JSP file couldn't recognized JavaBeans

The NumColDate.jsp file uses the bean MyCalendar.java. But when I try to access the bean, I got an error "Undefined variable or class mybean"
Here are my files...
MyCalendar.java
----------------
package mybeans;
import java.util.*;
public class MyCalendar{
Calendar c;
int year,month,day;
public MyCalendar(){
c=Calendar.getInstance();
}
public int getYear(){
year=c.get(Calendar.YEAR);
return year;
}
public int getMonth(){
month=c.get(Calendar.MONTH)+1;
return month;
}
public int getDay(){
day=c.get(Calendar.DAY_OF_MONTH);
return day;
}
}

NumColDate.jsp
---------------
<html>
<head>
<title>
Number, Colors and Date
</title>
</head>

<body>
<%@ page language="java" %>
<jsp:usebean id="datebean" scope="page" class="mybeans.MyCalendar" />
<center>
DATE
year: <%= datebean.getYear() %>
month: <%= datebean.getMonth() %>
day: <%= datebean.getDay() %>
</center>
<br>
<% for (int i=0;i<26;++i){ %>
<%= i %>
<% } %>
<br>
</body>
</html>

Directory Structure
--------------------
1. Tomcat/webapps/JSP/NumColDate.jsp
2. Tomcat/webapps/JSP/web-inf/classes/mybeans/ NumColDate.jsp

Importing mybeans.MyCalendar in your page directive might fix this.
Bill