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Java Data Analysis

Java Data Analysis

By : John R. Hubbard
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Java Data Analysis

Java Data Analysis

By: John R. Hubbard

Overview of this book

Data analysis is a process of inspecting, cleansing, transforming, and modeling data with the aim of discovering useful information. Java is one of the most popular languages to perform your data analysis tasks. This book will help you learn the tools and techniques in Java to conduct data analysis without any hassle. After getting a quick overview of what data science is and the steps involved in the process, you’ll learn the statistical data analysis techniques and implement them using the popular Java APIs and libraries. Through practical examples, you will also learn the machine learning concepts such as classification and regression. In the process, you’ll familiarize yourself with tools such as Rapidminer and WEKA and see how these Java-based tools can be used effectively for analysis. You will also learn how to analyze text and other types of multimedia. Learn to work with relational, NoSQL, and time-series data. This book will also show you how you can utilize different Java-based libraries to create insightful and easy to understand plots and graphs. By the end of this book, you will have a solid understanding of the various data analysis techniques, and how to implement them using Java.
Table of Contents (14 chapters)
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13
Index

Java Integrated Development Environments

To simplify Java software development, many programmers use an Integrated Development Environment (IDE). There are several good, free Java IDEs available for download. Among them are:

  • NetBeans
  • Eclipse
  • JDeveloper
  • JCreator
  • IntelliJ IDEA

These are quite similar in how they work, so once you have used one, it's easy to switch to another.

Although all the Java examples in this book can be run at the command line, we will instead show them running on NetBeans. This has several advantages, including:

  • Code listings include line numbers
  • Standard indentation rules are followed automatically
  • Code syntax coloring

Here is the standard Hello World program in NetBeans:

Java Integrated Development Environments

Listing 1 Hello World program

When you run this program in NetBeans, you will see some of its syntax coloring: gray for comments, blue for reserved words, green for objects, and orange for strings.

In most cases, to save space, we will omit the header comments and the package designation from the listing displays, showing only the program, like this:

Java Integrated Development Environments

Listing 2 Hello World program abbreviated

Or, sometimes just we'll show the main() method, like this:

Java Integrated Development Environments

Listing 3 Hello World program abbreviated further

Nevertheless, all the complete source code files are available for download at the Packt Publishing website.

Here is the output from the Hello World program:

Java Integrated Development Environments

Figure 6 Output from the Hello World program

Note

Appendix describes how to install and start using NetBeans.

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Java Data Analysis
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