Java Class Loaders How they Work

An internal class loader (part of the JVM) loads the Java API classes when the VM starts up
In 1.1 internal class loader also loads all CLASSPATH classes
In 1.2 an instance of URLClassLoader loads classes from CLASSPATH
Browsers load classes for the applets from the applet’s CODEBASE using URL class

An internal class loader (part of the JVM) loads the Java API classes when the VM starts up