Abstract Classes

[Swati Singhal]

hi,
I am new to this forum..so may ask silly questions...
I am a lil confused abt the answer of the following questions :

  
Which is a valid definition of a class that cannot be instantiated:
a. Class Ghost{
     abstract void haunt();
   }
b. abstract class Ghost{
      void haunt();
   }
c. abstract class Ghost{
      void haunt(){};
   }
d. abstract Ghost{
       abstract void haunt();
   }

[Sindhur Sat]

The answer is C
not a: one of the methods is abstract, the whole class has to be abstract and Class is not a keyword in java its actually a class. I mean Class is a class
not b: non abstract methods must have bodies.
not d: class keyword required
Sindhur.

[Swati Singhal]

Thanks Sindhur, i was actually confused between options b & c...

[Swati Singhal]

Sindhur, but a non abstract method must have a method body... So what makes c the correct option... still a bit confused.

[Swati Singhal]

Sorry ppl, i got the answer now... Sorry for the real stupid questions...