Item State change of JComboBox and Get values from database and show Data on JTable.
   try      {      Class.forName("com.mysql.jdbc.Driver");      java.sql.Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3305/supplimentry","root","root");      String sql="select * from inventory where Brand_Name='"+jComboBox3.getSelectedItem().toString()+"'";      java.sql.PreparedStatement pst=con.prepareStatement(sql);      DefaultTableModel tm33 = (DefaultTableModel)list1.getModel();      tm33.setRowCount(0);   TableColumn col = new TableColumn(tm33.getColumnCount());   JTableHeader header = list1.getTableHeader();    header.setBackground(Color.yellow);          ResultSet rs = pst.executeQuery(sql);      int i=0;      while(rs.next())      {      Vector v2 = new Vector();      v2.addElement(rs.getString(1));      v2.addEle...