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class A{
some variables;
public void a()throws Excepion1,Exception2{....}
}
class B extends A{
variables...
public void a()throws E2,E3{.....}
}
Qns:
here override of methods occurs or not,ore else wil give
any compilation error or run properly..plz tell me briefly
whts happening with the above codes....
- 4 Answers
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Answer / dipesh
this will throw complie error b'coz u r overirding the
method & u overirdng method cant throw exceptions which is
not being thrown by overirded method hwevr ovrindng method
can throw runtime exceptions
| Is This Answer Correct ? | 10 Yes | 0 No |
Answer / anjan singh
while overriding, you must keep in mind that the exception
being thrown by overriding method(method in subclass)
should not throw a broader exception than what is already
thrown by method in super class. one exception is that, you
can always throw RuntimeException from method in subclass.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / jeevan
It is a good programming practice to have only a sub set of
checked exceptions classes from the throws clause of the
inherited method of the superclass.
Here in the above example E2,E3 exception are not a subset
of the exception classes of the inherited method
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / sunita
Overriding methods cannot change the signature of the
overridden method. but runtime exception r not present in
signature so u can only add the runtime exception in
overriden method.
| Is This Answer Correct ? | 1 Yes | 1 No |
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