Vector is thread-safe, but the performance is lower than the ArrayList.
ArrayList, Vector is the main difference between the following points:
(1): Vector is thread-safe, there are a lot of synchronized source code can be seen, rather than ArrayList. Vector and ArrayList result in efficiency can not be compared;
(2): ArrayList and Vector are continuous linear memory space, when the storage space is insufficient, increasing the ArrayList original default 50%, Vector is increased to twice the original default;
(3): Vector can set capacityIncrement, but not ArrayList, from the literal meaning is the capacity capacity, Increment increased capacity growth parameters.
