Customized Exception是选中还是未选中的Exception？

Question

Whether the Customized Exception is Checked or Unchecked Exception? How?

Answer 1

If you do like this:

public class CustomException extends Exception

then your CustomException is checked exception

If you do like this:

public class CustomException extends RuntimeException

then your CustomException is unchecked exception

Answer 2

If an exception inherits from RuntimeException then it is unchecked. Otherwise it is checked.

Answer 3

It depends on what it inherits. If your custom exception is a subclass of RuntimeException then it is unchecked exception.

And if your custom exception extends Exception class then it is checked exception.

See the Differences between Runtime/Checked/Unchecked/Error/Exception for more details

Answer 4

depends on inheritance. if it inherits from RuntimeException it is unchecked. Otherwise it is checked