i have installed oracle 10g (both ee and xe) editions... while am installing i found port num as 1521 for ee, 1522 for xe

i have installed oracle 10g (both ee and xe) editions... while am installing i found port num as 1521 for ee, 1522 for xe.... and my program is......
import java.sql.*;
import java.io.*;
public class DBConnect{
public static void main(String ar[])throws SQLException{
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
System.out.println("driver is registered");
Connection con=
DriverManager.getConnection("jdbc:oracle:thin:@localhost:1522:xe","lms","xyz");
System.out.println(con);
System.out.println("connection is established");
Statement stmt=con.createStatement();
ResultSet rs=stmt.executeQuery("insert into emp values(3,'c')");
while(rs.next()){
int eno=rs.getInt("eno");
System.out.println(eno);
String name=rs.getString("name");
System.out.println(name); 
}
}
}...... while i run this prog.... i got error like
driver is registered
oracle.jdbc.driver.T4CConnection@929206
connection is established
Exception in thread "main" java.sql.SQLException: ORA-00942: table or view does
not exist

        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java
:112)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
        at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:743)
        at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:207)
        at oracle.jdbc.driver.T4CStatement.executeForRows(T4CStatement.java:946)

        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStateme
nt.java:1169)
        at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:
1273)
        at DBConnect.main(DBConnect.java:12)

E:\jdbcex> 
and in sql i have create user lms and, table emp(eno, name).
please tell me wts the resolution for this problem....