Muruhanantham .C

• Sep 26th, 2005

 

ArrayList is faster than Vector, because ArrayList is not synchronized. Synchronization will reduce the performance of Vector.

Devidas Sonawane

• Oct 21st, 2005

 

Syncronisation Mechanism is more important in Vector class and b'caz of that speed of Vector reduces and Arraylist is not Syncronized and hence faster.

sujatham

 Profile Answers by sujatham Questions by sujatham

• Jul 31st, 2007

 

Vector have synchronized methods.
but,  ArrayList  doesn't have synchronized methods.So it is faster than ArrayList.

sampra

 Profile Answers by sampra 

• Feb 15th, 2008

 

AL is not synco by def where as vector is

meSubhadip

 Profile Answers by meSubhadip Questions by meSubhadip

• Jul 21st, 2009

 

Vector is synchronized so JVM needs to take extra care to acquire and release locks to make vector thread safe. But ArrayList is not synchronized so JVM doesn't need this extra overhead.
That's why arraylist is faster than vector.