=== 2.2.2.4 Classes ===

Most of the classes in the ****java.lang**** package are not supported on the Java Card platform. The following classes from ****java.lang**** are supported on the card in a limited form. 

== Object ==

Java Card API classes descend from **java.lang.**Object****, just as in the Java programming language. Most of the methods of **Object** are not available in the Java Card API, but the class itself exists to provide a root for the class hierarchy. 

== Throwable ==

Class ****Throwable**** and its subclasses are supported. Most of the methods of ****Throwable**** are not available in the Java Card API, but the class itself exists to provide a common ancestor for all exceptions.