manohar reddy

If we want to get the session in a servlet, only if a valid session is pre-existing, how should we get the session.

[ UD: added meaningful subject line ]
[ November 23, 2007: Message edited by: Ulf Dittmer ]

If we want to get the session in a servlet, only if a valid session is pre-existing, how should we get the session.

If a jsp is marked as �isThreadSafe= true� does that mean

Multiple threads can access the JSP simultaneously

(Or)

Only one thread can access the JSP anytime

If we have two methods with the same name and same number and type of parameters with different return types. Which of the methods takes the precedence?

If the return type of a method is �Object�, can we return an ArrayList from that method.


If the return type of a method is ArrayList, can we return an Object of type Object class from that method.

how to instatiate abstraction

what are the services of JVM

Can we write multiple classes in a single .java file?

If yes then, can all of them be public classes

If we have multiple classes in one .java file, what should be the name of the java file?

What are the differences between an �Object Array� and an �ArrayList�

please tell me the answer

Can we write multiple classes in a single .java file?

If yes then, can all of them be public classes

If we have multiple classes in one .java file, what should be the name of the java file?

[ changed the subject to something meaningful - Jim ]
[ November 19, 2007: Message edited by: Jim Yingst ]

What are the differences between an �Object Array� and an �ArrayList�