public class Storage.KeySet
extends java.lang.Object
implements java.util.Set<java.lang.String>
| Constructor and Description |
|---|
KeySet() |
| Modifier and Type | Method and Description |
|---|---|
boolean |
add(java.lang.String str) |
boolean |
addAll(java.util.Collection<? extends java.lang.String> c) |
void |
clear() |
boolean |
contains(java.lang.Object obj) |
boolean |
containsAll(java.util.Collection<?> c) |
boolean |
isEmpty() |
java.util.Iterator<java.lang.String> |
iterator()
Returns an Iterator for iterating the keys.
|
boolean |
remove(java.lang.Object obj) |
boolean |
removeAll(java.util.Collection<?> c) |
boolean |
retainAll(java.util.Collection<?> c) |
int |
size() |
java.lang.Object[] |
toArray() |
<T> T[] |
toArray(T[] a) |
public int size()
size in interface java.util.Collection<java.lang.String>size in interface java.util.Set<java.lang.String>public boolean isEmpty()
isEmpty in interface java.util.Collection<java.lang.String>isEmpty in interface java.util.Set<java.lang.String>public boolean contains(java.lang.Object obj)
contains in interface java.util.Collection<java.lang.String>contains in interface java.util.Set<java.lang.String>public java.util.Iterator<java.lang.String> iterator()
The returned Iterator does not support the remove() operation because "adding or removing a key may change the order of the
keys" in the native Web Storage object.
iterator in interface java.lang.Iterable<java.lang.String>iterator in interface java.util.Collection<java.lang.String>iterator in interface java.util.Set<java.lang.String>public java.lang.Object[] toArray()
toArray in interface java.util.Collection<java.lang.String>toArray in interface java.util.Set<java.lang.String>public <T> T[] toArray(T[] a)
toArray in interface java.util.Collection<java.lang.String>toArray in interface java.util.Set<java.lang.String>public boolean add(java.lang.String str)
add in interface java.util.Collection<java.lang.String>add in interface java.util.Set<java.lang.String>public boolean remove(java.lang.Object obj)
remove in interface java.util.Collection<java.lang.String>remove in interface java.util.Set<java.lang.String>true if this set contained the specified element.public boolean containsAll(java.util.Collection<?> c)
containsAll in interface java.util.Collection<java.lang.String>containsAll in interface java.util.Set<java.lang.String>public boolean addAll(java.util.Collection<? extends java.lang.String> c)
addAll in interface java.util.Collection<java.lang.String>addAll in interface java.util.Set<java.lang.String>public boolean retainAll(java.util.Collection<?> c)
retainAll in interface java.util.Collection<java.lang.String>retainAll in interface java.util.Set<java.lang.String>public boolean removeAll(java.util.Collection<?> c)
removeAll in interface java.util.Collection<java.lang.String>removeAll in interface java.util.Set<java.lang.String>true if this set changed as a result of the call.public void clear()
clear in interface java.util.Collection<java.lang.String>clear in interface java.util.Set<java.lang.String>