How to Create Immutable Map in Java?
Learn to create an immutable or unmodifiable Map using the factory methods added in Java 9 and other versions (Java 8 to Java 21) with examples.
Java Immutable Vs. Unmodifiable Map: What’s Difference?
Learn to create immutable and unmodifiable maps in Java using Java collections APIs and Guava’s ImmutableMap class.
Collecting Stream Elements into Immutable Collection
Learn to convert a Stream into immutable/unmodifiable collection using Stream methods such as stream() and Collectors.toUnmodifiableList().