A Primer on Java
With Membership
Suggested price

A Primer on Java

Second Edition

About the Book

A gentle introduction to the basics of Java. No prior programming experience is necessary to read this text. My purpose was to write an easy but non-verbose introduction to the language.

The book however is not intended as a reference work or for a full time Java programmer since it does not have an exaustive topic coverage.

About the Author

Rahul Batra
Rahul Batra

Rahul Batra was first introduced to programming in 1996 in GWBASIC, but he did not seriously foray into it till 2001 when he started learning C++. Along the way, there were dabblings in many other languages like C, Ruby, Perl and Java. He has worked on Oracle, MySQL, Sybase ASA, Ingres and SQLite.

Rahul has been programming professionally since 2006 and currently lives and works in Gurgaon, India.

Table of Contents

  • Preface
  • About the author
  • Acknowledgements
  • 1 An introduction to Java
    • 1.1 What is Java?
    • 1.2 Advantages of Java
    • 1.3 Getting Java
    • 1.4 Writing your first Java program
    • 1.5 Analyzing your first program
  • 2 Data Types and Variables
    • 2.1 Literals
    • 2.2 Variables
    • 2.3 Data Types
  • 3 Introducing Classes & Objects
    • 3.1 Abstraction
    • 3.2 Defining classes and objects
    • 3.3 Creating a class in Java
    • 3.4 Objects and references
  • 4 Conditional Statements
    • 4.1 Comparison Operators
    • 4.2 If-Else Conditional
    • 4.3 Switch Conditionals
  • 5 Iteration Statements
    • 5.1 The while loop
    • 5.2 The do-while loop
    • 5.3 The for loop
    • 5.4 break and continue
  • 6 Arrays
    • 6.1 Array Initialization
    • 6.2 Using Arrays
    • 6.3 The enhanced for loop
  • 7 Methods
    • 7.1 Parameters & Return Values
    • 7.2 Constructors
  • 8 Strings
    • 8.1 String Methods
    • 8.2 Escape Characters
    • 8.3 Comparing Strings
  • 9 Inheritance
    • 9.1 Extending a class
    • 9.2 Access Specifiers
    • 9.3 The super Keyword
    • 9.4 The Object class
  • 10 Abstract Classes and Interfaces
    • 10.1 Abstract Classes
    • 10.2 Interfaces
    • 10.3 Multiple Inheritance and Interfaces
  • 11 Exception Handling
    • 11.1 The try-catch block
    • 11.2 Java Exception Classes
    • 11.3 Throwing an exception
    • 11.4 The finally statement
  • 12 Packages in Java
    • 12.1 What is a package?
    • 12.2 Packaging a class
    • 12.3 The CLASSPATH variable
    • 12.4 Importing packages
  • Further Reading
  • Appendix: Code Editors and Integrated Development Environments
  • Glossary

The Leanpub 60 Day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.

You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!

So, there's no reason not to click the Add to Cart button, is there?

See full terms...

80% Royalties. Earn $16 on a $20 book.

We pay 80% royalties. That's not a typo: you earn $16 on a $20 sale. If we sell 5000 non-refunded copies of your book or course for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earnedover $13 millionwriting, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub