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Thread: display item for item selected in combobox

  1. #1
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    Default display item for item selected in combobox

    Hi i have table sql with 2 columns i diplay in jCombobox a data from the first column and when i selectItem i want display a message that contains item corresponded if the second columns
    this is the code he always gives me 0
    conn = DriverManager.getConnection("jdbc:mysql://localhost/etat", "root", "123456"); 
                String sql = "SELECT * FROM pop;";         
                PreparedStatement prest = conn.prepareStatement(sql);
                ResultSet res=prest.executeQuery();
        while(res.next()){ 
                 jComboBox3.addItem(res.getString("name")) ; 
                 jComboBox3.setActionCommand(res.getString("etat_syn"));           
        }
     if(jComboBox3.getSelectedItem()!=null){
            System.out.println("Command: " + jComboBox3.getActionCommand());


  2. #2
    Senior Member PhHein's Avatar
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    Default Re: display item for item selected in combobox

    Have you catually read the APIdoc for JComboBox.setActionCommand? This cannot work.
    How to Use Combo Boxes (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)

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