Difference between Iterator,ListIterator and Enumeratio?

Iterator:It is an interface, which can be used to iterate objects in forward Direction.
     Following are the methods of Iterator,
     1.)public boolean hasNext(){};
      2.)public object next(){};
       3.)public void remove(){};

ListIterator:It is an interface ,which can be used to iterate objects in forward direction as well as in Backward direction.
          Following are the methods of ListIterator,
        1.)public boolean hasNext(){};
      2.)public object next(){};
       3.)public void remove(){};
       4.)public boolean hasPerivous(){};
       5.)public object perivous(){};

Enumeration: It is an interface which can be used to iterate objects in forward direction.But it doesn't havr a method to remove object.
        Following are the methods of Enumeration,
      1.)public boolean hasMoreElement(){};
       2.)public object nextElement(){};

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