This
interface represents a single mapping, or association, between a key
object and a value object in a Map. Like
Map itself, Map.Entry has been
made generic in Java 5.0 and defines the same type variables that
Map does.
The enTRySet( ) method of a Map
returns a Set of Map.Entry
objects that represent the set of mappings in the map. Use the
iterator( ) method of that Set
to enumerate these Map.Entry objects. Use
getKey( ) and getValue( ) to
obtain the key and value objects for the entry. Use the optionally
supported setValue( ) method to change the value
of an entry. This method throws a
java.lang.UnsupportedOperationException if it is
not supported by the implementation.
public interface Map.Entry<K,V> {
// Public Instance Methods
boolean equals(Object o);
K getKey( );
V getValue( );
int hashCode( );
V setValue(V value);
}