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what is the difference between ArrayList and Vector
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Answer Posted / janardhan
ArrayList contains all methods are non-synchronized methods.
ArrayList by default not threadsafe.
ArrayList allows duplicate objects.
ArrayList default size is 16.if you want to increase size
use this formula:-- defaultsize * 3/2 + 1.
we can make araylist as synchronised:--
List l=Collections.SynchronizedList(new arrayList());
Arraylist is best choice for retrival operation and worest
choice for insert operation.
Vector:--
Vector is same like arraylist, but we have only one
difference is vector contains all synchronized methods.
Vector is best choice for retrival operation and worest
choice for insert operation.
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