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SOLID Software Design Principles in Java 8

Learn how to apply the SOLID principles of object-oriented design in Java applications to create loosely coupled systems that are easy to change, test, and maintain.

All software developers know the burden of working with brittle systems that acquire lots of technical debt over time. Those applications are fragile, rigid, and almost impossible to evolve. In this course, SOLID Software Design Principles in Java, you will gain the ability to create applications that are less coupled, easier to test, and more maintainable. First, you will learn why it is better to keep your methods and classes small and focused. Next, you will discover how to effectively extend functionality and create correct relationships between your classes. Finally, you will explore how to design proper interfaces and how to decouple your system by depending on abstractions. When you are finished with this course, you will have the skills and knowledge needed to build robust, maintainable applications in Java.

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What's inside

Syllabus

Course Overview

Saving the Day with SOLID

Understanding the Single Responsibility Principle (SRP)

Evolving Code with the Open Closed Principle (OCP)

Applying Liskov Substitution Principle (LSP)

Modularizing Abstractions with the Interface Segregation Principle (ISP)

Decoupling Components with the Dependency Inversion Principle (DIP)

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Examines SOLID, which is a standard in object-oriented design

Teaches object-oriented design principles, which helps learners create loosely coupled, testable, and maintainable systems

Develops programming and technical skills that are core for Java coding and software development

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in SOLID Software Design Principles in Java 8 with these activities:

Review Core Java Concepts Before Course Begins

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Strengthen your foundation by reviewing core Java concepts such as variables, data types, arrays, and loops before the course starts.

Browse courses on Java Programming

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Review online tutorials or documentation on Java basics
Practice writing simple Java programs to reinforce your understanding

Review Course Materials and Notes Before Class

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Prepare yourself for successful learning by reviewing course materials and notes before each class session.

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Skim through the assigned readings
Review your notes from previous classes
Identify any areas that need further clarification

Join Study Groups or Online Forums to Discuss Course Topics

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Enhance your understanding and engage in deeper discussions by joining study groups or participating in online forums dedicated to course topics.

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Seek out study groups or online forums relevant to the course
Actively participate in discussions and ask questions
Share your knowledge and insights with others

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Follow Tutorials on Dependency Injection with Spring Framework

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Enhance your understanding of dependency injection and its role in implementing SOLID principles by following tutorials on the Spring Framework.

Browse courses on Dependency Injection

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Review the basics of dependency injection and its benefits
Explore the Spring Framework's dependency injection capabilities
Implement dependency injection in your own Java projects

Solve Java Coding Problems on LeetCode

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Sharpen your coding skills and apply SOLID principles by solving Java coding problems on LeetCode.

Browse courses on Coding Challenges

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Select problems that focus on object-oriented design
Analyze the problem statement and identify potential SOLID violations
Implement solutions that adhere to SOLID principles
Review and refine your solutions to further enhance code quality

Read and Review Head First Design Patterns

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Review a classic text to understand and apply the Gang of Four design patterns to increase code flexibility and reusability.

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Read through each pattern and its benefits
Identify real-world applications for each pattern
Discuss the patterns with classmates or colleagues

Contribute to Open Source Projects that Utilize SOLID Principles

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Gain hands-on experience and contribute to the wider development community by participating in open source projects that emphasize SOLID principles.

Browse courses on SOLID Principles

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Identify open source projects that align with your interests and utilize SOLID principles
Review the project's documentation and codebase
Identify areas where you can contribute and follow the project's contribution guidelines
Submit your pull requests and engage with the project's maintainers

Design and Implement a Real-World Java Application

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Solidify your understanding by designing and implementing a practical Java application that adheres to SOLID principles.

Browse courses on Java Development

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Define the purpose and scope of your application
Design the architecture of your application using SOLID principles
Implement your design using Java and best practices
Test and refine your application to ensure it meets requirements

Career center

Learners who complete SOLID Software Design Principles in Java 8 will develop knowledge and skills that may be useful to these careers:

Project Manager

A Project Manager is responsible for planning, organizing, and managing software projects. These professionals work with businesses and organizations of all sizes to ensure that software projects are completed on time and within budget. This course may help you become a Project Manager because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Project Manager

Machine Learning Engineer

A Machine Learning Engineer is responsible for designing, developing, and maintaining machine learning systems and applications. These professionals work with businesses and organizations of all sizes to use machine learning to solve real-world problems. This course may help you become a Machine Learning Engineer because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Machine Learning Engineer

Software Engineer

A Software Engineer is responsible for the design, development, and maintenance of software systems and applications. These professionals work with businesses and organizations of all sizes to create software that meets specific needs. This course may help you become a Software Engineer because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Software Engineer

Web Developer

A Web Developer is responsible for designing, developing, and maintaining websites and web applications. These professionals work with businesses and organizations of all sizes to create websites that are both visually appealing and functional. This course may help you become a Web Developer because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Web Developer

Data Engineer

A Data Engineer is responsible for designing, developing, and maintaining data systems and applications. These professionals work with businesses and organizations of all sizes to collect, store, and analyze data. This course may help you become a Data Engineer because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Data Engineer

Cloud Architect

A Cloud Architect is responsible for designing, developing, and managing cloud computing systems and applications. These professionals work with businesses and organizations of all sizes to migrate their IT infrastructure to the cloud. This course may help you become a Cloud Architect because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Cloud Architect

Information Technology Manager

An Information Technology Manager is responsible for planning, organizing, and managing the IT infrastructure of a business or organization. These professionals work with businesses and organizations of all sizes to ensure that IT systems are running smoothly and efficiently. This course may help you become an Information Technology Manager because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Information Technology Manager

Systems Analyst

A Systems Analyst is responsible for analyzing, designing, and implementing computer systems and applications. These professionals work with businesses and organizations of all sizes to improve their efficiency and productivity. This course may help you become a Systems Analyst because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Systems Analyst

Software Architect

A Software Architect is responsible for designing, developing, and maintaining software systems and applications. These professionals work with businesses and organizations of all sizes to create software that meets specific needs. This course may help you become a Software Architect because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Software Architect

Mobile Developer

A Mobile Developer is responsible for designing, developing, and maintaining mobile applications. These professionals work with businesses and organizations of all sizes to create mobile apps that are both useful and engaging. This course may help you become a Mobile Developer because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Mobile Developer

Chief Technology Officer

A Chief Technology Officer is responsible for leading and managing the IT strategy of a business or organization. These professionals work with businesses and organizations of all sizes to ensure that IT systems are aligned with the business goals. This course may help you become a Chief Technology Officer because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Chief Technology Officer

Chief Information Officer

A Chief Information Officer is responsible for leading and managing the IT strategy of a business or organization. These professionals work with businesses and organizations of all sizes to ensure that IT systems are aligned with the business goals. This course may help you become a Chief Information Officer because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Chief Information Officer

Java Developer

A Java Developer is someone who creates computer programs using the Java programming language. These professionals work with businesses, including technology firms and government agencies, to design, build, and implement software applications. This course may help you become a Java Developer because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Java Developer

Technical Lead

A Technical Lead is responsible for leading and managing a team of software developers. These professionals work with businesses and organizations of all sizes to ensure that software projects are completed on time and within budget. This course may help you become a Technical Lead because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Technical Lead

Enterprise Architect

An Enterprise Architect is responsible for designing, developing, and maintaining enterprise-wide software systems and applications. These professionals work with businesses and organizations of all sizes to create software that meets the needs of the entire organization. This course may help you become an Enterprise Architect because it teaches the SOLID principles of object-oriented design in Java. By learning these principles, you can create loosely coupled systems that are easy to change, test, and maintain.

See salaries and explore the career path for Enterprise Architect

Reading list

We've selected 14 books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in SOLID Software Design Principles in Java 8.

Design Patterns

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Is the definitive guide to design patterns. It provides a comprehensive overview of 23 different patterns, including the SOLID principles. It valuable reference for any software developer.

SOLID Software Design Principles in Java 8

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What's inside

Syllabus

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Activities

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