Lesson: Object-Oriented Programming Concepts (The Java Tutorials Learning the Java Language)

If you've never used an object-oriented programming language before, you'll need to learn a few basic concepts before you can begin writing any code. This lesson will introduce you to objects, classes, inheritance, interfaces, and packages. Each discussion focuses on how these concepts relate to the real world, while simultaneously providing an introduction to the syntax of the Java programming language. An object is a software bundle of related state and behavior. Software objects are often used to model the real-world objects that you find in everyday life.