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All LessonsFree Lessons (8)

Introduction

History The Java Ecosystem Java Development Kit Structure of the Course

Java Syntax and Conventions

Primitives and Arrays Classes in Java Comments in Java Java 5 Java 6 Quiz: Overview of Java

Java 7

Language Updates Fork/Join New IO (nio)JVM Benefits Quiz: Java 7

Idiomatic Java 8: Lambdas, Streams, and Dates

What is Included in Java 8?Lambda Expressions Code: Java 8 vs. Java 7 Defaults Streams For Each and Map/Reduce Parallel Array Peek, Limit, Sort Collectors and Statistics Grouping and Partitioning Comparison to Java 7 Optional Class Nashorn

New Date and Time API

New Classes Creating Date/Time Objects and Enums API Features

Java 8 Miscellaneous

Features Functional Programming: Functions and Tuples Functional Programming: Immutability and Concurrency Functional Programming: Tail-Call Optimization Backports Quiz: Java 8

Advantages of Java 9

Introduction Modularity JShell Quiz: Java 9

Java 10 - 17

Local Variable Types and Lambda Expressions Java 12 - 17: Features Quiz: Java 10+

Java Ecosystem

Overview Continuous Development and Testing Testing and Frameworks What's Included?

Maven and JUnit

Maven Starting a New Project JUnit Quiz: Maven and JUnit

Utilizing Essential Libraries

Introduction Logback Hibernate Guava

Modern Java Concurrency

Concurrent Programming in Java Java Futures STM in Clojure and Actors Groovy GPars Quiz: Java Concurrency

RxJava

Introduction Parallel Computing Schedulers and Publishers Hot vs. Cold

Other JVM Languages

Why Use Non-Java Languages?

Polyglot Programming and Edge-Craft

Groovy vs. Scala

Groovy

Introduction Closures and Switch Statements Command Chains and Modules Frameworks Quiz: Groovy

Gradle

Getting Started Configuration Properties Quiz: Gradle

Spock

Introduction Mocking and Lists Quiz: Spock

Scala

Introduction Primitives in Scala Switch Statements in Scala Traits and Lists Tuples and Maps For Expressions Blast From the Past The Scala Ecosystem

RESTful

Introduction Groovy and Scala JAX-RS Quiz: RESTful

Microservices and Clouds

Microservices Clouds Quiz: Microservices

Grails

Introduction REST in Grails A History Lesson Testing and Some Plugins Quiz: Grails

Spark

Introduction Filters and Sessions

Spring Boot

Gradle Plugin Demo Application Auto-Configuration and Actuator Quiz: Spring Boot

Play Framework

Introduction Features

Ratpack

Introduction Layout and Handlers Rendering and JSON Binding, Blocking and Configuration Testing and Conclusion Summary

Final Thoughts

What to Expect Java 8 Cheat Sheet

Appendix

Setting up the Environment Groovy for Java Devs Groovy for Scala Devs

The All-in-One Guide to Java Programming/

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Why Use Non-Java Languages?

Why Use Non-Java Languages?

Learn about the use of non-Java languages.

We'll cover the following...

Java vs. JVM
Scala
Groovy
Clojure

Since the JVM runs Java byte-code and not actual Java-code, it is possible to compile different languages into byte-code to be run on the JVM. Also, some languages can be interpreted at runtime on top of the JVM.

There are many different reasons to use other languages on the JVM. We’re able to quickly change code in production or development and not have to recompile our codebase. This can make development faster and more ...