Error while connecting to Oracle in Linux

I wrote a JAVA program to test the connection with Oracle. It worked in NT environment, but it did not in Linux Environment. I got the error message: "IO exception: The Network Adapter could not establish the connection."
Here is JAVA code:
import java.sql.*;
class Employee1
public static void main (String args [])
throws SQLException
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn =
DriverManager.getConnection ("jdbc:oracle:thin:@203.149.143.1:1521:ora1",
"dxhub", "manager");
Statement stmt = conn.createStatement ();
ResultSet rset = stmt.executeQuery ("select user_id from user_info");
while (rset.next ())
System.out.println (rset.getString ("user_id"));
catch(Exception e)
System.out.println(e.getMessage());
I think there is nothing wrong with JAVA code. There must be something wrong in the Linux environment. I appreciate your help if someone can give me a little advice.
Tony
null

I wrote a JAVA program to test the connection with
Oracle. It worked in NT environment, but it did not
in Linux Environment. I got the error message: "IO
exception: The Network Adapter could not establish
the connection."
Here is JAVA code:
import java.sql.*;
class Employee1
public static void main (String args [])
throws SQLException
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn =
DriverManager.getConnection
n ("jdbc:oracle:thin:@203.149.143.1:1521:ora1",
"dxhub", "manager");
Statement stmt = conn.createStatement ();
ResultSet rset = stmt.executeQuery ("select user_id
d from user_info");
while (rset.next ())
System.out.println (rset.getString ("user_id"));
catch(Exception e)
System.out.println(e.getMessage());
I think there is nothing wrong with JAVA code. There
must be something wrong in the Linux environment. I
appreciate your help if someone can give me a little
advice.
Tony
nullDid you ever find an answer to this, I'm having the same problem. My application works under windows, but doesn't under linux.
Lonnie

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    $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
    BIG THANK TO EVERYONE !!!!!!!!!!!!!!!!
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