Dynamic Linked List In Jsp

[rashmi_ay]

Hello, I am learning java programming language. And while learning it I have come across the creating a dynamic linked list in jsp. I am not able to get the concept behind it. If anyone from you know the details about it, then please explain about it to me. I will be thankful to you.

[MindSpace]

Hey, you can simply make use of the following code for creating dynamic dropdown list. I am not having knowledge of jsp, so you can simply use logic behind it:

function dynamictree($rootempid,$level)
{
$sql="select empid,emp_name
from tbl_name
where deptid=$rootempid
order by emp_name";

$result=mysql_query($sql);

while (list($DBempid,$dbempname)=mysql_fetch_row($result))
{
      $width=($level+1)*24;
 
      if ($width==48)
        $display="    ";
       
      if ($width==72)
        $display="      ";
if ($DBempid==1)
{
$display.="<option value=$DBempid>";
}
else
{
$display.="<option value=$DBempid>";
}
$display.="$dbempname</option>";
echo $display;
dynamictree($DBempid,$level+1);
}
}
?>

<table cellpadding="2" cellspacing="2" border="0" width="width="100%"">
<tr>
<td><select name="">

<? dynamictree(0,0);?>

</select></td>
</tr>
</table>

[Modifier]

Hey, If I want to create a linked list in c, then I will create it as below:

struct testing
{
        char str [40];
        char str1 [40];
        char str2 [100];
        char str3 [6]; 
        char str4 [10];
       
        struct testing *pNext; 
};
struct testing *connect = NULL;

printf ("%s", *(connect + 6) -> num1);

[Katty]

Hello, it depends on you which type of link list to be use. If you want to use the standard Linked list, then you are not able to get the solution for using the arbitrary elements. You need to start the heap and then iterate it to the number of times which you want. But, if you create an array of pointers to the nodes of your list and then you can able to get the elements in that way. This will be useful in the case where you will simply use the pointers list for your list which are not used by the accessing the list, but it is used to show the specific order of the list.

[Praetor]

Hello, just make use of the code below :

struct linklist
{
pre object(instance) for this Type */
linklist *pre;
wchar_tuser[50];
object(instance) for this Type */
linklist *next;
}

[kelfro]

Hello, I have search this on internet but I don't find solution for it, so I think you need to use the books below for getting the solution for it:

• Core Servlets and JSP
• Java Servlet & JSP Cookbook
• Mastering Enterprise JavaBeans Third Edition
• The Professional JSP Book
• Beginning JSP 2: From Novice to Professional