Book Image

Java 9 Programming By Example

By : Peter Verhas
Book Image

Java 9 Programming By Example

By: Peter Verhas

Overview of this book

This book gets you started with essential software development easily and quickly, guiding you through Java’s different facets. By adopting this approach, you can bridge the gap between learning and doing immediately. You will learn the new features of Java 9 quickly and experience a simple and powerful approach to software development. You will be able to use the Java runtime tools, understand the Java environment, and create Java programs. We then cover more simple examples to build your foundation before diving to some complex data structure problems that will solidify your Java 9 skills. With a special focus on modularity and HTTP 2.0, this book will guide you to get employed as a top notch Java developer. By the end of the book, you will have a firm foundation to continue your journey towards becoming a professional Java developer.
Table of Contents (17 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Compiling and running the application


We use gradle to compile and run the application. Since the application does not have any specific configuration that would not appear in most similar applications, it is wise to use the Spring boot. The Spring boot makes it extremely simple to create and run a web application. We need a Java standard public static void main method that starts up the application via Spring:

package packt.java9.by.example.mybusiness.productinformation; 
import ... 
@SpringBootApplication( 
        scanBasePackageClasses = 
          packt.java9.by.example.mybusiness.SpringScanBase.class) 
public class Application { 
    public static void main(String[] args) { 
        SpringApplication.run(Application.class, args); 
    } 
}

The method does nothing but start the StringApplication class's run method. It passes the original arguments and also the class that the application is in. Spring uses this class to read the annotation. The @SpringBootApplication annotation signals...