Advanced Java

Solidify their Java foundational knowledge, including the important contracts of class Object

Understand the uses and consequences of inheritance and composition, and reinforce the role of interfaces

Leverage fundamental OO principles such as cohesion, coupling, and polymorphism

Use the JUnit testing framework and become fluent in writing assertions to verify correct program behavior

Understand UML modeling in class diagrams and sequence diagrams

Use advanced techniques for object creation, including factories and singletons

Use established design patterns for object composition, including Strategy, Decorator, and Facade

Write and use generic classes and methods

Leverage the use cases for inner classes and refactor existing code to use them when appropriate

Create and use custom annotations

Use reflection and how to use it

Understand the role of functional interfaces

Understand lambda expressions and method references, and use them to pass behavior (methods)

Use the Stream API to perform complex processing of collections and other input sources

Create and use Java modules, understanding module descriptors, modular JARs, exports and dependencies, and the modulepath

Understand the structure and behavior of the modular JDK, and how it supports modular applications as well as legacy classpath-based code