Week in review: 10 May 2021

New authors

Welcome to Deepu K Sasidharan, who published a first article on foojay.io this week.

Published this week

Tutorials

Rafael del Nero May 10, 2021 3,050 views

Optional takeWhile dropWhile Java Challenge

Main goal of the Optional class is to avoid NullPointerException. It’s much easier to deal with null when we use the concept of Optional.

Tutorials

Tutorials

Deepu K Sasidharan May 11, 2021 8,100 views

7 Functional Programming Techniques in Java: A Primer

In this article I'm going to focus on things that you can do in Java which are in line with functional programming concepts.

Tutorials

Java Core

Nicolas Frankel May 12, 2021 3,159 views

Introducing Teeing: A Hidden Gem in the Java API

teeing() method returns a Collector, a composite of two downstream collectors. There will be a single Collector and a single pass in the …

Java Core

Security

Brian Vermeer May 13, 2021 9,906 views

Sanitize All Input! Sanitize All Input! Sanitize All Input!

Cross-site scripting (XSS) is a well-known issue and mostly utilized in JavaScript applications. However, Java is not immune to this!

Security