITE: / lv_text.

DATA: lv_num1 TYPE i VALUE 10,
 lv_num2 TYPE i VALUE 20,
 lv_sum TYPE i.
 lv_sum = lv_num1 + lv_num2.
 WRITE: / lv_sum.

DATA: lt_numbers TYPE TABLE OF i,
 lv_number TYPE i.
 DO 5 TIMES.
 lv_number = sy-index.
 APPEND lv_number TO lt_numbers.
 ENDDO.
 LOOP AT lt_numbers INTO lv_number.
 WRITE: / lv_number.
 ENDLOOP.

CLASS lcl_worker DEFINITION.
 PUBLIC SECTION.
 METHODS: do_work.
 ENDCLASS.
 CLASS lcl_worker IMPLEMENTATION.
 METHOD do_work.
 WRITE: / 'Work done'.
 ENDMETHOD.
 ENDCLASS.
 DATA: lo_worker TYPE REF TO lcl_worker.
 CREATE OBJECT lo_worker.
 CALL METHOD lo_worker->do_work.

CLASS lcl_counter DEFINITION.
 PUBLIC SECTION.
 METHODS: increment,
 get_count RETURNING VALUE(rv_count) TYPE i.
 PRIVATE SECTION.
 DATA: lv_count TYPE i.
 ENDCLASS.
 CLASS lcl_counter IMPLEMENTATION.
 METHOD increment.
 ADD 1 TO lv_count.
 ENDMETHOD.
 METHOD get_count.
 rv_count = lv_count.
 ENDMETHOD.
 ENDCLASS.
 DATA: lo_counter TYPE REF TO lcl_counter.
 CREATE OBJECT lo_counter.
 DO 5 TIMES.
 CALL METHOD lo_counter->increment.
 ENDDO.
 WRITE: / lo_counter->get_count().

DATA: lt_numbers TYPE SORTED TABLE OF i WITH UNIQUE KEY table_line,
 lv_number TYPE i.
 DO 10 TIMES.
 lv_number = sy-index.
 INSERT lv_number INTO TABLE lt_numbers.
 IF sy-subrc <> 0.
 DELETE TABLE lt_numbers.
 ENDIF.
 ENDDO.
 LOOP AT lt_numbers INTO lv_number.
 WRITE: / lv_number.
 ENDLOOP.