java ms access connection

Question

I am using BlueJ to carry out some tasks is Java. I can not understand why I can't get any records from my MS Access database. Any help will be appreciated

import java.sql.*;

public class Database
{
    private Statement s;

    /**
     * Constructor for objects of class database
     */
    public database()
    {
        try{
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        }catch(ClassNotFoundException exp){
            System.err.println(exp);
        }    
        try{
            Connection con = DriverManager.getConnection("jdbc:odbc:POS", "", "");
            this.s = con.createStatement();
        }catch(SQLException e){
            e.printStackTrace();
        }       
    }

    public void test(){
       try{
           this.s.executeQuery("SELECT * FROM product");
           ResultSet rset = s.getResultSet();
           System.out.println(rset.getString("title"));
       }catch(SQLException e){
           e.printStackTrace();
       }
    }
}

Here is the output I get when running test() function

java.sql.SQLException: [Microsoft][ODBC Driver Manager] Invalid cursor state at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6956) at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7113) at sun.jdbc.odbc.JdbcOdbc.SQLGetDataString(JdbcOdbc.java:3906) at sun.jdbc.odbc.JdbcOdbcResultSet.getDataString(JdbcOdbcResultSet.java:5697) at sun.jdbc.odbc.JdbcOdbcResultSet.getString(JdbcOdbcResultSet.java:353) at sun.jdbc.odbc.JdbcOdbcResultSet.getString(JdbcOdbcResultSet.java:410) at database.test(database.java:35) at _SHELL9.run(_SHELL9.java:8) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at bluej.runtime.ExecServer$3.run(ExecServer.java:725)

I have the ODBC driver set up and my database name is right. It is not password protected.

Thank you in advance

Answer 1

You need to move the cursor though the ResultSet with next()

ResultSet rset = s.executeQuery("SELECT * FROM product");
if (rset.next()) {
   System.out.println(rset.getString("title"));
}

Answer 2

A ResultSet is a set, so you have to iterate over it:

ResultSet rset = s.executeQuery("SELECT * FROM product");
while(rset.next()){
    System.out.println(rset.getString("title"));
}

P.S. don't forget to close the ResultSet and Statement when you are done with them.