Exception in thread "main" java.sql.SQLException: Io exception: Connection

Question

Hello
I created a java program to connect to a oracle database 10g
I got the following error:
Exception in thread "main" java.sql.SQLException: Io exception: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=153093632)(ERR=12514)(ERROR_STACK=(ERROR=(CODE=12514)(EMFI=4))))
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:334)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:418)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:521)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:325)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
at dbAccess.main(dbAccess.java:10)
here the code
import java.sql.*;
class dbAccess {
public static void main (String args []) throws SQLException
     if (args.length<=0) {System.out.println("You need to provide the user and password");System.exit(0);}
DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver());
Connection conn = DriverManager.getConnection
("jdbc:oracle:thin:@dathvader2003:1521:orcl", args[0], args[1]);
// @machineName:port:SID, userid, password
Statement stmt = conn.createStatement();
ResultSet rset = stmt.executeQuery("select BANNER from SYS.V_$VERSION");
while (rset.next())
System.out.println (rset.getString(1)); // Print col 1
stmt.close();
Any helps?
Many thanks

Answer 1

This is the exactly code
import java.io.PrintStream;
import java.sql.*;
import oracle.jdbc.driver.OracleDriver;
class dbAccess
dbAccess()
public static void main(String args[])
throws SQLException
if(args.length <= 0)
System.out.println("You need to provide the user and password");
System.exit(0);
DriverManager.registerDriver(new OracleDriver());
Connection connection = DriverManager.getConnection("jdbc:oracle:thin:@dathvader2003:1521:orcl", args[0], args[1]);
Statement statement = connection.createStatement();
for(ResultSet resultset = statement.executeQuery("select BANNER from SYS.V_$VERSION"); resultset.next(); System.out.println(resultset.getString(1)));
statement.close();
}