The given code retrieves the code from the database into html table and there is a checkbox with each row. If the user select particular checkbox, then the particular row details will get fetched and allow the user to edit that particular record. User can edit multiple row from this code

1) Create book.jsp

<%@page import="java.sql.*"%>

<form name=myname method=post action="edit.jsp">
<table border="1">
<tr><td></td>
<td><b><u>bookid</u></b></td>
<td><b><u>Author</u></b></td>
<td><b><u>title</u></b></td>
</tr>
<%try{

Connection conn = null;
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mysql","root", "root");
ResultSet rs = null;
Statement st=null;
st=conn.createStatement();
rs = st.executeQuery("select * from book");
int i=0; while(rs.next()){ %>
<tr><td><input type="checkbox" name="check<%=i%>" value=<%= rs.getString("bookid") %>></td>
<td><%= rs.getString("bookid") %></td>
<td><%= rs.getString("author") %></td>
<td><%= rs.getString("title") %></td>
</tr><%
i++;
}
}catch(SQLException e){ System.out.println(e.getMessage()); } %>
</table>
<input type="submit">
</form>

2) Create edit.jsp

<%@page import="java.sql.*"%>

<%String id[]= new String[10];
for(int i=0;i<10;i++){
id[i]=request.getParameter("check"+i);
out.println(id[i]);
}
%>

<form name=myname method=post action="update.jsp">
<table border="1">
<tr>
<td><b><u>bookid</u></b></td>
<td><b><u>Author</u></b></td>
<td><b><u>title</u></b></td>
</tr>
<%try{

Connection conn = null;
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mysql","root", "root");
ResultSet rs = null;
Statement st=null;
st=conn.createStatement();
for(int a=0;a<10;a++){
rs = st.executeQuery("select * from book where bookid='"+id[a]+"'");
while(rs.next()){ %>
<tr>
<td><input type="text" name="bid" value="<%= rs.getString("bookid") %>"></td>
<td><input type="text" name="auth" value="<%= rs.getString("author") %>"></td>
<td><input type="text" name="tit" value="<%= rs.getString("title") %>"></td>
</tr><%
}
}
}catch(SQLException e){ System.out.println(e.getMessage()); } %>
</table>

<input type="submit">

3)Create update.jsp

<%@page import="java.sql.*"%>
<%
String d[] =request.getParameterValues("bid");
if(d !=null) {
for(int i=0;i<d.length;i++) {
out.println(d[i]);
}
}
String name[] =request.getParameterValues("auth");
if(name !=null) {
for(int i=0;i<name.length;i++) {
out.println(name[i]);
}
}
String title[] =request.getParameterValues("tit");
if(title !=null) {
for(int i=0;i<title.length;i++) {
out.println(title[i]);
}
}
%>
<%
try{
Connection conn = null;
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mysql","root", "root");

Statement st=null;
st=conn.createStatement();
for(int a=0;a<10;a++){
String book_id=d[a];
String author=name[a];
String tit=title[a];
st.executeUpdate("update book set author='"+author+"', title='"+tit+"' where bookid='"+book_id+"'");
}
}
catch(Exception e){
e.printStackTrace();
}
%>