File	Doc	Category	Size	Date	Package
Set.java	API Doc	Android 1.5 API	7128	Wed May 06 22:41:04 BST 2009	java.util

Set

Fields Summary

Constructors Summary

Methods Summary
public boolean	add(E object) Adds the specified object to this set. The set is not modified if it already contains the object. param object the object to add. return {@code true} if this set is modified, {@code false} otherwise. throws UnsupportedOperationException when adding to this set is not supported. throws ClassCastException when the class of the object is inappropriate for this set. throws IllegalArgumentException when the object cannot be added to this set. since Android 1.0
public boolean	addAll(java.util.Collection collection) Adds the objects in the specified collection which do not exist yet in this set. param collection the collection of objects. return {@code true} if this set is modified, {@code false} otherwise. throws UnsupportedOperationException when adding to this set is not supported. throws ClassCastException when the class of an object is inappropriate for this set. throws IllegalArgumentException when an object cannot be added to this set. since Android 1.0
public void	clear() Removes all elements from this set, leaving it empty. throws UnsupportedOperationException when removing from this set is not supported. see #isEmpty see #size since Android 1.0
public boolean	contains(java.lang.Object object) Searches this set for the specified object. param object the object to search for. return {@code true} if object is an element of this set, {@code false} otherwise. since Android 1.0
public boolean	containsAll(java.util.Collection collection) Searches this set for all objects in the specified collection. param collection the collection of objects. return {@code true} if all objects in the specified collection are elements of this set, {@code false} otherwise. since Android 1.0
public boolean	equals(java.lang.Object object) Compares the specified object to this set, and returns true if they represent the same object using a class specific comparison. Equality for a set means that both sets have the same size and the same elements. param object the object to compare with this object. return boolean {@code true} if the object is the same as this object, and {@code false} if it is different from this object. see #hashCode since Android 1.0
public int	hashCode() Returns the hash code for this set. Two set which are equal must return the same value. return the hash code of this set. see #equals since Android 1.0
public boolean	isEmpty() Returns true if this set has no elements. return {@code true} if this set has no elements, {@code false} otherwise. see #size since Android 1.0
public java.util.Iterator	iterator() Returns an iterator on the elements of this set. The elements are unordered. return an iterator on the elements of this set. see Iterator since Android 1.0
public boolean	remove(java.lang.Object object) Removes the specified object from this set. param object the object to remove. return {@code true} if this set was modified, {@code false} otherwise. throws UnsupportedOperationException when removing from this set is not supported. since Android 1.0
public boolean	removeAll(java.util.Collection collection) Removes all objects in the specified collection from this set. param collection the collection of objects to remove. return {@code true} if this set was modified, {@code false} otherwise. throws UnsupportedOperationException when removing from this set is not supported. since Android 1.0
public boolean	retainAll(java.util.Collection collection) Removes all objects from this set that are not contained in the specified collection. param collection the collection of objects to retain. return {@code true} if this set was modified, {@code false} otherwise. throws UnsupportedOperationException when removing from this set is not supported. since Android 1.0
public int	size() Returns the number of elements in this set. return the number of elements in this set. since Android 1.0
public java.lang.Object[]	toArray() Returns an array containing all elements contained in this set. return an array of the elements from this set. since Android 1.0
public T[]	toArray(T[] array) Returns an array containing all elements contained in this set. If the specified array is large enough to hold the elements, the specified array is used, otherwise an array of the same type is created. If the specified array is used and is larger than this set, the array element following the collection elements is set to null. param array the array. return an array of the elements from this set. throws ArrayStoreException when the type of an element in this set cannot be stored in the type of the specified array. see Collection#toArray(Object[]) since Android 1.0