Java 3: object-oriented programming, software development

This book is the third in a series of books on software development. The programming language is Java, and the language and its syntax and semantics fills obviously much, but the books have also largely focus on the process and how to develop good and robust applications. In the first book I have generally mentioned classes and interfaces, and although the book Java 2 also intesiv used classes and interfaces I have deferred the details to this book and also the next, that are dealing with object-oriented programming. It deals with how a running program consists of cooperating objects and how these objects are defined and created on the basis of the program’s classes. Object-oriented programming is the knowledge of how to find and write good classes to a program, classes which helps to ensure that the result is a robust program that is easy to maintain. The subject of this book is object-oriented programming and here primarily about classes and how classes are used as the basic building blocks for developing a program. The book assumes a basic knowledge of Java corresponding to the book Java 1 of this series, but since some of the examples and exercises are relating to programs with a graphical user interface it is also assumed knowledge of the book Java 2 and how to write less GUI programs.