| << Chapter < Page | Chapter >> Page > |
| Listing 11 - A JSP scriptlet. |
|---|
<%
String[]items = request.getParameterValues("item");
response.setContentType("text/html");String name = request.getParameter("firstName");
if(name == null){out.println("Empty");
}//end ifif(items != null){
for(int i = 0; i<items.length; i++){
%> |
The body of the for loop
Listing 12 contains the body of the for loop that began in Listing 11 . This is a combination of a JSP expression tag and raw HTML code to display the new value and also to create and populate a hidden field in theoutput.
| Listing 12 - The body of the for loop. |
|---|
<%= items[i] %><br/><input type="hidden" name="item" value="<%=items[i]%>"/> |
Another scriptlet
Listing 13 is another scriptlet containing pure Java code. This scriptlet terminates the for loop and the if statement that began in Listing 11 . It also begins a new if statement to display the new input value and also to create and populate the last hidden field containing the newly receivedinput value.
| Listing 13 - Another scriptlet. |
|---|
<%
}//end for loop}//end if
if(name != null){%> |
Another JSP expression tag
Listing 14 contains another JSP expression tag that displays the new input value. Listing 14 also creates and populates the last hidden field with the new input value.
| Listing 14 - Another JSP expression tag. |
|---|
<%= name %><br/><input type="hidden" name="item" value="<%=name%>"/> |
Terminating scriptlet and HTML code
Finally, Listing 15 shows a scriptlet containing a curly bracket to terminate the if statement that began in Listing 13 along with raw HTML code to terminate the HTML page.
| Listing 15 - Terminating scriptlet and HTML code. |
|---|
<%
}//end if%></p></form></body></html> |
I encourage you to copy the code from Listing 16 and Listing 17 Deploy the programs on your own server. Experiment with the code, making changes, and observing the results of your changes. Make certain that youcan explain why your changes behave as they do.
This section contains a variety of miscellaneous information.
Financial : Although the Connexions site makes it possible for you to download a PDF file for thismodule at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, you should beaware that some of the HTML elements in this module may not translate well into PDF.
I also want you to know that, I receive no financial compensation from the Connexions website even if you purchase the PDF version of the module.
In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale on Amazon.com showing me as the author. Ineither receive compensation for those sales nor do I know who does receive compensation. If you purchase such a book, please beaware that it is a copy of a module that is freely available on cnx.org and that it was made and published withoutmy prior knowledge.
Affiliation : I am a professor of Computer Information Technology at Austin Community College in Austin, TX.
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