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Author

Exception handling an Polymorphism

Thomas Markl
Ranch Hand

Joined: Mar 08, 2001
Posts: 192
What is wrong about this program?
Thank you for answers.
Thomas

> cd C:\jdk1.3\bin
> javac Fredtest1.java

[Edited to preserve formatting -DS]
[ June 10, 2002: Message edited by: Dirk Schreckmann ]
Ilja Preuss
author
Sheriff

Joined: Jul 11, 2001
Posts: 14112
Originally posted by Thomas Markl:
What is wrong about this program?
[...]


I think youself gave the answer: fred() in base does not throw SomeOtherException, therefore fred() in derived is not allowed to.


The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus
Andrew Spruce
Greenhorn

Joined: Feb 27, 2001
Posts: 21
I think you could either :
1) Add throws FredException to fred() in derived.
2) Have SomeOtherException extend FredException.
e.g.
 
 
subject: Exception handling an Polymorphism