public Search_BookNameID1() throws SQLException {
        try {
            initComponents();
            lblBookName.setText(" ");
            jLabel3.setText(" ");
            jLabel6.setText(" ");
            jLabel8.setText(" ");
            jLabel10.setText(" ");
            jLabel12.setText(" ");
            jLabel14.setText(" ");
            jLabel16.setText(" ");
            jTable3.setRowHeight(20);
            jTable2.setRowHeight(20);
            jButton2.setEnabled(false);
            ResultSet rs,rs2;
            String s1,s2;
            
            
            rs = new Load_combo().getCat();
            rs2=new Load_combo().getrackno();
            /*add items to combobox*/
            while (rs.next()) {
                s1 = rs.getString(1);
                jComboBox1.addItem(s1);
            }
             while (rs2.next()) {
                s2 = rs2.getString(1);
                jComboBox2.addItem(s2);
            }
            
            
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(Search_BookNameID1.class.getName()).log(Level.SEVERE, null, ex);
        }
        
        
        
    }