How to display array

Hi, I have a problem to display array from my database. The following are the two files that I tried to input multiple values in mailaddress database in the second file and I tried to display the values from the database when the user login the first file. The values are recorded in the database well but I always got java.lang.NullPointerException error in my first file. I checked the code, it shows that array display wrong. Would you please help me? Thanks a lot in advance.
<zhangmailinputtest.jsp>
<%@ page language="java" contentType="text/html; charset=Shift_JIS" %>
<%@ page import="beanYama.*,java.sql.*,java.util.*,java.text.*" %>
<%@ include file="inc_conv_char.jsp" %>
<%
String uid =(String)session.getAttribute("uid");
String unam =(String)session.getAttribute("unam");
String depart =(String)session.getAttribute("depart");
String perms =(String)session.getAttribute("perms");
String flag =(String)session.getAttribute("flag");
if(flag==null){
     response.sendRedirect("index.jsp");
}else{
%>
<html>
<body>
<%!      String[] name;
     String[] departa;
     String[] email;
%>
<%
          Connection con = null;
          Statement stmt1 = null;
          ResultSet rsq = null;
          Class.forName("org.gjt.mm.mysql.Driver");
          con=DriverManager.getConnection("jdbc:mysql://localhost/progress?user=ntjs&password=ntjs&useUnicode=true&characterEncoding=Shift_JIS");
          stmt1=con.createStatement();
     rsq=stmt1.executeQuery("SELECT name AS name1 from mailaddress;");
          if(rsq.next()){
               for (int i=0;i<name.length;i++) {
               name[i] = rsq.getString("name1");
               rsq.next();
          stmt1.close();
          con.close();
%>
<form action="zhangmailtestfinal.jsp" method="post">
<table width="60%" border="1" cellpadding="1" cellspacing="1" bordercolor="#000099">
<tr>
<td width="20%"><div align="center">Name</div></td>
<td width="20%"><div align="center">Department</div></td>
<td width="50%"><div align="center">Address</div></td>
</tr>
<tr>
<td><input type="text" name="name" size="25" value="<%=name[0]%>" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
<tr>
<td><input type="text" name="name" size="25" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
<td><input type="text" name="name" size="25" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
<tr>
<td><input type="text" name="name" size="25" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
<td><input type="text" name="name" size="25" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
<tr>
<td><input type="text" name="name" size="25" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
<td><input type="text" name="name" size="25" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
<tr>
<td><input type="text" name="name" size="25" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
<td><input type="text" name="name" size="25" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
<tr>
<td><input type="text" name="name" size="25" align="middle"></td>
<td><input type="text" name="departa" size="25" align="middle"></td>
<td><input type="text" name="email" size="53"align="middle"></td>
</tr>
</table>
<input type="submit" name="save_button" value="Save">
</body>
</CENTER>
</html>
<%
%>
<zhangmailtestfinal.jsp>
<%@ page language="java" contentType="text/html; charset=Shift_JIS" %>
<%@ page import="beanYama.*,java.sql.*,java.util.*,java.text.*" %>
<%@ include file="inc_conv_char.jsp" %>
<%
String uid =(String)session.getAttribute("uid");
String unam =(String)session.getAttribute("unam");
String depart =(String)session.getAttribute("depart");
String perms =(String)session.getAttribute("perms");
String flag =(String)session.getAttribute("flag");
if(flag==null){
     response.sendRedirect("index.jsp");
}else{
%>
<html>
<body>
<%!
     Connection con = null;
     PreparedStatement ps = null;
     ResultSet rs = null;
%>
<%
     String[] name = request.getParameterValues("name");
     String[] departa = request.getParameterValues("departa");
     String[] email = request.getParameterValues("email");
try{
          Class.forName("org.gjt.mm.mysql.Driver");
          con=DriverManager.getConnection("jdbc:mysql://localhost/progress?user=ntjs&password=ntjs&useUnicode=true&characterEncoding=Shift_JIS");
          Statement stmt0=con.createStatement();
          stmt0.executeUpdate("delete from mailaddress");
          String query ="INSERT INTO mailaddress (mail_userid,name,departa,email) VALUES (?,?,?,?)";
          ps = con.prepareStatement(query);
               for (int i=0;i<name.length;i++){
               ps.setString(1,uid);
               ps.setString(2, name);
               ps.setString(3, departa[i]);
               ps.setString(4, email[i]);
               ps.addBatch();
          ps.setString(4,uid);
          int[] results = ps.executeBatch();
          Statement stmt1=con.createStatement();
          ResultSet rsq=stmt1.executeQuery("SELECT name AS name1 from mailaddress where mail_userid=" + "'" + uid + "'" + ";");
          if(rsq.next()){
               for (int i=0;i<name.length;i++) {
               name[i] = rsq.getString("name1");
               rsq.next();
} catch (Exception e) {
               throw new ServletException(e);
          } finally {
               try {
                    if(rs != null) {
                         rs.close();
                         rs = null;
                    if(con != null) {
                         con.close();
                         con = null;
               } catch (SQLException e) {}
%>
</html>
<%
%>

Where exactly is the exception being generated?
My guess is this bit here:
if(rsq.next()){
for (int i=0;i<name.length;i++) {
    name = rsq.getString("name1");
    rsq.next();
}I don't think your name array has been initialised in this file. Plus it assumes that the name array has exactly the same number of items as the query returns. To me thats rather dubious...
I would suggest this instead
while (rsq.next()){
    name = rsq.getString("name");
}I'm still not entirely certain what you are trying to accomplish, but thats probably the cause of the null pointer.
good luck,
evnafets

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if you load it all into the buffer that is going to be very difficult. I would suggest loading it into some sort of collection. I like using an ArrayList.
Then pass the arraylist.
you will then on the jsp iterate through the arrayList using what every you want.. el, logic tags, scriplets.
so something like
ArrayList arrayList = new ArrayList();
while(rs.next()){
arrayList.append(rs.getString(1));
//or possibly an arrayList of String arrays
//maybe using nested for loops. Inner for loop adds result to string[] then //outer adds string[] to arrayList.
//can be done any number of ways based on your expected result set.

How to display array

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