Can a class have two superclasses at the same time?

[phpuser123]

I have a class Journey which I want to make a superclass and another class plannedjourney.
The plannedjourney class extends JFrame since it contains forms..However I also want this class to extends Journey..

Is there a possible way to do this?

[Dheeraj Joshi]

You can use interfaces.

Regards
Dheeraj Joshi

[Dheeraj Joshi]

Or you can also use inner classes. I guess if you do not want interfaces better to use inner classes.

Regards
Dheeraj Joshi

[horace1]

See the following discussion "Why not multiple inheritance?" in Javaworld

http://www.javaworld.com/javaqa/2002-07/02-qa-0719-multinheritance.html