TAILIEUCHUNG - Introduction to java programming: Chapter 9 - Inheritance and Polymorphism

Introduction to java programming: Chapter 9 - Inheritance and Polymorphism's Objectives is to develop a subclass from a superclass through inheritance; invoke the superclass’s constructors and methods using the super keyword; override methods in the subclass; distinguish differences between overriding and overloading. | Chapter 9 Inheritance and Polymorphism Liang Introduction to Java Programming Sixth Edition c 2005 Pearson Education Inc. All rights reserved. 0-13-148952-6 1 Objectives To develop a subclass from a superclass through inheritance . To invoke the superclass s constructors and methods using the super keyword . To override methods in the subclass . To distinguish differences between overriding and overloading . To explore the useful methods equals Object hashCode toString fìnalize clone and getClass in the Object class optional . To comprehend polymorphism dynamic binding and generic programming . To describe casting and explain why explicit downcasting is necessary . To store retrieve and manipulates objects in an ArrayList . To implement a Stack class using ArrayList . To restrict access to data and methods using the protected visibility modifier . To declare constants unmodifiable methods and nonextendable classes using the final modifier . Optional To understand the effect of hiding data fields and static methods . Optional To initialize data using initialization blocks and to distinguish between instance initialization and static initialization blocks . Optional GUI To use inheritance in GUI programming . Liang Introduction to Java Programming Sixth Edition c 2005 Pearson Education Inc. All 2 rights reserved. 0-13-148952-6 2 Superclasses and Subclasses GeometricObject -color String -filled boolean -dateCreated The color of the object default white . Indicates whether the object is filled with a color default false . The date when the object was created. GeometricObj ect getColor String setColor color String void isFilled boolean setFilled filled boolean void getDateCreated toString String Creates a GeometricObject. Returns the color. Sets a new color. Returns the filled property. Sets a new filled property. Returns the dateCreated. Returns a string representation of .

• Kỹ thuật lập trình
• Introduction to java programming
• Inheritance and Polymorphism
• Superclass’s Constructor Inherited
• Superclass’s Constructor
• Constructor Chaining
• Declaring a Subclass
• Java programming
• Programming with Java
• Programming language
• Java programming language
• Central processing unit
• Output devices
• Introduction to Computers
• Introduction to Programs
• Introduction to Java
• TicTacToe Applet
• SelfTest Website
• Java programs
• Programming language code
• Hardware terminology
• Java basics
• Elementary programming
• Declaring variables
• Event driven programming
• Event classes
• Object oriented programming
• Java coordinate system
• Graphics class
• OO programming
• UML class diagram
• Java Database Programming
• The Architecture of JDBC
• The JDBC Interfaces
• Developing JDBC Programs
• Creating ODBC Data Source
• Advanced Java Database Programming
• Creating Scrollable Statements
• SQL BLOB
• CLOB Types
• Retrieving Images in JDBC
• Object oriented programming with Java
• Scanner standard classes
• Control statements
• The API library
• Software engineering
• Classes with class members
• Array declaration
• Alternate coding mechanisms
• The object class
• Exception handling
• File I O classes