How to Use partitioningBy Collector in Java Stream API

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

Reduce NullPointerExceptions with Optional in Java 8 & Beyond

"Billion Dollar Mistake?". NullPointerException is the most common and frequently appeared error compared to others, especially…

The Interface of Java and the Many Faces of It

Interface is an integral part of java and has become so powerful over the years, that…

Stream API: The Hero Without a Cape

The Stream API, included in Java 8, is utilised for processing collections of objects. Stream API…

Functional Interfaces To Become More Functional in Java

Using Functional interfaces provided by Java we can become more functional. And Knowing them would help…