I have an enum class: enum class E { A, B, C, D } What is the neatest way to initialize an EnumMap containing all of E's values as keys, each with an initial value of 0? val map = ...? assert(map ...

I need to statically initialize an EnumMap. I know two ways. Using of() method of Map private static final Map<<EnumKey>, <Value>> TEST_MAP = Map.of(ENUM_CONST1, "Value1&quo...

The following is from the Implementation Note section of Java doc of EnumMap : Implementation note: All basic operations execute in constant time. They are likely (though not guaranteed) to be ...

EnumMap<K extends Enum<K>, V> in Java is clearly ordered by definition of the associated enum, as you can also see in the javadoc: Enum maps are maintained in the natural order of the...

I'm trying to figure out how to deserialize an EnumMap. I have been using the Gson library for everything else so far and have been successful. This is proving difficult. Here's a basic idea: imp...

As we already have HashMap, why would we use EnumMap?

I recently learnt about the benefits of EnumMap in Java and would like to replace the existing ImmutableMap<OccupancyType, BigDecimal> to EnumMap. However, I'd also like the immutable propert...

From a java.util.function.BiFunction that maps a pair of Enums into a value, I want to build a EnumMap that reflects that mapping. For instance, let E1 and E2 be enum types and T any given type: ...

I'm trying to weigh the pros and cons of using an EnumMap over a HashMap. Since, I will always be looking up using a String, it seems that a HashMap with a String key would be the right choice. How...

Curious if anybody has considered using EnumMap in place of Java beans, particularly "value objects" (with no behavior)? To me it seems that one advantage would be that the name of a "property" wou...