체크박스 값 받아오기

주소입력 : http://localhost:8090/p1/a.jsp

a.jsp

=========================

<%@ page language="java" contentType="text/html; charset=EUC-KR"
 pageEncoding="EUC-KR"%>
<form action="b.jsp" method="post">
<h1>당신이 좋아하는 동물은?</h1>
<input type="checkbox" name="animal" value="돼지">돼지<br>
<input type="checkbox" name="animal" value="토끼">토끼<br>
<input type="checkbox" name="animal" value="개">개<br>
<input type="checkbox" name="animal" value="고양이">고양이<br>
<hr>
<h1>당신이 좋아하는 과목은?</h1>
<input type="checkbox" name="subject" value="자바">자바<br>
<input type="checkbox" name="subject" value="자바스크립트">자바스크립트<br>
<input type="checkbox" name="subject" value="에이치티엠엘">에이치티엠엘<br>
<input type="checkbox" name="subject" value="씨에스에스">씨에스에스<br>

<input type="submit" value="보기">
</form>

b.jsp

==========================

 <%@ page language="java" contentType="text/html; charset=EUC-KR"
 pageEncoding="EUC-KR"%>

<%
request.setCharacterEncoding("euc-kr");
String[] array1=request.getParameterValues("animal");
 for(String s1:array1)
 out.write(s1+"<br>");
String[] array2=request.getParameterValues("subject");
 for(String s2:array2)
 out.write(s2+"<br>");
%>