Writing Java Programs 2

Object-Oriented Programming Concepts: A Primer cuts through the hype surrounding object-oriented technology and teaches you its core concepts: objects, messages, classes, and inheritance. It's important to understand these key concepts before delving into the specifics of the Java language. This lesson also contains a bibliography for further reading on the subject. Feel free to skip this lesson if you are already familiar with object-oriented programming.
The Nuts and Bolts of the Java Language introduces you to several components of the Java language by explaining a simple Java application line by line. You will learn about the syntax and semantics of the Java language, plus several features of the Java programming environment.
Objects, Classes, and Interfaces takes the concepts you learned in Object-Oriented Programming Concepts: A Primer and walks you through how to make use of those concepts in the Java language. You will learn how to create, use, and destroy objects, how to write your own classes, including information about writing methods and creating subclasses, and how to create and use interfaces. And finally, this lesson shows you how to manage your classes and interfaces within packages. This lesson is a complete do-it-yourself "Object-Oriented Programming in Java" lesson.