why do we typecast ActionForm into out plain java bean class in Action class?

Categories >> Software >> Java Related >> Java J2EE >> Struts
Suggest New Category

why do we typecast ActionForm into out plain java bean
class in Action class?

Question Posted / bandiki.raghava

5 Answers
9298 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

why do we typecast ActionForm into out plain java bean class in Action class?..

Answer / jagadeesh b.n

Bcoz as u all know, casting are of 2 types Upcast(implicit)
and Downcast(Explicit)in core java.....Upcasting means
converting lower datatype(int) to higher datatype(long) and
Downcast means its a viceversa of upcast...(long to int)...

As u know in struts ActionForm is a superclass where as ur
Java bean program is a simple class with private fields and
set/get methods for conversion of superclass to sublclass
we use typecasting in struts...

Is This Answer Correct ?

5 Yes

1 No

why do we typecast ActionForm into out plain java bean class in Action class?..

Answer / ravikiran(aptech mumbai)

Because The methods what we declared in a bean are not of
type ActionForm class type that's why we are type casting
and calling our getters and setters

Is This Answer Correct ?

3 Yes

2 No

why do we typecast ActionForm into out plain java bean class in Action class?..

Answer / santhoshkumar.shaik

ok here our our form data in ActionForm
that's y u shoud do down Type Cast
othere wise u can n't use

Is This Answer Correct ?

0 Yes

2 No

why do we typecast ActionForm into out plain java bean class in Action class?..

Answer / balaji

Bcoz this will tell that our form bean is an action form
bean which will refer to which action it is referred from
strutsconfig.xml file

10x
balaji

Is This Answer Correct ?

1 Yes

4 No

why do we typecast ActionForm into out plain java bean class in Action class?..

Answer / johndoe

Acctually not realy thinking you should ask that, i mean
well ask, the answer is: to use it's methods.

But to understand it i recomend reading something about
polymorphy which explains why we're casting the action-
form, hope i understood right.

Regards
Jan

Is This Answer Correct ?

2 Yes

7 No

Post New Answer