Oracle IP change Issue

Just update the IP inside this location:
go to this location:{$app_DIR}\admin\product\11.2.0\dbhome_1\NETWORK\ADMIN
e.g.
E:\app\admin\product\11.2.0\dbhome_1\NETWORK\ADMIN

open cmd in adminstrator mode using shortcut key:
WINDOW+X

Go to the above dir location and
 type = notepad sqlnet.ora and edit localhost or current IP with updated IP
then
type = notepad tnsnames.ora and edit localhost or current IP with updated IP