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Tests and Answers to Questions
After each lesson you can pass tests to verify what you have learned and to answer to the questions left. -
Oracle Java Certifications
Oracle Corporation has a range of internationally recognized exams for IT specialists. -
Articles and Literature
Articles and literature for learning Java language. -
Web Services and JPA
Articles to learn Web Services and Java Persistence API.
OOP Concepts
Description of main Object Oriented Programming (OOP) concepts in Java - Encapsulation, Inheritance, and Polymorphism.
Full lesson
Overloading and Overriding
What are the method overloading and overriding, rules, and examples? Difference between these two concepts. The main usage of overriding.
Full lesson
Lambda in Java Language
Lambda expressions, method references, java.util.function interfaces: Predicate, Supplier, Consumer, Function, their primitive and binary specializations.
Full lesson
Inner Class
Features, syntax, and examples of a regular inner class, a method-local inner class, an anonymous inner class, and a static nested class.
Full lesson
Try-Catch
Using try-catch and finally block in Java. Handle multiple exceptions in one block. The AutoCloseable resource in the try-with-resources statement in Java 7.
Full lesson
Why should I learn Java?
Java has a rich API, which allows to solve different problems, but still is easy in learning. It has a lot of forums, resources and still is growing.
High average salary
Great possibilities
Universal usage
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