How to Connect jComboBox with Database in java?[With Source Code]

watch the video for the designing part!

write the following code inside the class:

    Connection con = null;
    PreparedStatement pst = null;
    ResultSet rs = null;

Create one function and write the following code inside that function!

       
    try
        {
            con= DriverManager.getConnection("jdbc:mysql://localhost/combobox", "root","");
            String sql = "select * from combobox ";
            pst = con.prepareStatement(sql);
            rs = pst.executeQuery();
            while(rs.next())
            {
                String name = rs.getString("fname");
                jComboBox1.addItem(name);
            }
            
        }catch(Exception ex)
        {
            JOptionPane.showMessageDialog(null, ex);
        }
       
 

call this function inside the constructor of that class i.e. under the initComponents();

 Watch The Video: