Which four can be thrown using the throw statement?
1.Error
2.Event
3.Object
4.Throwable
5.Exception
6.RuntimeException
Answer: C
The (1), (4), (5) and (6) are the only four that can be thrown.
An Error is a subclass of Throwable that indicates serious problems that a reasonable application should not try to catch.
The Throwable class is the superclass of all errors and exceptions in the Java language.
The class Exception and its subclasses are a form of Throwable that indicates conditions that a reasonable application might want to catch (checked exceptions)
RuntimeException is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.