Java 8 Optional Example

Dani Buiza August 7th, 2014

In this article, we are going to show how to use the new Java Optional – java.util.Optional class. 1. Introduction The null reference is a very common problem in Java, everybody got once a NullPointerException because some variable or input parameter was not properly validated. In Java, null, can have a logical value and a meaning; so it is important ...