1 *java.util.Map.Entry* *Map.Entry* A map entry (key-value pair).
3 public static interface interface Map.Entry<K,V>
6 |java.util.Map.Entry_Description|
7 |java.util.Map.Entry_Fields|
8 |java.util.Map.Entry_Constructors|
9 |java.util.Map.Entry_Methods|
11 ================================================================================
13 *java.util.Map.Entry_Methods*
14 |java.util.Map.Entry.equals(Object)|Compares the specified object with this ent
15 |java.util.Map.Entry.getKey()|Returns the key corresponding to this entry.
16 |java.util.Map.Entry.getValue()|Returns the value corresponding to this entry.
17 |java.util.Map.Entry.hashCode()|Returns the hash code value for this map entry.
18 |java.util.Map.Entry.setValue(V)|Replaces the value corresponding to this entry
20 *java.util.Map.Entry_Description*
22 A map entry (key-value pair). The Map.entrySet method returns a collection-view
23 of the map, whose elements are of this class. The only way to obtain a
24 reference to a map entry is from the iterator of this collection-view. These
25 Map.Entry objects are valid only for the duration of the iteration; more
26 formally, the behavior of a map entry is undefined if the backing map has been
27 modified after the entry was returned by the iterator, except through the
28 setValue operation on the map entry.
32 *java.util.Map.Entry.equals(Object)*
34 public boolean equals(java.lang.Object o)
36 Compares the specified object with this entry for equality. Returns true if the
37 given object is also a map entry and the two entries represent the same
38 mapping. More formally, two entries e1 and e2 represent the same mapping if
40 (e1.getKey()==null ? e2.getKey()==null : e1.getKey().equals(e2.getKey())) and
41 and (e1.getValue()==null ? e2.getValue()==null :
42 e1.getValue().equals(e2.getValue()))
44 This ensures that the equals method works properly across different
45 implementations of the Map.Entry interface.
48 o - object to be compared for equality with this map entry
50 Returns: true if the specified object is equal to this map entry
52 *java.util.Map.Entry.getKey()*
56 Returns the key corresponding to this entry.
60 Returns: the key corresponding to this entry
62 *java.util.Map.Entry.getValue()*
66 Returns the value corresponding to this entry. If the mapping has been removed
67 from the backing map (by the iterator's remove operation), the results of this
72 Returns: the value corresponding to this entry
74 *java.util.Map.Entry.hashCode()*
78 Returns the hash code value for this map entry. The hash code of a map entry e
81 (e.getKey()==null ? 0 : e.getKey().hashCode()) ^ (e.getValue()==null ? 0 :
82 e.getValue().hashCode())
84 This ensures that e1.equals(e2) implies that e1.hashCode()==e2.hashCode() for
85 any two Entries e1 and e2, as required by the general contract of
90 Returns: the hash code value for this map entry
92 *java.util.Map.Entry.setValue(V)*
94 public |V| setValue(V value)
96 Replaces the value corresponding to this entry with the specified value
97 (optional operation). (Writes through to the map.) The behavior of this call is
98 undefined if the mapping has already been removed from the map (by the
99 iterator's remove operation).
102 value - new value to be stored in this entry
104 Returns: old value corresponding to the entry