Creating an object (JSP forum at Coderanch)

Post by: Zoram Paul , Ranch Hand

Jul 12, 2007 01:50:00

Hello folks!

Can anyone tell me the difference between creating objects like

Test7 t1=(Test7)Class.forName("Test7").newInstance();
Test7 t2=(Test7)Class.forName("Test7").newInstance();

and

Test7 t1 = new Test7();
Test7 t2 = new Test7();

When and where shall should i use them?

Thank you.

Post by: Rahul Bhattacharjee , Ranch Hand

Jul 12, 2007 02:53:00

Hi Zoram,

I do not think this question is anyway related to JSP.Please choose forum properly before posting.

Coming to the question , the first one uses reflection to create objects.

Its useful in certain conditions where at runtime you need to decide which object to create according to some parameters.In that case you can make well use of reflection to create object of desired type.

Post by: Zoram Paul , Ranch Hand

Jul 12, 2007 05:32:00

Thank you Rahul,

My doubts are quiet cleared now.
Did you mean dynamic creation of objects?.

Post by: Rahul Bhattacharjee , Ranch Hand

Jul 12, 2007 05:44:00

Originally posted by Zoram Paul:
Did you mean dynamic creation of objects?.

The parameter to forName can be decided at runtime for creation of different object.