TAILIEUCHUNG - Lecture Java methods: Object-oriented programming and data structures (2nd AP edition): Chapter 11 - Maria Litvin, Gary Litvin

Chapter 11 - Class hierarchies and interfaces. In this chapter, the learning objectives are: Understand class hierarchies and polymorphism, learn about abstract classes, learn the syntax for calling superclass’s constructors and methods, understand interfaces. | Class Hierarchies and Interfaces Copyright © 2011 by Maria Litvin, Gary Litvin, and Skylight Publishing. All rights reserved. Java Methods Object-Oriented Programming and Data Structures Maria Litvin ● Gary Litvin 2nd AP edition with GridWorld 11- Class hierarchies is the heart of OOP. Objectives: Understand class hierarchies and polymorphism Learn about abstract classes Learn the syntax for calling superclass’s constructors and methods Understand interfaces 11- Also work on the GridWorld Dance project. Inheritance Inheritance represents the IS-A relationship between objects: an object of a subclass IS-A(n) object of the superclass. Superclass (Base class) Subclass (Derived class) Subclass extends Superclass 11- A subclass inherits all the fields and methods of its superclass, but not the constructors. Class Hierarchies Using inheritance, a programmer can define a hierarchy of classes. 11- The class Actor is a generic class that represents any kind of “actor” in .

• Kỹ thuật lập trình
• Java methods
• Lecture note Java methods
• Object oriented programming
• Data structures
• Lập trình hướng đối tượng
• Java syntax
• Java collections framework
• Hardware terms
• Software development
• OO program models
• Describing algorithms
• Data types
• Boolean expressions
• Iterative statements
• Implementing classes
• String class
• Initializing arrays
• ArrayList pitfalls
• Binary search
• Binary files
• Computer graphics
• GUI components
• Mouse events