This unit introduces the concept of classes and objects, and discusses the procedure for declaring classes and creating objects. You will learn to declare instance variables, methods, and local variables by using permitted modifiers such as public, protected, private, and package.
You will also learn to invoke overloaded constructors and chain constructors. You will learn features of the object-oriented programming (OOP) approach, which are inheritance and polymorphism. The unit also covers the procedures for reusing code and extending the use of existing classes by inheritance.
In addition, you will learn about the features of subclasses and relationships between classes. You will also learn about the procedure for and the effect of invoking overloaded and overridden methods. You will learn about the procedures for upcasting, downcasting, and identifying objects. This unit gives explanation of the keywords super and this. You will also learn to use the object reference super to access variables and invoke the methods of the superclass and the object reference this to refer to the current object.
Additionally, this unit details the procedures for declaring and using the static and final variables, methods, and final classes. The unit explains the implementation of abstract classes and dynamic method binding. This unit explains interfaces and packages. You will learn to implement interfaces and conceive a form of multiple inheritance. You will also learn how to create packages and import the packages into your Java source file to incorporate the already existing classes in your program.
Outcomes:
Students should be able to begin basic programming projects with Java using classes and objects and interfaces.
Assessment:
Students will expereince Pre-Topic and Post-Topic Assesments, as well as practice and assesments and each section within this course.
Course Information (see above or below lessons, outlines, activities, etc.)
Course Outline:
Classes and Inheritance
Classes and Objects
Classes & Objects: Overview
Methods
Instance Variables
Access Specifiers
Constructors
Encapsulation
Practice Session
Inheritance and Polymorphism
Inheritance: Implementing
Polymorphism
Overloading Methods
Overriding Methods
Casting
Practice Session
Nested Classes
Keywords: this & super
Using Static Methods, Variables & Initializers
Using Final Methods, Variables & Classes
Abstract Classes
Inner Classes
Practice Session
Creating Interfaces
Interfaces
Packages
Inheriting from the Object Class
Practice Session
Contact Hours: 24
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