Oracle-sql developer database connection problem

Question

hi all,
i tried creating a new connection in SQL developer but unable to create.
i tried with all the combinations such as
connection name:hr_orcl
username:hr
password:hr
connection tyrpe:basic,Role:default
hostname:localhost/ip address of my system
port:1521
SID:xe/orcl
But still it is hsowing as " network adapter could not establish the connection".
So could anybody please help me in this regard as to how to resolve this issue as I have searched several sites but could not find a solution for this.Waiting for your reply at the earliest
Thanks,
Rajesh P.
9949254433

Answer 1

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\rajesh>lsnrctl status
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 28-DEC-2012 08:21
:08
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Produ
ction
Start Date 28-DEC-2012 08:20:36
Uptime 0 days 0 hr. 0 min. 31 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Default Service XE
Listener Parameter File C:\oraclexe\app\oracle\product\10.2.0\server\network\a
dmin\listener.ora
Listener Log File C:\oraclexe\app\oracle\product\10.2.0\server\network\l
og\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC_FOR_XEipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rajesh-PC)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
C:\Users\rajesh>