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Java Programming - Exceptions - Discussion

Discussion Forum : Exceptions - Pointing out the correct statements (Q.No. 5)
Exceptions
5.
Which statement is true?
catch(X x) can catch subclasses of X where X is a subclass of Exception.
The Error class is a RuntimeException.
Any statement that can throw an Error must be enclosed in a try block.
Any statement that can throw an Exception must be enclosed in a try block.
Answer: Option
Explanation:

Option A is correct. If the class specified in the catch clause does have subclasses, any exception object that subclasses the specified class will be caught as well.

Option B is wrong. The error class is a subclass of Throwable and not Runtime Exception.

Option C is wrong. You do not catch this class of error.

Option D is wrong. An exception can be thrown to the next method higher up the call stack.

Discussion:
6 comments Page 1 of 1.
Tamil said:   4 years ago
In a catch block;

For example catch (ArithmeticException e),
In the question catch(X x),
Match these two lines.
ArithmeticException=X.
e=x.

So, X(ArithmeticException) is the subclass of Exception.

Correct me, if I'm wrong.
Pratik Rajan Kale said:   6 years ago
Can anyone explain A option with good example?
Sumalya said:   8 years ago
May anybody explain the option A? please.
Divyang said:   9 years ago
For example, if the method is called in the Main(), no need for try catch inside the specified method.

That's the explanation for option D.
Priyanshu said:   9 years ago
Can anyone please help me for explaining the option D?

I would be very grateful for your help.
Tamás Kifor said:   1 decade ago
It is possible that X is not subclass of Exception but subclass of Throwable.
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