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Andrejs Doronins

Knowing design patterns is an essential skill in software craftsmanship. But how do you go about learning them when there are so many? Watch this course to quickly learn how to refactor messy code to the most useful and frequently used patterns.

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Knowing design patterns is an essential skill in software craftsmanship. But how do you go about learning them when there are so many? Watch this course to quickly learn how to refactor messy code to the most useful and frequently used patterns.

Challenges arise as software grows in size and complexity, and design patterns offer common solutions to them. In this course, Java: Refactoring to Design Patterns, you will gain the ability to convert typical procedural code into the most useful and frequently used design patterns. First, you will learn how to encapsulate object creation with so-called factories that greatly reduce future maintenance cost. Next, you will discover how to get rid of long if-else statements and reduce conditional complexity using behavioral patterns. Finally, you will explore how structural patterns help you better organize your code. When you are finished with this course, you will have the skills to write code that is organized, maintainable, and pleasant to work with.

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What's inside

Syllabus

Course Overview
Why and When to Refactor to Patterns
Better Object Creation with Factories
Eliminating Conditional Complexity
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Improving Interfaces with Wrappers

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Explores design patterns essential to software craftsmanship
Facilitates refactoring of messy code into useful patterns
Taught by Andrejs Doronins, a recognized industry expert
Suitable for learners with a background in Java programming

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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 Java: Refactoring to Design Patterns with these activities:
Read 'Design Patterns Explained'
Review the basic design principles and recurring problems in computer system designs, while practicing some general 'rules of thumb' for avoiding common design traps.
Show steps
  • Read Chapter 1 - What is a Design Pattern?
  • Read Chapter 2 - Creational Patterns
  • Read Chapter 3 - Behavioral Patterns
  • Read Chapter 4 - Structural Patterns
Organize Course Materials and Create a Study Guide
Organize notes, assignments, and quizzes to enhance the learning process
Show steps
  • Gather all course materials, including notes, assignments, and quizzes.
  • Review the materials and identify key concepts and topics.
  • Create a study guide that summarizes the key concepts and topics.
Attend a Workshop on Design Patterns
Attend a structured session with expert guidance to explore design patterns in depth.
Browse courses on Design Patterns
Show steps
  • Research and identify a workshop on design patterns.
  • Register for the workshop and attend all sessions.
  • Participate actively in discussions and hands-on exercises.
Five other activities
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Show all eight activities
Implement the Factory Pattern in a Java Application
Work through a real-world example to understand how to create different types of objects based on input
Show steps
  • Create a Java application with a class that implements the Factory interface.
  • Create different subclasses that implement the Product interface.
  • Use the Factory class to create instances of the Product subclasses.
  • Test the Factory class to ensure it creates the correct Product subclasses.
Explore Design Patterns in Spring Framework
Understand how design patterns are implemented in a popular Java framework to enhance practical knowledge.
Browse courses on Design Patterns
Show steps
  • Find tutorials or documentation on design patterns in Spring Framework.
  • Follow the tutorials and implement the design patterns in your own Spring projects.
Solve Coding Problems Involving Design Patterns
Use coding problems to solidify the understanding and application of design pattern principles in Java.
Browse courses on Design Patterns
Show steps
  • Identify a coding problem that involves design patterns.
  • Analyze the problem and determine which design patterns are applicable.
  • Implement the design pattern in the solution.
  • Test the solution to ensure it meets the requirements.
Participate in a Coding Competition Involving Design Patterns
Test your design pattern skills and learn from others' solutions in a competitive environment.
Browse courses on Design Patterns
Show steps
  • Identify a coding competition that involves design patterns.
  • Register for the competition and study the rules and guidelines.
  • Develop solutions to the competition problems using design patterns.
  • Submit your solutions and review the solutions of other participants.
Mentor a Junior Developer on Design Patterns
By mentoring, not only reinforce your own understanding but also gain different perspectives on the application of design patterns.
Browse courses on Design Patterns
Show steps
  • Identify a junior developer who is interested in learning about design patterns.
  • Develop a plan for mentoring the developer, including topics to cover and resources to use.
  • Meet with the developer regularly to discuss design patterns.
  • Provide guidance and support to the developer as they apply design patterns in their own projects.

Career center

Learners who complete Java: Refactoring to Design Patterns will develop knowledge and skills that may be useful to these careers:
Software Architect
Software Architects ensure that software is stable and reliable, and that it operates efficiently and securely. They use design patterns as reusable solutions to commonly occurring software development problems. This course can help Software Architects become more efficient by teaching them how to refactor messy code to adhere to frequently-used design patterns.
Senior Software Engineer
Senior Software Engineers are responsible for leading teams and mentoring junior engineers. They play a key role in shaping the architecture and design of software systems, and they need to be familiar with design patterns in order to make informed decisions about how to implement them. This course helps build a foundation in design patterns, which can be useful for Senior Software Engineers as they progress in their careers.
Software Consultant
Software Consultants are responsible for providing expert advice and guidance on software development projects. To do so effectively, they need a broad understanding of design patterns and the reasons for their use. This course offers an introduction to the most useful and frequently used design patterns, which can be a valuable resource for Software Consultants.
Software Designer
Software Designers are responsible for creating software blueprints using a variety of tools and techniques, such as UML diagrams and flowcharts. To create efficient and effective blueprints, Software Designers must be able to apply design patterns as they work. This course provides a practical introduction to the most useful and frequently used design patterns, which may be helpful for Software Designers.
Systems Analyst
Systems Analysts are responsible for studying existing business systems and procedures, and then designing new systems that improve efficiency and productivity. They need to be able to understand and apply design patterns in order to create robust and maintainable systems. This course provides an introduction to the most useful and frequently used design patterns, which can be useful for Systems Analysts as they develop solutions for their clients.
Database Administrator
Database Administrators are responsible for managing and maintaining databases, ensuring that they are available, reliable, and secure. They need a strong understanding of design patterns in order to implement and administer databases effectively. This course introduces the basic concepts of design patterns, which may be beneficial to Database Administrators as they work to improve the performance and reliability of their databases.
Software Tester
Software Testers ensure that software meets the requirements of its users. They need to be familiar with design patterns in order to understand the structure of the software they are testing. This course provides an introduction to the most useful and frequently used design patterns, which can be a useful resource for Software Testers as they develop test cases.
Technical Writer
Technical Writers are responsible for creating documentation that explains how to use software and hardware products. They need to be familiar with design patterns in order to understand the structure and function of the products they are documenting. This course may be helpful for Technical Writers who wish to develop a deeper understanding of design patterns, which can be useful for writing clear and concise documentation.
Product Manager
Product Managers are responsible for defining the vision and roadmap for a software product. They need to be familiar with design patterns in order to make informed decisions about the product's architecture and design. This course introduces the basic concepts of design patterns, which may be helpful for Product Managers as they work to develop and improve their products.
Web Developer
Web Developers are responsible for designing and developing websites and web applications. They need to be familiar with design patterns in order to create user interfaces that are both efficient and effective. This course introduces the basic concepts of design patterns, which may be helpful for Web Developers as they work to improve the usability and performance of their websites.
System Administrator
System Administrators are responsible for managing and maintaining computer systems and networks. They need to be familiar with design patterns in order to implement and administer systems effectively. This course may be helpful for System Administrators who wish to develop a deeper understanding of design patterns, which can be useful for optimizing system performance and reliability.
IT Analyst
IT Analysts are responsible for providing technical support to users and diagnosing and resolving computer problems. They need to be familiar with design patterns in order to understand the structure and function of the software and hardware they are supporting. This course may be helpful for IT Analysts who wish to develop a deeper understanding of design patterns, which can be useful for providing more effective support to their clients.
Project Manager
Project Managers are responsible for planning, executing, and closing software development projects. They need to be familiar with design patterns in order to make informed decisions about the project's architecture and design. This course introduces the basic concepts of design patterns, which may be helpful for Project Managers as they work to manage and deliver successful software projects.
Computer Programmer
Computer Programmers are responsible for writing and maintaining code. They need to be familiar with design patterns in order to write code that is efficient, maintainable, and reusable. This course introduces the basic concepts of design patterns, which may be helpful for Computer Programmers as they work to improve the quality of their code.
Data Scientist
Data Scientists are responsible for collecting, analyzing, and interpreting data. They need to be familiar with design patterns in order to develop efficient and effective data analysis algorithms. This course introduces the basic concepts of design patterns, which may be helpful for Data Scientists as they work to develop new and innovative ways to analyze data.

Reading list

We've selected 11 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 Java: Refactoring to Design Patterns.
Classic work on object-oriented design. It provides a comprehensive overview of design patterns and how to apply them to object-oriented software development.
This is the definitive book on design patterns. It provides a comprehensive catalog of patterns and explains how to use them effectively. It must-read for anyone who wants to learn more about design patterns.
Classic work on Java programming. It provides a comprehensive overview of the Java programming language and how to use it effectively.
Shows how to use design patterns to create agile software. It provides a practical guide to using design patterns in agile development environments.
Comprehensive guide to design patterns in Java. It provides a detailed explanation of each pattern and includes numerous examples.
Comprehensive guide to design patterns in Java. It provides a detailed explanation of each pattern and includes numerous examples.
Great introduction to Java programming. It uses a conversational style and lots of examples to make learning about Java easy and fun.
Great introduction to Java programming. It provides a clear and concise explanation of the Java programming language and how to use it.
Great introduction to Java programming. It is written in a clear and concise style and is easy to follow.

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