HashSet.add

Adds the specified element to this set if it is not already present. More formally, adds the specified element <tt>e</tt> to this set if this set contains no element <tt>e2</tt> such that <tt>(e is null&nbsp;?&nbsp;e2 is null&nbsp;:&nbsp;e.equals(e2))</tt>. If this set already contains the element, the call leaves the set unchanged and returns <tt>false</tt>.

@param e element to be added to this set @return <tt>true</tt> if this set did not already contain the specified element

class HashSet(E)
override
bool
add
(
E e
)

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