• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Liutauras Vilda
  • Bear Bibeault
  • Tim Cooke
  • Junilu Lacar
Sheriffs:
  • Paul Clapham
  • Devaka Cooray
  • Knute Snortum
Saloon Keepers:
  • Ron McLeod
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • Frits Walraven
Bartenders:
  • Carey Brown
  • salvin francis
  • Claude Moore

Vectors  RSS feed

 
Ranch Hand
Posts: 68
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
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....

 
Ranch Hand
Posts: 36
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
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
 
Ranch Hand
Posts: 396
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
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]
 
You get good luck from rubbing the belly of a tiny ad:
Create Edit Print & Convert PDF Using Free API with Java
https://coderanch.com/wiki/703735/Create-Convert-PDF-Free-Spire
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!