ArrayList « API « JSP-Servlet Q&A

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1. Not getting the proper size of an ArrayList in JSP

I'm having trouble getting the right number of elements in the ArrayList alt in the JSP page below. When I view the JSP it shows the size is 1 (<%=alt.size()%>) when ...

2. ArrayList to Table in JSP

I have an ArrayList and i am trying to display it in a table ..... ArrayList rows = .... .....

    <table cellspacing="1" cellpadding="4" border="3">

3. Getting a java collection of objects in Alphabetical order

I have a question that I dont really know where to start. So I thought i'd ask it here. Basically, I have a drop down with names in it. I want these ...

4. How can I pass an ArrayList from one servlet another?

I have already sent arraylist1 from one servlet to another. It works. Now I want to pass arraylist2 to another jsp/servlet, but I get an error: java.util.nullPointer Exception. How can I ...

5. how do i pass a pass a arraylist from html page to a servlet in java?

how do i pass a pass a arraylist from html page to a servlet in java?

6. Passing an Arraylist of Java objects to a servlet from Java program

I would like to pass an arrayList of objects to a servlet from a java program. Can some one please tell me, how this can be done.

7. ArrayList in Java

What I want to do is to check if the same object exists in an ArrayList, and update its quantity by 1. But instead, the code is adding the same Item ...

8. How to split an arraylist based on its objects?

I have two tables:
Table one:

  • Stores the project details.
  • Project ID is the primary key.
  • Columns:
    • Project Name
    • Project ID
    • FromDate
    • ToDate
    • Address of related Documents
    • Brief Description of Project
Table two:
  • Stores the team details.
  • Columns:
    • Team
I am trying to ...

9. ArrayList to JSP page?

same as normal usage, but you have to implement a bean(simply class) that contains an ArrayList, not by extending it, have those setters and getters method if you're comfort to use ...

11. i have data in ArrayList in jsp ,I want to export those data to pdf and excel

i have data in ArrayList and i want to export those data to pdf and excel format on click respectivily . and after those data has writen in pdf or excel ...

13. Server Wide Arraylist ?

Hi all, Possibly not the right forum to post in but I'll try anyway as I'm not 100% sure where to ask!! I'm currently trying to script a simple chat application (yes, another one **yawn** !!) and am trying to do it so that when a user enters they are added to a list of users currently in the room. I ...

14. Returning ArrayList from servlet to jsp

16. How to pass an arrayList from a JSP to a servlet.

How to pass an arrayList from a JSP to a servlet. I tried to use request.setAttribute and tried to forward it to a servlet using and it didn't work, because I use <%@ include file= and

17. How to Pass ArrayList to Applet?

19. Next/Previous Button for arrayList

Hi, I am new to java and am trying to create a jsp page with prev/next buttons that show each individual record in an arrayList. My previous button works like it should be the next button but I get errors if I try to reverse the syntax. I really need help! My code is below. Thanks all! int agreementIndex = 0; ...

20. ArrayList

21. Displaying large arraylist on a jsp

22. ArrayList throws error in JSP page

No problem on the name. The only rule I remember seeing was "be nice", so I must have overlooked the stringent naming policy. Okay, so if I can't mix directives and scriplets in that manner, then what manner can I mix them in? And if no manner at all, how might I accomplish what I'm trying to accomplish? Thanks, Ben

24. ArrayList- How Safe to use in Jsp

28. ArrayList gets duplicate values in JSP

29. Arraylist nullpointer exception

Can some one please tell me why I am getting a null pointer exception when I try to retrieve my arraylist elements. When I look at my print lines I see that the array does have values. Here is the code to build the array: private void getAllWhses(){ int i = 0; ArrayList Warehouses = new ArrayList(); ArrayList WhsDesc = new ...

30. ArrayList not displaying

Hi all, I am desperate for some help in this, I have no idea what I am missing. Below is the code- one arraylist works (operands) and the other (parameters) doesn't- and I can't figure out why...The weird thing is that I am not receiving any errors when I run it on my server, and although a drop down box appears ...

31. ArrayList and Display Results in JSP

32. JSP Not Reading Arraylist

33. how iterate arraylist included in a object with c:for


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35. Using Two ArrayLists For One Table

<%@ taglib uri="" prefix="c" %> <%@ page import="java.util.*" %> <% List rows = new ArrayList(); request.setAttribute("rows", rows); for(int i = 1; i <=12; i++){ List cols = new ArrayList(); for(int j = 1; j <=12; j++){ cols.add(String.valueOf(i * j)); } rows.add(cols); } %> nested forEach tags



37. Sending arraylist to servlet from jsp

38. ArrayList in JSP

This isn't something that someone on a list of forum can help you with. This is basic debugging. If getAttribute is returning null, then you need to examine the code that binds "result" to request scope. Also, remember, that request, as its name suggests, is only good for one request/response cycle. If you bind something to request scope and then try ...

41. To do Pagination from arraylist in jsp

43. iterating ArrayList in forEach

I read some where that in JSP2.0 by default: <%@ page isELIgnored="false" %> If we are using JSP1.2, then we have to set the value as false for EL externally. I am using JSP2.0. But still code not working without isELIgnored=false. And also we have two options to set the EL flag either in web.xml ...

44. Trying to access an arraylist or a cart object from a jsp page

Hi all I am trying to learn the shopping cart tutorial from Murach's servlets and jsp book. I am trying to integrate MQ series with that. In this project, some products are stored in a database and every time the user clicks on some product page, it should not make a database call. The database records are fetched in a Message ...

45. passing arraylist from jsp to jsp

47. How to get an ArrayList Object in servlet from JSP?

hi all please give the solution for this without using session and application... In test1.jsp file i am setting values for my setter methods using tags as shown below. After that i am adding the usebean object to array list, then using request.setAttribute("arraylist object") ---------Code---------- <%--

49. passing an ArrayList from a servlet to JSP

No, class variables will only create thread safety issues that will cause you no end of problems. What do you mean by "calling" a JSP from a servlet? Are you using a dispatcher to forward to the JSP, or are you redirecting via the response? Most commonly, data to be passed to the JSP is place in request scope as scoped ...

50. Passing an ArrayList between servlets

51. ArrayList()

52. problem---how to display ArrayList of ArrayList in jsp page.

Guys, I am stuck , where I am not able to find out the way to display the ArrayList of ArrayList in jsp page. So if possible Please help me. My code in DAO class is as under. //DAO class public ArrayList getF(String[] pg) throws Exception { //pg is nothing but Array of String , which is used for select ...

53. Unable to pass Arraylist from one JSP to another

Hi, I am new to JSP and was trying to pass an arraylist of strings from one jsp to another via an iframe. But for some reason i get null pointer exception. I am pretty certain i am doing something stupid... but am having a hard time figuring out what is wrong... I would really appreciate it if someone could guide ...

56. ArrayList

57. pagination for ArrayList

58. Problem passing an arrayList from a servlet to a jsp

Hello, I am having trouble getting an ArrayList I created in my servlet to get passed to my JSP. I think I have correctly put the resultset into my bean called SubmissionEvents. From here I am trying to pass this arraylist to my JSP(homepage.jsp). My app hangs when I run it, after I login into app. If I remove the

60. Displaying an arraylist using scriplet

62. Returning arrayList and Final line value alone getting printed in jsp

Hi, I am having a method in my jsp which is supposed to return arraylist values like mentioned below. EURUSD ,1.3231,1.3231, 8/9/2010 , 1:18pm EURAUD ,1.4436,1.444, 8/9/2010 , 1:18pm NZDAUD ,0.7954,0.7965, 8/9/2010 , 1:18pm . When i try to print the returned values, the final value alone printed like NZDAUD ,0.7954,0.7965, 8/9/2010 , 1:18pm From java ranch forum's previous threads I ...

64. Cannot fetch data from arraylist

65. Displaying contents of arraylist in jsp

67. Passing ArrayList from JSP to Servlet

Hi all, I need to pass Arraylist from a jsp to my Handler class via Servlet . I can't use session since my handler class creates new session everytime . How could i achieve it ... This requirement is for pagination.. I populate arrayList values in my Data class using a web service call. I return those list back to Jsp ...

68. how to store an ArrayList into cookies?

70. Reset ArrayLists in JSP page

72. JSP Compile error - ArrayList

73. how to get an arraylist object into jsp page

My java code is: ~~~~~~~~~~ public ArrayList getUsers() { ArrayList arList=new ArrayList(); try { Session session = LoginUtility.getSession(); Query lst= session.createSQLQuery("select * from loginuser"); for(int i=0;i Display ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>74. <a href=''>Pagenation with jsp and Arraylist</a><span class='articleProductElementHost'></span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>75. <a href=''>get arraylist in servlet</a><span class='articleProductElementHost'></span></h3></div></td></tr></table></div></div><footer><p class='pull-right'><a href=''></a>  | Email:info at | © Demo Source and Support. All rights reserved.</p></footer></div></body></html>