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|java.lang core run-time classes|| page 3 of 11|
The core run-time classes for the
java.lang package are:
Class -- Represents classes and interfaces in a running Java application.
Object -- As in J2SE,
Object is the base class of all Java objects.
Runtime -- Provides a way for a Java application to interact with the run-time environment in which it is running.
System -- Provides several static helper methods, as with J2SE.
Thread -- Defines a thread of execution for a Java program.
Throwable -- The superclass of all errors and exceptions in the Java language.