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interface
Hi all,
This question is from a Mock Test.
Which of the following is true ?
a. Subclasses must define all the methods that the superclass defines.
b. A class must define all the methods in the interface that it says it implements.
c. A class can't override the super class's constructor.
d. It is possible for 2 classes to be superclass of each other.
e. An interface can implement multiple interfaces.
My answers were ....
a. False.
b. True // Note
c. True
d. False never. ClassCircularityError occurs
e. False it can only extend multiple interface

But the test says the right answer is only c.
I think this is true
b. A class must define all the methods in the interface that it says it implements.

Aruna.
[This message has been edited by Aru (edited August 31, 2000).]
unless it is declared as abstract...
Hi, Aruna, no, the only answer is C.
Answer b(A class must define all the methods in the interface that it says it implements) is wrong because a class does not implement all the methods in an interface. In this case this class is an abstract class, must be declared as abastract.
With regards!
Frank
Thx , Yes..unless it is abstract.
Aruna
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