By contents separated by category, learn the concepts with examples of code to start programming the Java programming language and test your knowledge through a game of questions and answers composed of three levels of difficulty: Beginner, Intermediate and Advanced.

The content covered are:

Java
objects
Data types, variables and operators
String, vectors and matrices
Attributes, methods and constructors
Flux control
Overload and static methods
Packages and access modifiers
Inheritance and polymorphism
abstract classes and interfaces
exceptions