Calling another object's method

Question

I have made a GUI in swing.
I have a class object with all my database methods in it.
I am having problems calling a particular method in my Database Object and displaying the ResultSet of that method in my Swing GUI.
here is the code from the GUI calling the object:
public void displayUAI() {
     String course2, Min2, Rev2; //the object types to be sent
     int num1, num2;
     Min2 = newUAI2.getText();
     Rev2 = newRevUAI2.getText();
     num1 = Integer.parseInt(Min2);
     num2 = Integer.parseInt(Rev2);
     course2 = (String)Course.getSelectedItem();
     DataBaseTools.displayUAI(num1, num2, course2); //the database object method that i'm trying to call
//The following 2 lines are what i would like to happen after i invoke the method in the database object; i would like to update these two textfields with the database results found
     newUAI2.setText(Min2);
     newRevUAI2.setText(Rev2);
}//end displayUAI()*/
This is the code for the method in the Database-class object:
     public static void displayUAI(int min, int rev, String Course){
          try {
          Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
          database+= filename.trim() + IDnState; // add on to the end
          Connection con = DriverManager.getConnection( database ,"","");
          String query = "SELECT * FROM Course where Name= ('" + Course +"')";
          Statement stmt = con.createStatement();
                         // Create a result set containing all data from my_table
                              ResultSet rs = stmt.executeQuery(query);
                              //System.out.println("Athlete DB being updated...:");
                              while (rs.next()) {
                                   String mina, reva;
                                   mina = rs.getString("Min");
                                   reva = rs.getString("Rev");
                                   min = Integer.parseInt(mina);
                                   rev = Integer.parseInt(reva);
                         stmt.close();
                         con.close();
                    } catch(Exception ex) {
                         System.err.println("SQLException: " + ex.getMessage());
}//end displayUAI()
Basically i just want the method to be invoked and the results shown in my SWING GUI.
Your help would be greatly appreciated.
Cheers.

Answer 1

Hi,
just pass a reference to each of your two textfields in your DB method call... like:
   //In the calling class
   DataBaseTools.displayUAI(num1, num2, course2, newUAI2, newRevUAI2);
   //In the DatabaseTools class
   public static void displayUAI(int min, int rev, String Course, JTextField txtmin, JTextField txtrev){
      mina = rs.getString("Min");
      reva = rs.getString("Rev");
      min = Integer.parseInt(mina);
      rev = Integer.parseInt(reva);
      txtmin.setText(Min2);
      txtrev.setText(Rev2);
   }That should do the trick,
Regards.