Which class is extended by all other classes?

Hi,

The object class of Java is extended by all other classes.

For more about abject class read this article link:

http://www.roseindia.net/java/beginners/ObjectClass.shtml

Thanks,

Hi friend,

In a class hierarchy a child/sub class can extend any of its public, non-final parent/base class. In Java java.lang.Object class is a root class of all other classes so, the java.lang.Object class can be extended by all other classes.