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Vectors  RSS feed

 
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What is the effect of adding the sixth element to a vector created in the following manner:
new Vector(5, 10);
A) An IndexOutOfBounds exception is raised.
B) The vector grows in size to a capacity of 10 elements
C) The vector grows in size to a capacity of 15 elements
D) Nothing, the vector will have grown when the fifth element was added
The given answer is C. But according to the JLS:
public Vector(int initialCapacity, int capacityIncrement)
Constructs an empty vector with the specified initial capacity and capacity increment.
initialCapacity - the initial capacity of the vector.
capacityIncrement - the amount by which the capacity is increased when the vector overflows.

So shouldn't the answer be B.???
Thanks in advance....

 
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The answer is "c" correct because
capacity increment+initial increment= total size of the vector
hence 5+10=15
so when overflows its capacity is 15.
I think it is clear
- regards
mohan
 
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hi shafeeque,
u ur self have answered ur question.
public Vector(int initialCapacity, int capacityIncrement)
Constructs an empty vector with the specified initial capacity and capacity increment.
initialCapacity - the initial capacity of the vector.
capacityIncrement - the amount by which the capacity is increased when the vector overflows.

--------------------------------------------------
in this case
initial capacity = 5
adding 6th element ------> overflow
so according to JLS increase the capacity by 10.
hence new capacity = 5+ 10 = 15
----------------------------------------------------
& that's why C is the correct answer
regards
deekasha
Thanks in advance....
[/B]
 
It is sorta covered in the JavaRanch Style Guide.
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