Author: James Hartman

Oracle Certified Java Professional I'm James Hartman, an Oracle Certified Java Professional. With 20 years in the field, I specialize in AngularJS, JavaScript, Java, Node.js, Scala, Kotlin, and more. I've crafted numerous tutorials on these technologies, drawing from my extensive experience. Beyond tech, I'm passionate about painting and singing. My journey in technology began after graduating from University of Pennsylvania, where I delved into computer science. With years of experience developing Java applications, I've contributed to open-source projects and mentored aspiring developers, continuously evolving my craft.
James Hartman

James Hartman


Oracle Certified Java Professional I’m James Hartman, an Oracle Certified Java Professional. With 20 years in the field, I specialize in AngularJS, JavaScript, Java, Node.js, Scala, Kotlin, and more. I’ve crafted numerous tutorials on these technologies, drawing from my extensive experience. Beyond tech, I’m passionate about painting and singing. My journey in technology began after graduating from University of Pennsylvania, where I delved into computer science. With years of experience developing Java applications, I’ve contributed to open-source projects and mentored aspiring developers, continuously evolving my craft.

Subscribe to our Newsletter

If you don’t want to miss any new tutorials and want to stay updated with industry trends:

Subscribe to our free newsletter

Latest Author Post

Top 22 Java Design Patterns Interview Questions (2025)
80 Java Collections Interview Questions and Answers (2025)
35+ Java 8 Interview Questions and Answers (2025)
100+ Java Interview Questions and Answers (2025)
Kotlin vs Java – Difference Between Them
Comparable vs Comparator in Java
Scala vs Java – Difference Between Them
Java vs Python – Difference Between Them
Java vs C# – Difference Between Them
JDK vs JRE vs JVM in Java – Difference Between Them

End of content

End of content