Java Object-Oriented Programming

Course details

Are you familiar with Java but want to get the most out of your Java programs? In this course, Kathryn Hodge teaches the basics of object-oriented programming in Java, so you can write code that’s secure, scalable, and easier to troubleshoot. Kathryn begins by showing how object-oriented principles are embedded into the Java language from the first code file you create. She looks at how classes, instances, and constructors embody the idea of representing real-life objects in code. Kathryn not only shows how to apply object-oriented principles in your own programs, but also explains how Java leverages these principles behind the scenes. While many resources about object-oriented programming focus on abstract examples, the goal of this course is to get away from the abstract and focus more on practical examples of these principles in Java. Along with deep dives into the source code, this course also provides several challenges and solutions to help you apply what you’ve learned.

Concepts

0. Introduction

01 - Why learn about object-oriented programming in Java
02 - What is object orientation

1. Classes and Objects in Java

03 - Using classes as blueprints
04 - Building objects with a constructor
05 - Using concrete instances for application logic
06 - Understanding the difference between class and instance members
07 - Exploring a built-in Java class
08 - Challenge - Build an employee class
09 - Solution - Build an employee class

2. Encapsulation in Java

10 - What is encapsulation
11 - Discovering access modifiers
12 - Implementing encapsulation with access modifiers
13 - Exploring encapsulation in Java string class
14 - Challenge - Banking application
15 - Solution - Banking application

3. Inheritance in Java

16 - What is inheritance
17 - Leveraging different types of inheritance
18 - Using inheritance to reduce code duplication
19 - Discovering inheritance in foundational Java classes
20 - Challenge - Reduce redundant code with inheritance
21 - Solution - Reduce redundant code with inheritance

4. Polymorphism in Java

22 - What is polymorphism
23 - Writing reusable algorithms with runtime polymorphism
24 - Exploring different forms in a single object
25 - Accessing specific object forms with instanceof
26 - Writing flexible code with compile-time polymorphism
27 - Exploring how built-in Java classes use polymorphism
28 - Challenge - Reduce complexity with polymorphism
29 - Solution - Reduce complexity with polymorphism

5. Abstraction in Java

30 - What is abstraction
31 - Using abstract classes in Java to reduce code complexity
32 - Using interfaces in Java to provide conformity
33 - Discovering abstraction in Java source code
34 - Challenge - Leverage abstraction to write simpler applications
35 - Solution - Leverage abstraction to write simpler applications

Conclusion

36 - Identifying code smells and anti-patterns in OOP code
37 - Next steps

Java Object-Oriented Programming

Authors

Kathryn Hodge