Posted: Sat Sep 15, 2007 8:10 pm Post subject: Constructor - optional and default parameters
Each class has only one instance constructor, which cannot be overloaded. But, using optional and default parameters allows seeming overloading.
Code:
report z.
class w_test definition.
public section.
methods:
constructor
importing value(p_name) type string optional
value(p_date) like sy-datum default sy-datum,
show.
private section.
data:
name type string,
date like sy-datum.
endclass.
class w_test implementation.
method constructor.
name = p_name.
date = p_date.
endmethod.
method show.
write: / date, name.
endmethod.
endclass.
data: w1 type ref to w_test,
w2 like w1, w3 like w1.
END-OF-SELECTION.
* use different variants of creating the object instance:
create object w3.
create object w2 exporting p_name = '2nd'.
create object w1 exporting p_date = '20011115' p_name = '1st'.
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