Java is more dynamic language as C or C++. It was designed so that it can adapt any evolution into environment.

While the Java Compiler is strict in its compile-time static checking, the language and run-time system are 

dynamic in their linking stages.

Classes are linked only as needed. New code modules can be linked in on demand 

from a variety of sources, even from sources across a network.

In the case of the HotJava Browser and similar 

applications, interactive executable code can be loaded from anywhere, which enables transparent updating 

of applications.