Java / Java8 streams
Explain Java8 Collectors partitioningBy method.
Java 8 Collectors.partitioningBy method accepts a predicate and returns a Collector by partitioning the element of the stream using Predicate so it will have 2 keys at most in Map. The key of the map can be only true and false and each key's value is a list of elements.
Consider the below example. This program checks if each item of list1 exists in list2 and partition with predicate.
More Related questions...