public abstract boolean equals (Object obj)

Overriding: java.lang.Object

Returns true if the argument represents the same element as this, or false otherwise.

obj    the object to be compared with this element

Returns:  true if the specified object represents the same element as this

@apiNote The identity of an element involves implicit state not directly accessible from the element's methods, including state about the presence of unrelated types. Element objects created by different implementations of these interfaces should not be expected to be equal even if "the same" element is being modeled; this is analogous to the inequality of Class objects for the same class file loaded through different class loaders.