creating java objects at runtime

[gaya3]

Hi all,
only during runtime , i know the class for which i need to create the object.How to generate objects for different classes at run time??
Please do needfull..


-Hamsa

[dmjpro]

Hi all,
only during runtime , i know the class for which i need to create the object.How to generate objects for different classes at run time??
Please do needfull..


-Hamsa

Have a look "Class" class in Java.

Debasis Jana

[gaya3]

Have a look "Class" class in Java.

Debasis Jana

Hi dmjpro....
Thank u....I tried with following
Class CN = Class.forName(" ClassName");
Object o = CN.newInstance( );
For that i m getting InstantiationEx ception...How to resolve??

-Hamsa

[dmjpro]

Hi dmjpro....
Thank u....I tried with following
Class CN = Class.forName(" ClassName");
Object o = CN.newInstance( );
For that i m getting InstantiationEx ception...How to resolve??

-Hamsa

May be you have no default "Constructo r" or you have that "Constructo r" as "private" or "protected"
Have a through look at the "API".
Actually "Why this Exception thrown" !
Also having look at "Constructo r" and "Method" classes.
This will help you to resolve that problem with that particular "class".

Debasis Jana

[r035198x]

Hi all,
only during runtime , i know the class for which i need to create the object.How to generate objects for different classes at run time??
Please do needfull..


-Hamsa

[CODE=java]ClassName object = new ClassName();[/CODE] creates an object from a class called ClassName.

[gaya3]

Have a look "Class" class in Java.

Debasis Jana

Hi dmjpro,
Thank u...
could u please clear me following doubt...

Class c1 = Class.forName(" x1.x2.x3.servic e.DropdownServi ce");
when i print "c1" its printing as
" interface x1.x2.x3.servic e.DropdownServi ce"

but i need "class" for that DropdownService ... what to do??
please do needfull...


-Hamsa

[dmjpro]

Hi dmjpro,
Thank u...
could u please clear me following doubt...

Class c1 = Class.forName(" x1.x2.x3.servic e.DropdownServi ce");
when i print "c1" its printing as
" interface x1.x2.x3.servic e.DropdownServi ce"

but i need "class" for that DropdownService ... what to do??
please do needfull...


-Hamsa

You want the implemented Classes?

Debasis Jana