Tuesday, 27 May 2014

ArrayList

ArrayList is resizable Array implementation in Java. This class provides implementation for all the methods in List interface. This class is equivalent to Vector, the only difference is vector is synchronized, where as ArrayList not.

Each ArrayList instance has a capacity, as elements are added to an ArrayList, its capacity grows automatically. The capacity is the size of the array used to store the elements in the list. It is always at least as large as the list size.

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