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January 2001



This page contains an archived post to the Java Answers Forum made prior to February 25, 2002. If you wish to participate in discussions, please visit the new Artima Forums.


About "Advantage of Up Casting"

Posted by Muneeb Mukhtar on January 08, 2001 at 3:54 PM

To Beneficient Man : Who Answers Me

Name: Muneeb Mukhtar
Age: 24
Sex: Male

sir I am student of MCS(Masters in Computer Sciences) in AL-Khair University of Pakistan.I have completed half of MCS and now i am studing JAVA in third
Semester.About C-language is that i have good concepts(THANKS GOD).

Now i am found of JAVA to crazy extent.

Sir since i have read the book "THINKING IN JAVA" after reading preface of book at, i felt that if i could't purchase your book then i may left with great deficiency as Electronic Book is not easy to read.
So i purchased the book and i have read eight chapters.

All concepts are clear But:

Only one concept of "UP CASTING" is teasing me too much and now i am fed up with that as all other concepts for example inheritance,interface is relating to "UP CASTING".

Sir Problem is that I have understood how "up casting" is done but i could not understood what is the "ADVANTAGE" of "up casting".

I would be thankful to you to the crazy extent if You reply me as soon as possible and i would think that you have soft corner for Pakistanies.
please mail me at

With a lot compliments.,

Your's Well Wisher
Thousands of meters away waiting for your reply anaxiously.



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