Question

A web page with a form to compute the future value is displayed below.  The textbox is named Loan, the listbox is named Rate and the radiobuttons belong to a Year group.

Loan: 300000 Rate: 5% Select term: 15-year O 30-year Payment: $2,219 06 Compute Payment

(i) If the payment is computed by a JavaScript function named ComputePmt(), complete the ComputePmt function:

Function ComputePmt()

{

}

(ii).  If the form is processed by a JSP program named ComputePmt.jsp, complete the jsp program to compute the payment:

<%

%>

Answer 1

ComputePmt.jsp

function ComputePmt()
{
  
   var loan=parseFloat(document.getElementById("Loan").value);
   var rate=parseFloat(document.getElementById("rate").value);
   var year=Number(document.getElementById("year").value);
   var interest=(loan*rate*year)/100; //implemented simple interest, change formula if required
var amt=loan+interest;
  
document.getElementById("payment").value="$"+amt;
}

Output:

Loan: 3125 4% 5% Rate: 5.5% Select Year: O 15-year 30-year Payment: $5234.375 Compute Payment