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somasekhar
arraylist vs vector
4 Answer(s)      6 years and 8 months ago
Posted in : Java Beginners


hi, i want to know what is the difference between arraylist and vector in case of performance. in what cases we should go for arraylist and in what case we should go for vector. is there any


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March 30, 2008 at 9:43 AM


array list
1.allow null values
2.non-ordered list
3.allow duplicate values
Vector
1.not allow null
2.ordered
3.not allow duplicate values
(synchronised)


June 20, 2012 at 11:49 PM


Vector

  • Synchronized
  • slower as compare to arraylist
  • mostly use with single threading
  • not allow null
  • no duplicate

Array List

  • Non-Synchronized
  • faster
  • multi threading
  • allow null value
  • allow duplicate -Suthar Jalaram


September 26, 2012 at 10:33 AM


Now a days vectorlists are not being used only the array lists are being used. vector list are single thread so the execution time will be more than the array list bcoz it will have locking of thread while that thread is being executed.. --Mahesh.p



September 27, 2012 at 10:13 AM


One more difference between Array List vs Vector is that later is a legacy class and initially not part of Collection API



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