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Stack extends Vector !

 
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Hi all,
The java.util.Stack extends the Vector class. But for Stack, one should be able to insert or retrive the value from only one side i.e at the top of the stack. But since Stack extends Vector, we can use the inherited get(int index) method to access value other than the top of the stack value. It defeats the purpose of Stack, right? Then why does Stack extends Vector. Any explaination ?? Thanks in advance.

Ramdas
 
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The Stack class represents a last-in-first-out (LIFO) stack of objects. It extends class Vector with five operations that allow a vector to be treated as a stack. The usual push and pop operations are provided, as well as a method to peek at the top item on the stack, a method to test for whether the stack is empty, and a method to search the stack for an item and discover how far it is from the top.
 
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