3. Computers, Objects, and Java

3.1. Welcome

Welcome to Java, Java, Java, a book that introduces you to object-oriented programming using the Java language. When considering the purpose of this text, three important questions might come to mind: Why study programming? Why study Java? What is object-oriented programming? This chapter will address these questions. First, we provide a brief in- troduction to computers and the Internet and World Wide Web (WWW). Then, we address why someone would study programming and we ex- amine types of programming languages. We introduce the Java program- ming language and conclude the chapter by exploring object-oriented pro- gramming principles and how Java is an object-oriented programming language.