JSP Enumeration
Enumeration, a concept of core java is an object that implements the Enumeration
interface generate a series of elements, one at a time. Each call to the nextElement
method ( ) will return the successive elements of the series.
Understand with Example
In this section we are going to display the days of week using the
Enumeration in jsp. An Enumeration object generates a series of elements, one at
a time which is used for passing through a collection. You can see in the given
example that we have used the method add() of class Vector in order to
append the days name to the end of this Vector.
v.elements()-The method returns an enumeration of the elements of the
vector.
e.hasMoreElements() - This method returns true, until the last object
has been returned by nextElement().
e.nextElement()- This method returns the next object in the collection.
Here is the code of enumerations.jsp
<%@ page import="java.util.*"%>
<html>
<body>
<%
Enumeration e;
Vector v = new Vector();
v.add("Sunday");
v.add("Monday");
v.add("Tuesday");
v.add("Wednesday");
v.add("Thursday");
v.add("Friday");
v.add("Saturday");
out.println("<b>Days of Week:</b>");
e = v.elements();
while (e.hasMoreElements())
out.println(e.nextElement());
%>
</body>
</html> |
Output will be displayed as:
Download Source Code:
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