[Java Programming Proficiency Test Grade 2] Problem Collection | 60 Original Multiple-Choice Questions with Explanations for All Options

Verify your understanding of the grammar, object-oriented programming, exceptions, and collections covered in the Java ...

Learning Roadmap from Java to SQL to Spring Boot: The Order of Study for Aspiring Web App Developers with No Experience

I'm studying Java, but I don't know what to learn next.I often hear the terms SQL and Spring Boot, but how are they ...
InfoWorld

When to use abstract classes vs. interfaces in Java

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes and ...
LWN.net

Java programming dynamics, Part 1: Classes and class loading (IBM developerWorks)

Dennis M. Sosnoski discusses the Java binary class on IBM's developerWorks. "Take a look at what goes on behind the scenes of executing your Java application in this new series on the dynamic aspects ...