how to Print arraylist in jsp using java method

Question

This is Java class:

package com.example;

import java.util.ArrayList;

public class sample {

    public void print() {

        ArrayList<String> l = new ArrayList<String>();
        l.add("a");
        l.add("b");

    }
}

This is my Jsp page :

<%@page import="java.awt.List"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>

<%@ page import="com.example.sample"%>
<%@page import="java.util.*"%>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<%
    sample s = new sample();
%>


</body>
</html>

I dont know how to call print merhod and how Print list in jsp page so that i print data in jsp page list please help me how i will Implement i am learning this.

You need to return the list to JSP file. Use `out.print()` to print on web page. — Vicky Thakor, Oct 02 '13 at 08:50
No i have to do using java method plz write code i have use iterator but not understanding.i am beginner — user2837886, Oct 02 '13 at 08:52
It would be best to add the List as an attribute in a request passed to a servlet. From the servlet forward to the jsp and print the list with jstl. — Kevin Bowersox, Oct 02 '13 at 08:52

Suresh Atta · Accepted Answer · 2013-10-02T09:04:36.127

3

First return a list from print method

public List<String> print() {

        ArrayList<String> l = new ArrayList<String>();
        l.add("a");
        l.add("b");

     return l;

    }

Don't use scriplets, Use JSTL

<%
    sample s = new sample(); //not recommended.Pass this object from servlet
    List<String> list = s.print();
%>

with that print where ever you want to print in jsp

With JSTL

<c:forEach items="${list}" var="item">
    ${item}<br>
</c:forEach>

With scriplets (not recommended);

<% for (int i=0;i<list.size();i++)
          {

              out.println(list.get(i));

          } %>

With help of iterator;

 <%  Iterator<String> iterator = list.iterator();
    while (iterator.hasNext()) {    
        out.println(<iterator.next());
    }
 %>

Side note:Not tested ,and make sure that you have imported all used classes in JSP.

edited Oct 02 '13 at 09:04

answered Oct 02 '13 at 08:52

Suresh Atta

120,458
37
198
307

I have to use Iterator . – user2837886 Oct 02 '13 at 08:55
@user2837886 Why do you *have* to? – Anthony Grist Oct 02 '13 at 08:56
I dont need to Use for each an all In jsp page i have to Print using iterator as while loop. – user2837886 Oct 02 '13 at 08:56
NOt getting Output please complete this I am totally new in this – user2837886 Oct 02 '13 at 08:57

score 0 · Answer 2 · answered Oct 02 '13 at 10:05

0

<%
Class c = new Class(); 
List<String> list = c.print();
for (c : list) {
  //print list here
}
%>

answered Oct 02 '13 at 10:05

Chirag Kathiriya

427
5
14

how to Print arraylist in jsp using java method

2 Answers2

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