Copied examples of many javabeans sample programs but none works for me :(

Question

y is it that my javabeans in jsp always don't works
always say blah.class not found...
<jsp:useBean id="user" class="UserData" Scope="session">
Do i need to do anything to the "UserData" class first?
public class UserData {
String username;
String email;
int age;
public void setUsername( String value )
username = value;
public void setEmail( String value )
email = value;
public void setAge( int value )
age = value;
public String getUsername() { return username; }
public String getEmail() { return email; }
public int getAge() { return age; }
this is the coding for the java file
Do i need to put the .class file in any folder or i set my classpath wrongly?

Answer 1

how do i pack my classes in packages?
hmm, i'm using notepad to type to coding. is there any ide for jsp n javabeands?