Why many zero are returned when a field is empty

Hi,
I am using sapjco 2.1.8 in my Java code to call a BAPI function (rsz_x_component_get).
When executing this bapi function in SAP GUI, I can see one field is empty, and it's defined as as 70 characters. However, in Java code what I received is "000000000", while I should receive an empty string, "".
Does anyone know why the empty string is transferred into a string containing many zero?
Thanks,
Ray

Hi Atish,
Thanks for reply.
The field is defined as CHARACTER and its length is 70. In Java code I use super.getTable().getString(20);
Thanks,
Ray

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Why many zero are returned when a field is empty

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