Answer / shweta dhankani

Above answer is wrong..
Infact it is opposite..
Vector methods are synchronized and are thread safe.
Whereas Arraylist methods are not synchronized and thread safe.

Answer / aravind

1. Arraylist is not synchronized while vector is.
2. Arraylist has no default size while vector has a
default size of 10.
3. Arraylist don't define any increment size while vector
does.
4. Arraylist can be seen directly without any iterator
while vector requires an iterator to display all it's
content. (not very sure).

Answer / umanath

Vector and ArrayList are very similar. Both of them
represent a 'growable array',
ArrayList it's part of the Java Collection Framework, and
has been added with version 1.2, Vector it's an object that
is present since the first version of the JDK.
The main difference is that Vector it's a synchronized
object, while ArrayList it's not.
While the iterator that are returned by both classes are
fail-fast (they cleanly thrown a
ConcurrentModificationException when the original object has
been modified), the Enumeration returned by Vector are not.

Unless you have strong reason to use a Vector, the
suggestion is to use the ArrayList.

Answer / mari

vector intriduced in 1.0 version thats why we called vector
is a legecy.and AL(1.2) is non legecy

Answer / srikanth reddy

Vector and ArrayList are very similar. Both of them
represent a 'growable array'

arraylist class is added in java/j2ee where has vector class
is before to jdk1.4 they just taken as it as in jdk1.4

the main difference is that Vector it's a synchronized
object, while ArrayList it's not.

for accesing elements of arraylist we can use iterator

for accesing elements of vectorlist we can use both iterator
and enumeraation

arraylist is faster in acessing of elements compared to
vector class

Answer / rajesh_mari24

arraylist methods are synchronized.so all methods are thread
safe.performance is very low.it introduced in 1.2 ver
vector methods are non synchronized.so all methods are not
thread safe.performance is high.it introduced in 1.0 ver

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