Book Image

Kotlin for Enterprise Applications using Java EE

By : Raghavendra Rao K
Book Image

Kotlin for Enterprise Applications using Java EE

By: Raghavendra Rao K

Overview of this book

Kotlin was developed with a view to solving programmers’ difficulties and operational challenges. This book guides you in making Kotlin and Java EE work in unison to build enterprise-grade applications. Together, they can be used to create services of any size with just a few lines of code and let you focus on the business logic. Kotlin for Enterprise Applications using Java EE begins with a brief tour of Kotlin and helps you understand what makes it a popular and reasonable choice of programming language for application development, followed by its incorporation in the Java EE platform. We will then learn how to build applications using the Java Persistence API (JPA) and Enterprise JavaBeans (EJB), as well as develop RESTful web services and MicroServices. As we work our way through the chapters, we’ll use various performance improvement and monitoring tools for your application and see how they optimize real-world applications. At each step along the way, we will see how easy it is to develop enterprise applications in Kotlin. By the end of this book, we will have learned design patterns and how to implement them using Kotlin.
Table of Contents (13 chapters)

Kotlin versus Java

When we think of developing an application, Java is one of the programming languages that comes to mind for various reasons, including its robust and secure nature, and the independence of its platform. Most enterprise applications are built using Java, and this particular programming language has been around for more than 20 years.

Kotlin is designed to be interoperable with Java, meaning Kotlin can seamlessly co-exist with Java. We can add Kotlin to our existing applications and we can use Java-based frameworks for application development. With this bi-directional use of Kotlin, we can invoke Java constructs from Kotlin, or Kotlin constructs from Java.

Although Java and Kotlin are both JVM-based languages used for application development, there are several differences between them. Kotlin has addressed some of the limitations previously associated with Java...