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Texas Computer Science 2

Classes and Object-Oriented Programming

Students learn how objects store data and interact with each other in Java programs.

Lessons

6.1 Introduction to Classes and Objects

  • What is a Class?
  • Quiz: Classes and Objects
  • The Rectangle Class
  • The Point Class
  • The Student Class
  • +4 more

6.2 Classes vs. Objects

  • Classes and Objects
  • Classes vs. Objects vs. Instances
  • Classes, Objects, and Instances
  • Creating Rectangle Objects
  • Text Messages

6.3 Using a Class as a Client

  • How to Use a Class
  • Quiz: Client of a Class
  • Using the Rectangle Class as a Client
  • Using the Randomizer Class as a Client
  • Coin Flips
  • +4 more

6.4 Writing Classes

  • Constructors
  • Quiz: Constructors
  • Rectangle toString
  • Student toString
  • toString for Flowers
  • +5 more

6.5 Writing Classes and Instance Methods

  • Writing Instance Methods
  • Quiz: Writing Methods
  • Area of a Rectangle
  • Moving a Point
  • Writing getPerimeter()
  • +4 more

6.6 Getter and Setter Methods

  • Getter and Setter Methods
  • Quiz: Getter and Setter Methods
  • Rectangle Getter Methods
  • Student Getter Methods
  • Text Messages Getter Methods
  • +4 more

6.7 Class Methods and Class Variables

  • Static Methods and Variables (Class Methods and Class Variables)
  • Quiz: Static Methods
  • Student Class Variables and Methods
  • Using the Math Class
  • Using Randomizer
  • +6 more

6.8 Wrapper Classes

  • Wrapper Classes
  • Quiz: Wrapper Classes
  • Creating Integers
  • Using Doubles
  • Autoboxing Example
  • +3 more

6.9 Method Overloading

  • Method Overloading
  • Method Overloading Quiz
  • Sum Method Overloading
  • Constructor Overloading
  • Average Method Overloading
  • +1 more

6.10 Local Variables and Scope

  • Local Variables and Scope
  • Local Variables and Scope Quiz
  • Instance Variable Scope
  • Local Variable Scope
  • Variable Shadowing
  • +1 more

6.11 Key Terms for Classes

  • Key Terms for Classes
  • Quiz: This Keyword
  • Rectangles and this
  • Batteries
  • Write Your Own CodeHS

6.12 Objects vs Primitives

  • Objects vs Primitives
  • Objects vs Primitives Quiz
  • Comparing Rectangles
  • Changing Dogs
  • Null Pointer Exception
  • +3 more

6.13 Inheritance

  • Inheritance
  • Quiz: Subclasses and Superclasses
  • Square is a Rectangle
  • Clothing Store
  • Inheritance Badge

6.14 Class Design and Abstract Classes

  • Class Design and Abstract Classes
  • Quiz: Class Design
  • The Shape Hierarchy
  • Classes for Dessert
  • Finding The Perimeters

6.15 Polymorphism

  • Polymorphism
  • Quiz: Polymorphism
  • Animal Sounds
  • Shape Areas
  • Fun with Solids

6.16 Object Superclass

  • Object Superclass
  • Quiz: Object Superclass
  • Default Values
  • Override toString
  • Override equals
  • +4 more

6.17 Interfaces

  • Interfaces
  • Quiz: Interfaces
  • Comparable Interface
  • Summable Interface
  • Fraction is Comparable
  • +2 more

6.18 Composition

  • Composition vs. Inheritance
  • Composition
  • House and Room
  • Library System

6.19 Ethical and Social Implications of Computing

  • Implications of Computing Systems
  • Computing and Your Life
  • Quiz: Ethical and Social Impact
  • ACM General Ethical Principles
  • ACM General Ethical Principles
  • +4 more

6.20 Classes and Object-Oriented Programming Quiz

  • Classes and Object-Oriented Programming Quiz

Courses that include this module