我如何在While循环中跳过循环迭代

Question

BigDecimal baseAmt = Env.ZERO;
                    String sql = "SELECT il.LineNetAmt, COALESCE(il.TaxAmt,0), i.IsSOTrx "
                            + "FROM C_InvoiceLine il"
                            + " INNER JOIN C_Invoice i ON (il.C_Invoice_ID=i.C_Invoice_ID) "
                            + "WHERE il.C_Invoice_ID=? AND il.C_Tax_ID=?";
                    PreparedStatement pstmt = null;
                    ResultSet rs = null;
                    try
                    {
                        pstmt = DB.prepareStatement (sql, get_TrxName());
                        pstmt.setInt (1, getC_Invoice_ID());
                        pstmt.setInt (2, getC_Tax_ID());
                        rs = pstmt.executeQuery ();

                        /*MInvoiceLine[] lines1 = getLines(false);
                        for (int a = 0; a < lines1.length; a++)
                        {MInvoiceLine sLine = lines1[a];*/


                        while (rs.next ())
                        {

                            MInvoiceLine[] lines1 = getLines(false);
                            for (int a = 0; a < lines1.length; a++)
                            {
                                MInvoiceLine sLine = lines1[a];

                            //  BaseAmt
                             baseAmt = rs.getBigDecimal(1);
                             for (int j = 0; j < cTaxes.length; j++)
                                {

                                    /*if (!iTax.calculateTaxFromLines1())
                                    return false;*/
                                    MTax cTax = cTaxes[j];
                                    BigDecimal taxAmt = cTax.calculateTax1(baseAmt, isTaxIncluded(), getPrecision());
                                    MInvoiceTaxLine newITax = new MInvoiceTaxLine(getCtx(), 0, get_TrxName());
                                    MProduct product = MProduct.get (getCtx(), sLine.getM_Product_ID());
                                    newITax.setClientOrg(this);
                                    newITax.setC_Invoice_ID(getC_Invoice_ID());
                                    newITax.setC_Tax_ID(cTax.getC_Tax_ID());
                                    //newITax.setPrecision(getPrecision());
                                    //newITax.setIsTaxIncluded(isTaxIncluded());
                                    newITax.setBaseAmount(sLine.getPriceEntered());
                                    newITax.setM_Product_ID(product.getName());
                                    newITax.setBaseAmount(baseAmt);
                                    newITax.setCaculatedTaxAmt(taxAmt);
                                    newITax.saveEx(get_TrxName());
                                    //
                                    if (!isTaxIncluded())
                                        grandTotal = grandTotal.add(taxAmt);
                                    }
                            }   

                        }
                    }    


                    catch (SQLException e)
                    {
                        throw new DBException(e, sql);
                    }
                    finally
                    {
                        DB.close(rs, pstmt);
                        rs = null; pstmt = null;
                    }   
                }

在上面的代码执行是1）查询进入while循环，第二个循环但我想首先它应该line1和第二次它应该去，然后在它内部shloud取第二个值的行。

请帮帮我