How to develop Online Billing Systems in Java NetBeans using If Statement; this tutorial also include how to create a calculator in Java NetBeans.\r<br>\r<br>For the Calculator equals codes, Note: To arrive at two decimal places change: answer = String.format(%.0f, result);\r<br>TO\r<br>answer = String.format(%.2f, result);\r<br>\r<br>\r<br>How to Create Billing System Project in Visual Basic.Net, see link below.\r<br>\r<br>\r<br>How to Create Online Billing Systems in Visual Basic.Net, see link below.\r<br>\r<br>\r<br>\r<br>Subscribe for the source code.