class A{ some variables; public void a()throws Excepion1,Exception2{

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....

Question Posted / saumyaranjandash

4 Answers
8549 Views
Quinnox, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

class A{ some variables; public void a()throws Excepion1,Exception2{....} } class B ex..

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

class A{ some variables; public void a()throws Excepion1,Exception2{....} } class B ex..

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

class A{ some variables; public void a()throws Excepion1,Exception2{....} } class B ex..

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

class A{ some variables; public void a()throws Excepion1,Exception2{....} } class B ex..

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

Post New Answer