oracle10g - Connection refused error in oracle 10g -

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i beginner in oracle 10g. have tried connect oracle 10g database. here code:

package com.lara;  import java.sql.*; class x1{ public static void main(string args[])throws exception{ class.forname("oracle.jdbc.driver.oracledriver"); connection con=drivermanager.getconnection("jdbc:oracle:thin:@localhost:1521:xe","scott","tiger1"); statement stmt=con.createstatement(); string sql="create table  emp(sno int,name varchar(90),age int)"; stmt.execute(sql); } }

but getting error:

exception in thread "main" java.sql.sqlexception: io exception: connection refused(description=(tmp=)(vsnnum=169870080)(err=12505)(error_stack=(error=(code=12505)(emfi=4))))     @ oracle.jdbc.dbaccess.dberror.throwsqlexception(dberror.java:134)     @ oracle.jdbc.dbaccess.dberror.throwsqlexception(dberror.java:179)     @ oracle.jdbc.dbaccess.dberror.throwsqlexception(dberror.java:333)     @ oracle.jdbc.driver.oracleconnection.<init>(oracleconnection.java:404)     @ oracle.jdbc.driver.oracledriver.getconnectioninstance(oracledriver.java:468)     @ oracle.jdbc.driver.oracledriver.connect(oracledriver.java:314)     @ java.sql.drivermanager.getconnection(unknown source)     @ java.sql.drivermanager.getconnection(unknown source)     @ com.lara.x1.main(x1.java:7)

possibly firewall issue. turn off firewall or open port 1521.


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