Added in API level 9

Summary: Ctors | Methods | Inherited Methods

AbstractMap.SimpleImmutableEntry

public static class AbstractMap.SimpleImmutableEntry
extends Object implements Entry<K, V>, Serializable

java.lang.Object
↳	java.util.AbstractMap.SimpleImmutableEntry<K, V>

An unmodifiable Entry maintaining a key and a value. This class does not support the setValue method. Instances of this class are not associated with any map nor with any map's entry-set view.

Summary

Public constructors
`SimpleImmutableEntry(Entry<? extends K, ? extends V> entry)` Creates an entry representing the same mapping as the specified entry.
`SimpleImmutableEntry(K key, V value)` Creates an entry representing a mapping from the specified key to the specified value.

Public methods
`boolean`	`equals(Object o)` Compares the specified object with this entry for equality.
`K`	`getKey()` Returns the key corresponding to this entry.
`V`	`getValue()` Returns the value corresponding to this entry.
`int`	`hashCode()` Returns the hash code value for this map entry.
`V`	`setValue(V value)` Replaces the value corresponding to this entry with the specified value (optional operation).
`String`	`toString()` Returns a String representation of this map entry.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

From interface


        
          java.util.Map.Entry

`static <K, V> Comparator<Entry<K, V>>`	`comparingByKey(Comparator<? super K> cmp)` Returns a comparator that compares `Map.Entry` by key using the given `Comparator`.
`static <K extends Comparable<? super K>, V> Comparator<Entry<K, V>>`	`comparingByKey()` Returns a comparator that compares `Map.Entry` in natural order on key.
`static <K, V> Comparator<Entry<K, V>>`	`comparingByValue(Comparator<? super V> cmp)` Returns a comparator that compares `Map.Entry` by value using the given `Comparator`.
`static <K, V extends Comparable<? super V>> Comparator<Entry<K, V>>`	`comparingByValue()` Returns a comparator that compares `Map.Entry` in natural order on value.
`static <K, V> Entry<K, V>`	`copyOf(Entry<? extends K, ? extends V> e)` Returns a copy of the given `Map.Entry`.
`abstract boolean`	`equals(Object o)` Compares the specified object with this entry for equality.
`abstract K`	`getKey()` Returns the key corresponding to this entry.
`abstract V`	`getValue()` Returns the value corresponding to this entry.
`abstract int`	`hashCode()` Returns the hash code value for this map entry.
`abstract V`	`setValue(V value)` Replaces the value corresponding to this entry with the specified value (optional operation).

Public constructors

SimpleImmutableEntry

Added in API level 9

public SimpleImmutableEntry (Entry<? extends K, ? extends V> entry)

Creates an entry representing the same mapping as the specified entry.

Parameters
`entry`	`Entry`: the entry to copy

SimpleImmutableEntry

Added in API level 9

public SimpleImmutableEntry (K key, 
                V value)

Creates an entry representing a mapping from the specified key to the specified value.

Parameters
`key`	`K`: the key represented by this entry
`value`	`V`: the value represented by this entry

Public methods

equals

Added in API level 9

public boolean equals (Object o)

Compares the specified object with this entry for equality. Returns true if the given object is also a map entry and the two entries represent the same mapping. More formally, two entries e1 and e2 represent the same mapping if

   (e1.getKey()==null ?
    e2.getKey()==null :
    e1.getKey().equals(e2.getKey()))
   &&
   (e1.getValue()==null ?
    e2.getValue()==null :
    e1.getValue().equals(e2.getValue()))

This ensures that the equals method works properly across different implementations of the Map.Entry interface.

Parameters
`o`	`Object`: object to be compared for equality with this map entry

Returns
`boolean`	`true` if the specified object is equal to this map entry

See also:

hashCode()

getKey

Added in API level 9

public K getKey ()

Returns the key corresponding to this entry.

Returns
`K`	the key corresponding to this entry

getValue

Added in API level 9

public V getValue ()

Returns the value corresponding to this entry.

Returns
`V`	the value corresponding to this entry

hashCode

Added in API level 9

public int hashCode ()

Returns the hash code value for this map entry. The hash code of a map entry e is defined to be:

   (e.getKey()==null   ? 0 : e.getKey().hashCode()) ^
   (e.getValue()==null ? 0 : e.getValue().hashCode())

This ensures that e1.equals(e2) implies that e1.hashCode()==e2.hashCode() for any two Entries e1 and e2, as required by the general contract of Object.hashCode.

Returns
`int`	the hash code value for this map entry

See also:

equals(Object)

setValue

Added in API level 9

public V setValue (V value)

Replaces the value corresponding to this entry with the specified value (optional operation). This implementation simply throws UnsupportedOperationException, as this class implements an unmodifiable map entry.

Implementation Requirements:

The implementation in this class always throws UnsupportedOperationException.

Parameters
`value`	`V`: new value to be stored in this entry

Returns
`V`	(Does not return)

Throws
`UnsupportedOperationException`	always

toString

Added in API level 9

public String toString ()

Returns a String representation of this map entry. This implementation returns the string representation of this entry's key followed by the equals character ("=") followed by the string representation of this entry's value.

Returns
`String`	a String representation of this map entry