Answer / g.arun

Array is not growable and Arraylist is growable

We can access elements in a Arraylist randomly and in
LinkedList we cannot(means for accessing an element we have
traverse from first elemet in Linkedlist.

Answer / madhu sudana rao

first one:
array is fixed length,arraylist is growing array(means
they have no fixed length , if u add more the size
arraylist size incress and vise versa)
seond one:
if add and remove the elements in the middle takes more
time by using arrylist in that time use linkedlist
arrylist is good for retiveing the elements in specific
position
arraylist is faster than linkedlist for random accesing
of elemnets

Answer / satya

Every body missed out one main difference i.e Array used to
store primitive data(of type int,char etc.,) values where
as Arraylist is user to store objects.

Answer / pankaj gupta

in array the size of array is fixed but in case of arraylist
we can add element dynamicaly.
in linkedlist we deal with pointers but their is no pointers
in case of arraylist(eg.c#).

Answer / suresh

we can't change array size diyamically.

Answer / ram

array contain a similar data type and array size is fixed i.e
dynamically its size can't be changed.
but arraylist can store more then one data type and its size
can be changed dynamically.
one major difference is that,array used to store primitive
data type(i.e. int,char etc) while arraylist is used to
store objects.

Answer / anuj

array can,t have count and capacity method, but in array list have count and capacity method,

Answer / sureshkumar

Using array we can stored value by using index.

Using arraylist we can stored value by using key.so we can
retrive the values by using key and we can remove the value
from arraylist by using key.So the array overflow problem
wont happen.

Do extraneous variables affect validity?

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Can you change array size in java?

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What is the purpose of java?

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