| Method Summary |
|
| public boolean | add(Object o)
Adds the specified element to this set if it is not already present.
Parameters:
o - element to be added to this set. |
| public void | add(int index, Object o)
Adds the specified element to this set if it is not already present, at the specified index. |
| public boolean | addAll(Collection c)
Adds all of the elements in the specified collection to this set if they're not already present.
Parameters:
c - collection whose elements are to be added to this set. |
| public void | clear()
Removes all of the elements from this set. |
| public Object | clone()
Returns a clone of the Set.
throws:
CloneNotSupportedException - if cloning is not supported. |
| public boolean | contains(Object o)
Returns true if this set contains the specified element.
Parameters:
o - element whose presence in this set is to be tested. |
| public boolean | containsAll(Collection c)
Returns true if this set contains all of the elements of the specified collection.
Parameters:
c - collection to be checked for containment in this set. |
| public boolean | equals(Object o)
Compares the specified object with this set for equality.
Parameters:
o - Object to be compared for equality with this set. |
| public Object | get(int index)
Returns the element from the specified position.
Parameters:
index - The position from which the element is to be retrieved. |
| public int | hashCode()
Returns the hash code value for this set. |
| public int | indexOf(Object o)
Returns the index of the element in this set.
Parameters:
o - The element whose index is to be found. |
| public boolean | isEmpty()
Returns true if this set contains no elements. |
| public Iterator | iterator()
Returns an iterator over the elements in this set. |
| public boolean | remove(Object o)
Removes the specified element from this set if it is present.
Parameters:
o - object to be removed from this set, if present. |
| public Object | remove(int index)
Remove the element from the specified position.
Parameters:
index - The position from which the element is to be removed. |
| public boolean | removeAll(Collection c)
Removes from this set all of its elements that are contained in the specified collection.
Parameters:
c - collection that defines which elements will be removed from this set. |
| public boolean | retainAll(Collection c)
Retains only the elements in this set that are contained in the specified collection.
Parameters:
c - collection that defines which elements this set will retain. |
| public int | size()
Returns the number of elements in this set. |
| public Object[] | toArray()
Returns an array containing all of the elements in this set. |
| public Object[] | toArray(Object[] a)
Returns an array containing all of the elements in this set; the runtime type of the returned array is that of the specified array.
Parameters:
a - the array into which the elements of this set are to be stored, if it is big enough; otherwise, a new array of the same runtime type is allocated for this purpose. |
