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Why null null?

 
Greenhorn
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Hi, I got this question in to my MasterExam i am not getting why the answer is Null and null
 
Sheriff
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s is always null. What do you expect it to be ?
 
Sandeep Sachan
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I am bit confused into this perticular code


please elaborate it in little deep, i ma not getting the part which is there in to main method.
 
Christophe Verré
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Ranch Hand
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ok!!
public static void main(String [] args)
{
Mineral [] ma = {new Mineral(), new Gem()};

for(Object o : ma)
getWeight((Mineral)o);
}

here Mineral is the Base class,ma is the reference to the class Mineral
you will notice at right side new Mineral,new Gem......now here it is instantiated by writing "new" ...."so ma becomes the object".

Later enhanced for loop is used,where Object o is assigned object ma(actualy value),than getweight method is called.

i hope it helps you to atleast some extent.
 
Ranch Hand
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Originally posted by Sandeep Sachan:
[QB]Hi, I got this question in to my MasterExam i am not getting why the answer is Null and null

Sorry budy,but answer is null null , you have capitalized N in first one

 
Sandeep Sachan
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Thanks ranchars,
 
Ranch Hand
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ma is the reference to the class Mineral

[ June 25, 2007: Message edited by: prateek urmaliya ]
 
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