Creating pluggable database using dbca
Here is one of the options:

Connect to the CDB and query cdb_data_files and cdb_pdbs data dictionary views

select file_name
  from cdb_data_files cdf
       join cdb_pdbs p
          on (cdf.con_id = p.con_id)
where p.pdb_name = '&lt;container_name&gt;'


Note: cdb_pdbs data dictionary view doesn't show root container - only pdbs associated with the current cdb. If there is a need to see all pdbs including cdb query v$containersview.