Working with Classes and Interfaces in Java

By Jim Wilson
This course provides you with everything you need to know to begin working with Java’s rich type system and serves as a strong foundation for all Java-based development environments including client-based, server-side, Android, and big data.
Play course overview
Course info
Rating
(20)
Level
Beginner
Updated
May 21, 2020
Duration
4h 45m
Table of contents
Course Overview
Course Overview 1m
Understanding Java Classes and Objects
Creating an Array of Classes 5m Declaring Classes 4m Using the MathEquation Class 4m Declaring the MathEquation Class 5m Field Accessors and Mutators 3m Introduction 1m Summary 3m Using Classes 5m Special References: this and null 4m Encapsulation and Access Modifiers 5m
Implementing Class Constructors and Initializers
Field Initializers 2m Constructor Visibility 3m Summary 2m Introduction 1m Class Initial State 2m Initialization Blocks 6m Constructors 5m Constructor Chaining 4m Adding Constructors to MathEquation 5m
Using Static Members
Summary 2m Using Static Members 3m Enhancing MathEquation with Static Members 4m Introduction 1m Static Imports 3m Static Members 3m Static Initializers 3m
A Closer Look at Methods
Changes to Objects Passed as Parameters 4m Variable Number of Parameters 5m Method Overloading Examples 4m Matching Method Calls to Overloads 3m Summary 2m Using Method Overloading in CalcEngine 7m Introduction 1m Overloading 2m Passing Objects as Parameters 4m
Class Inheritance
Getting Started with Inheritance 3m Summary 3m Introduction 2m References to Derived Class Instances 3m Improving CalcEngine with Inheritance 7m Object References 5m Equality 7m Object Class 2m Field Hiding 4m Method Overriding 4m
More About Inheritance
Implementing Abstract Classes and Constructor Inheritance 5m Summary 3m Inheritance and Constructors 7m Requiring Inheritance and Method Overriding 5m Introduction 1m Preventing Inheritance and Method Overriding 3m Special Reference: super 5m Using Constructor Inheritance in CalcEngine 2m
Working with Enums
Summary 2m Relative Comparisons and Common Methods 4m Enum Types Are Classes 5m Representing Math Operations as Enums 4m Conditional Logic 4m Introduction 1m Processing Interactive Input in CalcEngine 5m
Creating Abstract Relationships with Interfaces
Summary 3m Generic Interfaces 2m A New Implementation of the Interface 3m Adding and Implementing an Interface in CalcEngine 5m Declaring an Interface 2m Introduction 2m Adding a Default Method to an Interface 3m Implementing Multiple Interfaces 6m Understanding Interfaces 4m The Comparable Interface 6m Using the Interface in CalcEngine 4m
Nested Types and Anonymous Classes
Accessing a Nested Type 2m Nesting Types for Naming Scope 4m Using Anonymous Classes 6m Summary 3m Inner Classes 5m Anonymous Classes 2m Introduction 3m
Description
Course info
Rating
(20)
Level
Beginner
Updated
May 21, 2020
Duration
4h 45m
Description

Java is one of the most popular and widely-used programming languages in the world. It is supported by billions of devices. Whether you are interested in client-based, server-side, Android, or big data development, understanding how to program in Java is a critical part of being successful. Java is a multiparadigm language with rich object-oriented features. In this course, Working with Classes and Interfaces in Java, you will learn to how to work effectively with the core of the Java type system: classes and interfaces. First, you will learn how to implement a class including class constructors, fields, getters/setters, and polymorphic methods. Next, you will explore class inheritance, method overloading, and abstract classes. Finally, you will discover how to work with Enums, interfaces, nested types, and anonymous classes. When you are finished with this course, you will have the foundational knowledge of working with classes and interfaces that will enable you to become a successful Java programmer.

About the author
Jim Wilson
About the author

Jim Wilson is president of JW Hedgehog, Inc., a consulting firm specializing in solutions for the Android, iOS, and Microsoft platforms. Jim has over 30 years of software engineering experience, with the past 15 years heavily focused on creating mobile device and location-based solutions.

More from the author
Getting Started with Programming in Java
Beginner
4h 42m
Feb 13, 2020
Working with Android Tools and Testing
Beginner
2h 50m
Oct 2, 2019
More courses by Jim Wilson
Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
[Autogenerated] Hi, everyone. My name is Jim Wilson. Welcome to my course. Working classes and their faces in Java Imagine partner of J Deviate LoC have had the good fortune to have been a professional software developer for over 35 years. Hey, did you know the job? It continues to be with the most sought after programming language skills. Job is used to develop everything from smartphone APS, toe websites, the service I processes to the many smart device features that make up the Internet of things. In addition, a recent survey listed Java. It's one of the five most important skills for data scientists and big data processing. To work effectively in any of these environments, you need to understand. I work with jobs, corps, optical features, classes and interface, and that's exactly what you'll learn in this course. So in the major topics we cover include declaring and using classes, constructors and initialize er's class inheritance, declaring in implementing interfaces, nested types and anonymous classes. By the end of this course, be ready to begin working in any of the many environments that rely on job before beginning. This course should already be familiar with the basics of the job for coming line. I hope you'll join me to continue building our Java programming skills with course working with classes in their faces in Java app floral site.

You're the smartest person in the room

PROVE IT

Your team won't just close the skills gap

THEY'LL HURDLE IT