Get objects created/modified recently

SELECT OBJECT_NAME,
TO_CHAR(CREATED,       'DD-Mon-RR HH24:MI') CREATE_TIME,
TO_CHAR(LAST_DDL_TIME, 'DD-Mon-RR HH24:MI') MOD_TIME,
STATUS
FROM   USER_OBJECTS
WHERE  SYSDATE - LAST_DDL_TIME < 7