How can i check to see if an object is already in the array list?

Question

while (res.next()) {
                Schedule schedule = new Schedule();
                customerName = res.getString("CUSTOMERNAME");
                schedule.setCustomerName(customerName);
                magName = res.getString("MAGNAME");
                schedule.setMagName(magName);
                System.out.println("NAME: " + customerName);
                System.out.println("MAGNAME: " + magName);
                if(!scheduleListH.contains(schedule))  //this won't work
                    scheduleListH.add(schedule);
            }schedule object has 2 fields, customerName and MagName;
Basically i want to say, IF the scheudleList (which is an array list) contains an object schedule that has the same customerName and MagName as any of the objects in the array list, don't readd the object.
ANy help would be great!

Answer 1

Thanks!
Oops I forogt I could use the .contains, i also tried that but still no luck.
There is no compiler error but here is an example of the output:
Populating scheudle list for HOLIDAY selection data structure: 
NAME: Cory
MAGNAME: Merlin
NAME: Brandon
MAGNAME: Gondorf
NAME: Chris
MAGNAME: Houdini
NAME: Lokie
MAGNAME: Blaine
Sample SCHEDUEL H [Cory          Merlin, Brandon          Gondorf, Chris          Houdini, Lokie          Blaine]As you can see, There are 4 objects in the array list:
Cory Merlin
Brandon Gondorf
Chris Houdini
Lokie BLaine
Now this function is called everytime the user choses a new item in a combo box.
So if they go back to the previous selection, Holiday's, it shouldn't read add all the orginal things.
But if I go up and select the same item in the combo box it changes whats in the array list to the following:
Populating scheudle list for HOLIDAY selection data structure: 
NAME: Cory
MAGNAME: Merlin
NAME: Brandon
MAGNAME: Gondorf
NAME: Chris
MAGNAME: Houdini
NAME: Lokie
MAGNAME: Blaine
Sample SCHEDUEL H [Cory          Merlin, Brandon          Gondorf, Chris          Houdini, Lokie          Blaine, Cory          Merlin, Brandon          Gondorf, Chris          Houdini, Lokie          Blaine]Here's my whole function if your interested and where I call it:
    void populateSchedule(String holiday) {
        Statement sta = null;
        Connection connection6 = null;
        try {
            connection6 = DriverManager.getConnection(URL, USERNAME, PASSWORD);
            sta = connection6.createStatement();
            //getting the list of magicians from the selected holiday to see if any are free
            ResultSet res = sta.executeQuery(
                    "SELECT CUSTOMERNAME, MAGNAME FROM SCHEDULE WHERE HOLIDAYNAME = '" + holiday + "'");
            String customerName = " ";
            String magName = " ";
            System.out.println("Populating scheudle list for HOLIDAY selection data structure:  ");
            //this is where I add the waiting list objects to the array that will later be used
            //to print out and shown to the user when they select the waiting list status
            while (res.next()) {
                Schedule schedule = new Schedule();
                customerName = res.getString("CUSTOMERNAME");
                schedule.setCustomerName(customerName);
                magName = res.getString("MAGNAME");
                schedule.setMagName(magName);
                System.out.println("NAME: " + customerName);
                System.out.println("MAGNAME: " + magName);
               if(!scheduleListH.contains(schedule))
                   scheduleListH.add(schedule);
            System.out.println("Sample SCHEDUEL H " +   scheduleListH);
        } catch (SQLException ex) {
            System.out.println(ex);
            ex.printStackTrace();
        } finally {
            try {
                sta.close();
                connection6.close();
            } catch (SQLException ex) {
                Logger.getLogger(Database.class.getName()).log(Level.SEVERE, null, ex);
//this is where i call in the GUI
    private void specStatusComboBoxActionPerformed(java.awt.event.ActionEvent evt) {                                                  
        // TODO add your handling code here:
        String selectedItem = (String)specStatusComboBox.getSelectedItem();
        String groupSelectedItem = (String) groupStatusComboBox.getSelectedItem();
        if(groupSelectedItem.equals("Holidays"))
            //get customer name and magician name from the Scheduel table
            //use selectedItem (it will be a holiday name)
            //magicDB.clearScheduleHList();
            magicDB.populateSchedule(selectedItem);
            ArrayList<Schedule> tempScheduleList = magicDB.getScheduleHListCopy();
            outputTextArea.setText(" ");
            outputTextArea.setText("CUSTOMER NAME" +"\t\t" + "MAGICIAN NAME" + "\n");
            for(int i = 0; i < tempScheduleList.size(); i++)
                outputTextArea.append(tempScheduleList.get(i).toString() + "\n");
    }   I'll reward the duke stars anyways because you have been a great help either way!