Abap memory question

Question

hi,guys,i did a example to test the difference between sap memory and abap memory,the result that i did program zmemory1 is : 1111  2223,
but the question is when i did program zmemory2 alone,the result is the same,why i can get test2 with
import statement in different session,below is my code,
thxs in advance!
REPORT  zmemory1.
DATA : test1(10) TYPE c,
       test2(10) TYPE c.
test1 = '1111'.
test2 = '2223'.
FREE MEMORY ID 'TEST2'.
SET PARAMETER ID 'TEST1' FIELD test1.
EXPORT test2 TO MEMORY ID 'TEST2'.
CALL TRANSACTION 'ZMEMORY2'.
REPORT  zmemory2.
DATA: test1(10) TYPE c,
      test2(10) TYPE c.
GET PARAMETER ID 'TEST1' FIELD test1 .
IMPORT test2 FROM MEMORY ID 'TEST2'.
WRITE:/ test1,test2.

Answer 1

Hello Kevin,
You can retest the whole thing again.
Execute your program ZMEMORY_1 in which you have chosen EXPORT TO MEMORY-ID -> This will store the value you want to, to a memory space created by name as specified by you.
Execute your Program ZMEMORY_2 in which you have chosen IMPORT FROM MEMORY-ID -> This will get the value you have stored in the memory ID.
In the case you execute the program separately you will not be able to get the value you have stored in memory.
In case you have executed/submitted the program ZMEMORY_2 in program ZMEMORY_1 you will be able to get the values stored in the memory ID.
Please note that Garbage Collector collects/clears the memory as soon as session is ended. May be in some case it would not have been triggred before the execution of the program, I am taking a case on my assumption but generally it does not happens and Garbage Collector does it job well :-).
Hope this helps.
Thanks,
Jayant