io.neow3j.devpack

Class Map<K,V>

java.lang.Object

io.neow3j.devpack.Map<K,V>

public class Map<K,V>
extends java.lang.Object

A NeoVM-specific map for mapping keys to values of any NeoVM-compatible types.

Constructor Summary

Constructors

Constructor and Description
Map() Constructs a new Map.

Method Summary

Modifier and Type	Method and Description
boolean	containsKey(K key) Checks if this map contains the given key.
V	get(K key) Gets the value to which the given key is mapped, or null if this map contains no mapping for the key.
K[]	keys() Returns an array of the keys contained in this map.
void	put(K key, V value) Associates the given value with the given key in this map.
void	remove(K key) Removes the mapping for the given key from this map.
V[]	values() Returns an array of the values contained in this map.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Map

public Map()

Constructs a new Map.

Method Detail

get

public V get(K key)

Gets the value to which the given key is mapped, or null if this map contains no mapping for the key.

Parameters:

key - The key.

Returns:

the corresponding value.

put

public void put(K key,
                V value)

Associates the given value with the given key in this map. If the map previously contained a mapping for the key, the old value is replaced by the new value.

Parameters:

key - The key.

value - The value.

values

public V[] values()

Returns an array of the values contained in this map. Changes to the array are not reflected in the map.

Returns:

an array of this map's values.

keys

public K[] keys()

Returns an array of the keys contained in this map. Changes to the array are not reflected in the map.

Returns:

an array of this map's keys.

containsKey

public boolean containsKey(K key)

Checks if this map contains the given key.

Parameters:

key - The key to check.

Returns:

true, if this map contains a mapping for the specified key. False, otherwise.

remove

public void remove(K key)

Removes the mapping for the given key from this map.

Parameters:

key - The key whose mapping is to be removed from the map.