FOR loop in ABAP Code ?

Question

Hi,
I am working on a ABAP requirement, where I need to use a dynamic variable attached to a compilable code.
For ex:
In Jave we use
for( i=0; i >n; i++){
int i=0;
stmti+stmti = result;
Here  i  is an dynamic variable and it will be keep on changing ATTACHED TO stmti as stmt1.stmt2....etc. whenever there is a
change in i.
In ABAP, I have below code to attach:- Here I need to change from 1 to 100 like below. currently I see it as re-work, if i put the code each time changing manually. so I want make it in a loop and so dynamic and hence less code. How to achieve this. Please
help. Any ABAP string functions to be used?
if i=1
DATA ls_nd_tmp1 TYPE wd_this->Element_nd_tmp1.
   DATA it_nd1 TYPE TABLE OF wd_this->Element_nd_tmp1.
   DATA wa_nd1 TYPE wd_this->Element_nd_tmp1.
if i=2
DATA ls_nd_tmp2 TYPE wd_this->Element_nd_tmp2.
   DATA it_nd2 TYPE TABLE OF wd_this->Element_nd_tmp2.
   DATA wa_nd2 TYPE wd_this->Element_nd_tmp2.
Thanks
Praveen
Edited by: Praveen kumar Kadi on Sep 23, 2010 9:59 AM

Answer 1

>
Praveen kumar Kadi wrote:
>
> if i=1
> DATA ls_nd_tmp1 TYPE wd_this->Element_nd_tmp1.
>    DATA it_nd1 TYPE TABLE OF wd_this->Element_nd_tmp1.
>    DATA wa_nd1 TYPE wd_this->Element_nd_tmp1.
>
> if i=2
> DATA ls_nd_tmp2 TYPE wd_this->Element_nd_tmp2.
>    DATA it_nd2 TYPE TABLE OF wd_this->Element_nd_tmp2.
>    DATA wa_nd2 TYPE wd_this->Element_nd_tmp2.
>
What are you going to do with this data once you've defined it?  I'd define an internal table with three fields -
TYPES: BEGIN OF my_elements_ty,
        r_element1 TYPE REF TO data,
        r_element2 TYPE REF TO data,
        r_element3 TYPE REF TO data,
      END OF my_elements_ty.
DATA: lt_elements TYPE STANDARD TABLE OF my_elements_ty,
      ls_element  TYPE my_elements_ty.
Then, for each iteration, build the name of the element type in strings and use something like:
CREATE DATA ls_element-r_element1 TYPE (the_type_in_the_string1).   
CREATE DATA ls_element-r_element1 TYPE (the_type_in_the_string2).   
CREATE DATA ls_element-r_element1 TYPE (the_type_in_the_string3).
INSERT ls_element INTO TABLE lt_elements.
But this really is advanced ABAP, and not suitable for someone who is clearly a beginner. ( Also note that these forums are not supposed to be a substitute for training - or reading an ABAP tutorial ).
matt