An Introduction to Java Set collections interface. Learn what is Set and how is it different than other collections of Java.
Examples of creating and initializing mutable and immutable Java HashSet instance inline using Plain Java, Guava Library, Streams, etc.
Learn ways of Collecting a Stream of List into Map using Java Streams API. Using Collectors.toMap and Collectors.groupingBy with example.
A guide to Java 8 Collections API enhancements. Learn about the changes like streams, new methods with the help of code examples.