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LogicPro, Computer Software Engineer
Category: Programming
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Experience:  Expert in C, C++, Java, DOT NET, Python, HTML, Javascript, Design.
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I am working on a servlet and Im trying to display an array

Customer Question

I am working on a servlet and I'm trying to display an array of objects in that servlet, but I keep getting errors.
Submitted: 1 year ago.
Category: Programming
Expert:  LogicPro replied 1 year ago.
Hi
Welcome to JustAnswer
What errors are you getting?
Zip all files, upload the zipped file to http://wikisend.com and post download link here.
Customer: replied 1 year ago.

I'm using Netbeans to develop the servlet and I get messages like "; expected" and other syntax errors I don't understand. What I'm trying to do is instead of using a JSP, I want to use a servlet that will display an array of music that the user selects from a listbox. The code that I used in the JSP looks like this:


<p>We'll use email to notify you whenever we have new releases for these
types of music:</p>
<tr>
<td align="right"></td>
<td>
<%
String[] MusicInterests = request.getParameterValues("


musicInterests");
for (int i = 0; i < MusicInterests.length; i++)
{
%>
<%= MusicInterests %><br>

<% }

%>
</td>
</tr>



That code works great in the JSP, but when copied into the servlet, I get the errors. What format should I be using instead?
Expert:  LogicPro replied 1 year ago.
Could you provide me your servlet (.java) file
Customer: replied 1 year ago.

Sure! Here it is:


 

Expert:  LogicPro replied 1 year ago.
It did not come
upload the file to http://wikisend.com and post download link here.
Customer: replied 1 year ago.

http://wikisend.com/download/908414/DisplayMusicChoicesServlet.java

Expert:  LogicPro replied 1 year ago.
Hi Jonathan,

I reviewed the file.

Copy paste of JSP page contents will not work.
To render JSP contents to client(browser), you will need to put them inside println method of out object of PrintWiter class.

you can write:
< html > in JSP but in servlet, you will need to write:
out.println("<html>");

Also using System.out.println will display contents on server console and not in client window. You will need to use out.println again.

Use "out" to send content to browser
See code of ServletDemo1.java at

http://www.mkyong.com/servlet/a-simple-servlet-example-write-deploy-run/

Hope it clears or reply if anything else is needed and share your entire project

You can ask me again using "For LogicPro only" at the start of your questions like other customers to get instant answers.
It will ensure that question is for me.
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Remember, if for any reason you are unsatisfied with my answer, we can continue the conversation until you’re satisfied and rate my answer as excellent. I can address follow up questions on original requirements at no extra charge and I’m always here to help. Thank you for using JustAnswer!
Customer: replied 1 year ago.

I uploaded the entire project at:


http://wikisend.com/download/532962/ch06emailex1.zip


I did follow the correct syntax for servlets, but it still did not work.


I was able to get everything else to display correctly except for the arraylist that should come up when the user chooses more than one type of music from the listbox.

Expert:  LogicPro replied 1 year ago.

Let me review. Please wait
Expert:  LogicPro replied 1 year ago.
There were syntax error. I have corrected them. Now it is working.

Download modified java file from
http://wikisend.com/download/501182/DisplayMusicChoicesServlet.java

LogicPro, Computer Software Engineer
Category: Programming
Satisfied Customers: 9663
Experience: Expert in C, C++, Java, DOT NET, Python, HTML, Javascript, Design.
LogicPro and 3 other Programming Specialists are ready to help you
Customer: replied 1 year ago.

Excellent! I've been trying to teach myself web design and I sometimes struggled with the syntax in Java. Thanks for your help!

Expert:  LogicPro replied 1 year ago.

You can ask me again using "For LogicPro only" at the start of your questions like other customers to get instant answers.
It will ensure that question is for me.
Please bookmark my profile page:
http://www.justanswer.com/homework/expert-logicpro/
so you can come back and ask me a question anytime.
Remember, if for any reason you are unsatisfied with my answer, we can continue the conversation until you’re satisfied and rate my answer as excellent. I can address follow up questions on original requirements at no extra charge and I’m always here to help. Thank you for using JustAnswer!
Expert:  LogicPro replied 1 year ago.
Hi again,
Just following up with you to see how everything is going and if you have more questions for me.
You can ask me again using "For LogicPro only" at the start of your questions like you do to get instant answers.
It will ensure that question is for me.
Please bookmark my profile page:
http://www.justanswer.com/homework/expert-logicpro/
so you can come back and ask me a question anytime.
If you need any additional information on this answer, please don't hesitate to ask by clicking on 'Reply to Expert', and I will reply as soon as possible.
I hope you found the information in my answer helpful, and if so, please let me know, here. Thank you!
Thanks very much for using Just Answer!
Best wishes
LogicPro
Customer: replied 1 year ago.

Well, I am actually trying to create a website for fun and I might have questions along the way. Would you be willing to help me out with that in case I do need help?

Expert:  LogicPro replied 1 year ago.
yes, I would be happy to help you. You can post a new question using "For LogicPro only".
Customer: replied 1 year ago.

For LogicPro only


 


Hi,


Are you online tonight? I had mentioned before that I wanted to build a website for fun and needed help. I found an example in the Murach's Java Servlets and JSP book that I wanted to build and I think I will need help getting the pages to work together.


 

Expert:  LogicPro replied 1 year ago.
yes, I am online. You can post a new question using "For LogicPro only" as the question text.

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