sap abap program for A SAP Pop-out Calculator

* A Pop-out Calculator for the users
*
REPORT ZCALCULATOR.

DATA: X_VALUE(15) TYPE C.

call function 'FITRV_CALCULATOR'
* EXPORTING
*   INPUT_VALUE                =
*   CURRENCY                   =
*   START_COLUMN               = '10'
*   START_ROW                  = '10'
 IMPORTING
   OUTPUT_VALUE               = X_VALUE
 EXCEPTIONS
   INVALID_INPUT              = 1
   CALCULATION_CANCELED       = 2
   OTHERS                     = 3.

IF SY-SUBRC = 0.
  WRITE:/ 'Output Value ', X_VALUE.
ENDIF.

*-- End of Program