Collection

An interview cant be complete without this question. HashMap working contains most of the concept we used in our codes. It need hashcode and …

To use the partitioningBy Collector, you have to pass the Collectors.partitioningBy in the collect() method of Stream API.

most asked interview question, Comparable vs Comparator. Both beginners and experienced persons get this question in their interviews

Stream API’s groupingBy is similar to GROUP BY of SQL since it groups and collects the objects based on given condition or value.

how you can iterate over a List, be it ArrayList, LinkedList or any other. Basic loop to iteration to Stream API. And also, figure …

The Stream API, included in Java 8, is utilised for processing collections of objects. Stream API can make your code more simple, efficient, and …