Need the Full source code for this problem in C++ language

\begin{tabular}{|c|l|l|} \hline 1. & Task & DevelopaCustomerBillingSystemwhichcanbeusedinanydepartmentalstore,shops,cafesetc,forbillingtothecustomer.Theapplicationshouldkeeptherecordssuchasname,address,mobilenumber,paidamount,dueamount,paymentdateetc.ofregularcostumer.Moreover,itmusthavefeatureofaddinganewcustomer,andeditingtheaccountatanytime. \\ \hline 2. & Breadth & Object Oriented Programming, Computer Programming \& Computer \\ \hline \end{tabular}