online test project on java using servlets and jsp

as i am doing online test project on java using jsp and servlets ,,,the problem is in the code of jsp file which i have sent,...,i used next and previous buttons and used two form tags ..,i need to place the next button and previous button side by side,but problem occuring calling servlet...,if place buttons in one row side by side,..,action performing for both button is same ,i mean it will call nextaptiduteservlet action only always,,,if i take of the form tag of preservlet out of table ...,both buttons works properly .....,so i want a solution for placing the two buttons side by side and the action should be performed properly......,

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July 30, 2012 at 11:46 AM

Here is a jsp application. Here we have created a table test(ques,op1,op2,op3,op4,ans) and answers(id,ans).

1)form.jsp:

<%@page import="java.sql.*"%>
    <html>
    <form method="post" action="result.jsp">
    <table>
    <%
    Class.forName("com.mysql.jdbc.Driver").newInstance();
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/register","root";, "root");
    Statement st=connection.createStatement();
    ResultSet rs=st.executeQuery("Select * from test");
    int i=1;
    while(rs.next()){
    %>
    <tr><td><%=i%></td><td><%=rs.getString("ques")%></td><td><input type="radio" value="<%=rs.getString("op1")%>" name="radio<%=i%>"/><%=rs.getString("op1")%></td><td><input type="radio" value="<%=rs.getString("op2")%>" name="radio<%=i%>"/><%=rs.getString("op2")%></td><td><input type="radio" value="<%=rs.getString("op3")%>" name="radio<%=i%>"/><%=rs.getString("op3")%></td><td><input type="radio" value="<%=rs.getString("op4")%>" name="radio<%=i%>"/><%=rs.getString("op4")%></td></tr>

    <%
    i++;
    }
    %>
    <tr><td><input type="submit" value="submit"></td></tr>
    </table>
    </form>
    </html>

2)result.jsp:

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

    <%
    String st[]=new String[10];
    for(int i=0;i<st.length;i++){
    int j=i+1;
    st[i]=request.getParameter("radio"+j);
    System.out.println(st[i]);

    }
    Class.forName("com.mysql.jdbc.Driver").newInstance();
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/register","root";, "root");
    Statement stmt=connection.createStatement();
    ResultSet rs=stmt.executeQuery("Select ans from answers");
    String ans="";
    while(rs.next()){
    ans+=rs.getString("ans")+" ";
    }
    int count=0;
    String answers[]=ans.split(" ");
    for(int i=0;i<answers.length;i++){
    if(st[i].equals(answers[i])){
    count++;
    }
    }
    out.println("Your "+count+" answers are correct");
    %>

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