How to get array list size in java jsp?

Question

I have a form that ask for user to enter ID. This form is send to a servlet which checks database to see if user exist. If the user exists then it sends me back their ordere

Answer 1

you should set scope of your UserFound.jsp to request.

ArrayList orderList = (ArrayList )  request.getAttribute("theOrder");


<% If(orderList  != null) {%>

   <% for(String orderName : orderList ) { %>
      
 <%= orderName %> 
   <% } %>

<% }else{ %>
  No Order Found
<% } %>

OR

ArrayList orderList = (ArrayList )  request.getAttribute("theOrder");

<% If(orderList  != null) {%>

<% for(int orderNum =0;i< orderList.size();++orderNum  ) { %>
   
 <%= orderList.get(orderNum )%> 
<% } %>
<% }else{ %>
  No Order Found
<% } %>