exception - Where does Java language define if a Throwable is checked or not? -

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both exception , runtimeexception inherits throwable , not implement interface tell whether checkd or not.

where specified exception checked , runtimeexception unchecked? hardwired in language or jvm?

it's defined in java language specification section 11.1.1.

throwable , subclasses are, collectively, exception classes.

exception superclass of exceptions ordinary programs may wish recover.

error superclass of exceptions ordinary programs not ordinarily expected recover.

error , subclasses are, collectively, error classes.

[...]

the class runtimeexception direct subclass of exception. runtimeexception superclass of exceptions may thrown many reasons during expression evaluation, recovery may still possible.

runtimeexception , subclasses are, collectively, run-time exception classes.

the unchecked exception classes run-time exception classes , error classes.

the checked exception classes exception classes other unchecked exception classes. is, checked exception classes subclasses of throwable other runtimeexception , subclasses , error , subclasses.


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