Map<K, V> Factory Method Examples `Map immutableEmptyMap = Map.of();`
- Initializes an empty, immutable `Map`.
Initializes an immutable Map<Integer, Integer> with two initial key-value entries. Initializes an immutable Map<Integer, Integer> with two initial key-value entries. Initializes a mutable Map<Integer, Integer> from an immutable Map<Integer, Integer>.
Syntax static <E> List<E> of()static <E> List<E> of(E e1)static <E> List<E> of(E e1, E e2)static <E> List<E> of(E e1, E e2, ..., E e9, E e10)static <E> List<E> of(E... elements)static <E> Set<E> of()static <E> Set<E> of(E e1)static <E> Set<E> of(E e1, E e2)static <E> Set<E> of(E e1, E e2, ..., E e9, E e10)static <E> Set<E> of(E... elements)static <K,V> Map<K,V> of()static <K,V> Map<K,V> of(K k1, V v1)static <K,V> Map<K,V> of(K k1, V v1, K k2, V v2)static <K,V> Map<K,V> of(K k1, V v1, K k2, V v2, ..., K k9, V v9, K k10, V v10)static <K,V> Map<K,V> ofEntries(Map.Entry<? extends K,? extends V>... entries)
Parameters | Method w/ Parameter | Description |
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List.of(E e) | A generic type that can be a class or interface. | Set.of(E e) | A generic type that can be a class or interface. | Map.of(K k, V v) | A key-value pair of generic types that can each be a class or interface. | Map.of(Map.Entry<? extends K, ? extends V> entry) | A Map.Entry instance where its key can be K or one of its children, and its value can be V or any of its children. |
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