Welcome to Day 11! Today, you'll learn more about some of the Java techniques you've already seen in passing—basing a class on another class, using inheritance, overriding Java methods, and more. These are all Java techniques that are essential to know if you're going to do anything beyond the most basic operations in JSP.
Creating subclasses and superclasses
Creating abstract classes
Learning these techniques will enable you to build more powerful Java code and more powerful JavaBeans.