Working with Nulls in Java 11
Learn the best practices and techniques to handle nulls effectively in Java.
What you'll learn
How many times have you thought "this object can never be null" only to be proven wrong? In this course, Working with Nulls in Java, you'll learn best practices for effectively handling nulls and avoid NullPointerExceptions. First, you'll see what nulls mean and some common ways to deal with them. Next, you'll explore how to use annotations to check for nulls. Finally, you'll discover how to use the Null Object pattern and the Optional type to reduce unexpected exceptions even further. When you're finished with this course, you'll understand the different techniques to handle nulls effectively in Java programs.
Table of contents
About the author
Esteban Herrera has more than twelve years of experience in the software development industry. He has worked in many roles and projects, but mostly architecting and developing enterprise systems with Java and Javascript. Among others, Esteban holds the PMI's Project Manager certification and the Oracle Java EE 6 Enterprise Architect Master Certification. Nowadays, he spends all of his time learning new things, writing articles, teaching programming, and enjoying his kids.