Class AbstractMap.SimpleEntry<K,V>

java.lang.Object
java.util.AbstractMap.SimpleEntry<K,V>
All Implemented Interfaces:
Map.Entry<K,V>
Enclosing class:
AbstractMap<K,V>
public static class AbstractMap.SimpleEntry<K,V> extends Object implements Map.Entry<K,V>

A key-value mapping.

Type parameter K: the type of key Type parameter V: the type of value

Since

1.6

  • Constructor Summary

    Constructors
    Constructor
    Description
    SimpleEntry(Map.Entry<? extends K, ? extends V> entry)
    Constructs a new instance by an entry
    SimpleEntry(K theKey, V theValue)
    Constructs a new instance by key and value.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    equals(Object object)
    Answers whether the object is equal to this entry.
    K
    getKey()
    Returns the key.
    V
    getValue()
    Returns the value.
    int
    hashCode()
    Answers the hash code of this entry.
    V
    setValue(V object)
    Sets the value of this entry to the specified value, replacing any existing value.
    String
    toString()
    Answers a String representation of this entry.

    Methods inherited from class Object

    clone, getClass, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • SimpleEntry

      public SimpleEntry(K theKey, V theValue)

      Constructs a new instance by key and value.

      Parameters

      • theKey: the key

      • theValue: the value

    • SimpleEntry

      public SimpleEntry(Map.Entry<? extends K, ? extends V> entry)

      Constructs a new instance by an entry

      Parameters
      • entry: the entry

  • Method Details

    • getKey

      public K getKey()

      Returns the key.

      Returns

      the key

      See also
      • java.util.Map.Entry#getKey()
      Specified by:
      getKey in interface Map.Entry<K,V>

    • getValue

      public V getValue()

      Returns the value.

      Returns

      the value

      See also
      • java.util.Map.Entry#getValue()
      Specified by:
      getValue in interface Map.Entry<K,V>

    • setValue

      public V setValue(V object)

      Sets the value of this entry to the specified value, replacing any existing value.

      Parameters
      • object: the new value to set.
      Returns

      object the replaced value of this entry.

      See also
      • java.util.Map.Entry#setValue(java.lang.Object)
      Specified by:
      setValue in interface Map.Entry<K,V>

    • equals

      public boolean equals(Object object)

      Answers whether the object is equal to this entry. This works across all kinds of the Map.Entry interface.

      See also
      • java.lang.Object#equals(java.lang.Object)
      Specified by:
      equals in interface Map.Entry<K,V>
      Overrides:
      equals in class Object
      Returns:

      true if the specified Object is equal to this Map.Entry, false otherwise.

      See also
      • #hashCode()

    • hashCode

      public int hashCode()

      Answers the hash code of this entry.

      See also
      • java.lang.Object#hashCode()
      Specified by:
      hashCode in interface Map.Entry<K,V>
      Overrides:
      hashCode in class Object

    • toString

      public String toString()

      Answers a String representation of this entry.

      See also
      • java.lang.Object#toString()
      Overrides:
      toString in class Object