Is Throwble a checked Exception

[Simran Dass]

When we give :-

throw new Throwable();

If we do not either handle or declare the exception compilation fails.
So is Throwable a checked exception. What should be the answer to foll question :-


a) Throwable is a checked exception ? ( True or False)

[Christophe Verré]

What is the definition of an unchecked exception ? If you know it, you'll know what type of exception Throwable is. Check the answer in the Java Specification.

[Simran Dass]

The specification says : -


The unchecked exceptions classes are the class RuntimeException and its subclasses, and the class Error and its subclasses. All other exception classes are checked exception classes.


So, this means Throwable is a checked exception

[Ankit Garg]

Simran Dass wrote: So, this means Throwable is a checked exception

Yes that's right. You could've also created a simple program which throws an object of type Throwable and not catch it...

[Neha Daga]

The Throwable class is the superclass of all errors and exceptions in the Java language

So it can be both checked and unchecked.

[Tim McGuire]

So it can be both checked and unchecked.

Hold on a second...
It isn't both checked and unchecked

The unchecked exceptions classes are the class RuntimeException and its subclasses, and the class Error and its subclasses. All other exception classes are checked exception classes.

is Throwable a RuntimeException or one of its subclasses? No
is Throwable an Error or one of Error's subclasses ? No

if you do as Ankit suggested and try to throw an unchecked throwable, it won't compile

[Neha Daga]

Throwable is super class of RuntimeException and Error so it contains them too, thats why when you throw a throwable you can catch it or not as per your wish.
If you dont catch a throwable compiler will not complain which is the case with RuntimeExceptions and Errors.

Throwable is superclass of all Exceptions, so it contains both checked and unchecked exceptions.

[Ankit Garg]

Neha Daga wrote:when you throw a throwable you can catch it or not as per your wish.
If you dont catch a throwable compiler will not complain

Did you try it out??

class ExceptionTry {
	public static void main(String[] args) {
		throw new Throwable();  //error
	}
}

[Harpreet Singh janda]

Yow can't throw a Throwable without catching it. You can't say that it is both checked and unchecked exceptions

[Neha Daga]

sorry, I didn't try it and gave a wrong answer.
And i was a bit confused in my thoughts and I guess I wrote the other way round.

you guys are correct.

[Simran Dass]

Thanks

I had already tried it with code before posting the question but was
confused (same confusion as Neha's). My question contains -

throw new Throwable();

If we do not either handle or declare the exception compilation fails.