In this code all the radiobuttons are getting checked

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In this code all the radiobuttons are getting checked. I want any one radiobutton to be checked in all rows.
please do anybody help me.

XML

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>


<head>
<title>HTML Tables</title>
</head>
<body>

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

<table bgcolor="lightgray" border="5" width="60%" cellpadding="5" cellspacing="0.5" color="blue" >
<tr>

<th colspan ="3" bgcolor="#999999"><br>


<div align="Center" > <font face="verdana" size="5" color="white"> ATTENDANCE </font>
</div>
</th>
</tr>

<tr>
<td width="14%"><h3>Register No</td>
<td><h3> Student Name</td>
<td><h3> Attendance</td>
</tr>
<tr>
<td> 1 </td>
<td> <input type="radio" >Present <input type="radio">Absent
<tr>
<td>2</td>
<td> <input type="radio" >Present <input type="radio">Absent
</tr>



<%
Connection dbcon=null;

    DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
        dbcon=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger");
        Statement stmt=dbcon.createStatement();
        ResultSet rst=null;

rst=stmt.executeQuery("select * from studenttables");
while(rst.next())
{%>
<tr>

<td><%=rst.getString("name")%></td>

</tr>
<tr>
<td><%=rst.getString("name")%></td>
</tr>

<tr>
<td><%=1%></td>
<td><%=rst.getString("name")%></td>
<td><input type="radio" >Present <input type="radio">Absent
</tr>

<% } %>


</table>
</body>
</html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>

</body>
</html>

Posted 22-Oct-15 8:11am

Member 11059655

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Krunal Rohit · Answer 1 · 2015-10-22T08:19:00

Solution 1

Replace your radio button code with the following,

HTML

<input type="radio" name="presenceFor1" />

Give unique name for each row, and same name for each td in row for radio buttons.
Read W3C[^] for more idea.

-KR

Posted 22-Oct-15 8:19am

Krunal Rohit

Updated 22-Oct-15 8:25am

v3

Palash Mondal_ · Answer 2 · 2015-10-22T18:29:00

You can simply give the same name to the respective radio groups to achieve this like:

HTML

<tr>
    <td>1</td>
    <td>
        <input type="radio" name="rbtnAttendance1" />Present
        <input type="radio" name="rbtnAttendance1" />Absent
    </td>
</tr>
<tr>
    <td>2</td>
    <td>
        <input type="radio" name="rbtnAttendance2" />Present
        <input type="radio" name="rbtnAttendance2" />Absent
    </td>
</tr>

This way you can only select one option from the radio buttons with same name.