Answer Posted / ranjana tyagi

In An array We make collection of same type of data.But in
hash table we can collect different type of objects.
2.In array we can access the element using index.we have to
access element one by one.If we do'nt remember index then
we cant acess the element.On the other hand in hash table
we can acess the element by using key.Also in hash table we
can take the key of the element a string also.

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