(struts 1.2)retreiving values from multibox

[Santhosh Puttu]

I need to take check box values from jsp page to Action class.
And store values to database.
How to retreive the values of check box which are selected.

attendance.jsp

   
 <%
		   List<UserInfo> studentsList1 = (List<UserInfo>)request.getAttribute("studentList");
		   System.out.println( studentsList1.get(0).getFirstName()+ " " + studentsList1.get(1).getFirstName() );
		   studentsList1.toArray();
		   	for(UserInfo userInfo : studentsList1)
 			{
 	        
 		   %> 		     
 		   <tr  >
 		   <td> <%= userInfo.getFirstName()%>   <%= userInfo.getLastName()%> </td>
 		     
 		   <td> <html:multibox property="p3" value="selPer30" disabled="false" tabindex="0" /> </td>
 		   <td> <html:multibox property="p3" value="selPer31" disabled="false" tabindex="0" /> </td>
 		   <td> <html:multibox property="p3" value="selPer32" disabled="false" tabindex="0" /> </td>
 		   <td> <html:multibox property="p3" value="selPer33" disabled="false" tabindex="0" /> </td>
 		   </tr>
 		   <%} %>
 

AttendanceAction.java

  
public ActionForward updateAttendance(ActionMapping map, ActionForm form,
			HttpServletRequest req, HttpServletResponse res) throws Exception
	{
		AttendanceForm attendanceForm = (AttendanceForm)form;
				
		System.out.println("Length:"+ attendanceForm.getP3().length);
		ArrayList<StringBuffer> list = new ArrayList<StringBuffer>();

		for(int i=0;i<attendanceForm.getP3().length;i++)
		{
		  StringBuffer str = (new StringBuffer(attendanceForm.getP3()[i].toString()));
		    if(attendanceForm.getP3()[i+1].toString()!=null)
		    {
		    	str.append(attendanceForm.getP3()[i+1].toString());
		    }
		    if(attendanceForm.getP3()[i+2].toString()!=null)
		    {
		    	str.append(attendanceForm.getP3()[i+2].toString());
		    }
		   if(attendanceForm.getP3()[i+3].toString()!=null)    //Displays Array Index out of bounds Exception here
		    {
		    	str.append(attendanceForm.getP3()[i+3].toString());
		    }
		     System.out.println("StringBuffer["+i+"]:"+ str);	
		}
		
		for (Iterator<StringBuffer> it = list.iterator(); it.hasNext(); ) 
		{
		    StringBuffer s = it.next();  
		    System.out.println(s);
		}
		
		AttendanceDAO attDAO = new AttendanceDAO();
		Attendance attObj= attendanceForm.getAttObj();
		
		
		attDAO.save(attendanceForm);
		
          return map.findForward("showStudents");
		
	
	}
  

AttendanceForm.java

   
   	public String[] p3 = new String[100];
        
         public String[] getP3() {

		return p3;
	}

	public void setP3(String[] p3) {

		this.p3 = p3;
	}

[Santhosh Puttu]

I did this for one student...
ie displayed first name and last name.... and a multiple check boxes ..
I am able to take checked values for first student.....

For remaining students.... How can I Take checked values of remaining students.