private void ListValueChanged(
     javax.swing.event.ListSelectionEvent evt) { // GEN-FIRST:event_ListValueChanged
   // TODO add your handling code here:
   // String part=partno.getText();
   try {
     String sql =
         "SELECT  TYPE,ITEM_NAME,QUANTITY,MRP FROM MOTORS WHERE ITEM_NAME='"
             + List.getSelectedValue()
             + "'";
     Class.forName("com.mysql.jdbc.Driver");
     Connection con =
         (Connection)
             DriverManager.getConnection("jdbc:mysql://localhost:3306/bharatmotors", "root", "");
     Statement stmt = con.createStatement();
     ResultSet rs = stmt.executeQuery(sql);
     while (rs.next()) {
       partno.setText(rs.getString("TYPE"));
       name.setText(rs.getString("ITEM_NAME"));
       qty.setText(rs.getString("QUANTITY"));
       rate.setText(rs.getString("MRP"));
     }
   } catch (Exception e) {
     JOptionPane.showMessageDialog(null, e.toString());
   }
 } // GEN-LAST:event_ListValueChanged
  private void jButton3ActionPerformed(
      java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jButton3ActionPerformed
    try {
      Connection con =
          (Connection)
              DriverManager.getConnection("jdbc:mysql://localhost:3306/bharatmotors", "root", "");
      Statement stmt = con.createStatement();

      ResultSet resultSet = stmt.executeQuery("select Bill_No from bill;");

      String productCode = null;

      while (resultSet.next()) {
        productCode = resultSet.getString("Bill_No");
      }
      int pc = Integer.parseInt(productCode);
      System.out.println(pc);
      no.setText((String.valueOf(++pc)));
      // TODO add your handling code here:

      String part = partno.getText();
      String itemname = name.getText();
      String qty1 = qty.getText();
      String rate1 = rate.getText();
      // String amo=amount.getText();
      String noo = no.getText();
      no1 = Integer.parseInt(noo);
      cname = custname.getText();
      bill1 = bill.getText();
      addr1 = addr.getText();

      String ta = tax.getText();
      int a = Integer.parseInt(qty1);
      int b = Integer.parseInt(rate1);
      int c = a * b;
      String str = Integer.toString(c);
      amount.setText(str);
      String str1 = amount.getText();
      /* String sql1="select Quantity from lubricants";
      String sql2="UPDATE LUBRICANTS SET QUANTITY=QUANTITY-qty1 WHERE PART_NO='"+partno+"'";
      Statement stmt1=con.createStatement();
      ResultSet rs1= stmt1.executeQuery(sql1);

      String ch=rs1.getString("QUANTITY");
      int q=Integer.parseInt(qty1);
      int r=Integer.parseInt(ch);
      if(q >r)
      {
          JOptionPane.showMessageDialog(this,"STOCK UNAVAILABLE");
      }
      else
      {
          stmt1.executeUpdate(sql2);
      }*/
    } catch (SQLException ex) {
      Logger.getLogger(Billspare.class.getName()).log(Level.SEVERE, null, ex);
    }
  } // GEN-LAST:event_jButton3ActionPerformed
  public void FillList() {
    try {

      String sql1 = "select  * from motors";
      Class.forName("com.mysql.jdbc.Driver");
      Connection con =
          (Connection)
              DriverManager.getConnection("jdbc:mysql://localhost:3306/bharatmotors", "root", "");
      Statement stmt = con.createStatement();
      ResultSet rs1 = stmt.executeQuery(sql1);
      DefaultListModel DLM = new DefaultListModel();

      while (rs1.next()) {
        DLM.addElement(rs1.getString(3));
        // DLM.addElement(rs1.getString(2));
      }

      List.setModel(DLM);
    } catch (Exception e) {
      JOptionPane.showMessageDialog(null, "e.getString()");
    }
  }