Java Design Patterns from Udemy

The ONLY course that covers the all the important java core and web design patterns.

Sample of the reviews:

The concepts are explained in simple and efficient manner. Its easy to understand and since real world scenarios are used as examples able to better relate and retain the concepts learnt. - suriya n

So far, course seems like a perfect match of what i wanted to learn, and I love the hands on aspect. Looking forward to continuing. Thank you. :- Stacey D McCauley

Amazing info, resources, and very concise and in depth knowledge that I thought would never be in any online video/tutorial as well as the categories of it. I think the Singleton is a bad design pattern, but other than that this course is perfect - Nicholas Powell

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All source code is available for download

Responsive Instructor - All questions answered within 24 hours

Professional video and audio recordings (check the free previews)

Do you have the knowledge of java and want to master java design patterns, then this course is for you.If you are an experienced java developer who wants to fill in any gaps in your knowledge of java design patterns and learn the common design language to communicate with other developers then this course is for you too.

Patterns are reusable solutions to recurring problems arising during software development.This course will introduce you to the important Core(Gang Of Four) and Java EE design patterns.You will understand what each pattern is ,why we need it and then work on implementing it hands on.

The goal of this course is to help you master the concepts of java design patterns,why we need them and implement them from scratch.By the time you finish this course, you will have gained the understanding of Java Design Patterns ,i.e Creational Patterns,Structural Patterns and Behavioral Patterns.You will also learn the Dependency Injection and Inversion Of Control Patterns.You will master the different layers that make up a java EE application and how the design patterns fit in to those layers.You will implement Presentation Layer patterns such as Front Controller ,Model View Controller (MVC) .You will also work with Data Access Object Pattern to connect and work with databases.You will then use all of those together along with business layer patterns to work on a small use-case/project.

What Will I Learn?

Learn what design patterns are and why we need them

Understand and implement the Creational Patterns

Understand and implement the Behavioral Patterns

Understand and implement the Structural Patterns

Use Dependency Injection and Inversion of Control Patterns

Master the Java EE presentation layer patterns

Implement a mini project using the MVC and Business Layer Patterns

All in simple and easy steps

What's inside

Learning objectives

Learn what design patterns are and why we need them
Understand and implement the creational patterns
Understand and implement the behavioral patterns
Understand and implement the structural patterns
Use dependency injection and inversion of control patterns
Master the java ee presentation layer patterns
Implement a mini project using the mvc and business layer patterns
Communicate with other developers through the language of design

Proxy pattern
Prototype pattern
Builder pattern
Facade pattern
All in easy steps
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Learn what design patterns are and why we need them
Understand and implement the creational patterns
Understand and implement the behavioral patterns
Understand and implement the structural patterns
Use dependency injection and inversion of control patterns
Master the java ee presentation layer patterns
Implement a mini project using the mvc and business layer patterns
Communicate with other developers through the language of design
Proxy pattern
Prototype pattern
Builder pattern
Facade pattern
All in easy steps
Show more
Show less

Syllabus

Introduction

Course and Instructor Introduction

Private Course Feedback Link

How to make the best of this course

Slides Used In the Course

Design Pattern Summary/Review Notes

Software Setup

Install Java

Install Spring Tool Suite

Configure JDK in STS

Download the completed projects and umls

Download the Assignment Solutions

Spring Boot Lectures

Basics

What is a pattern

Why Patterns?

Pattern Identification

Pattern Catalog

Java EE Pattern Catalog

Core Patterns

Singleton

Create DAOs and Factories

Singleton UML Class Diagram

Steps

Create a Singleton Class

Test Singleton

Eager Initialization

Handle Multiple Threads

Improve Multi Threading logic

Serialization and Singleton

Handle De-Serialization

Override the clone method

The Reflection Problem

The Enum solution

Factory

Create Factory Of Factories and Test

Factory UML Class Diagram

Implement the Pizza Store Usecase

Create a Test Class

Create a PizzaFactory

Abstract Factory

Abstract Factory UML Class Diagram

Template Method Pattern

Flyweight

Template Method UML Class Diagram

Implement Template Pattern

Test Template Method

Template Method

Adapter

Update the Paint App

Adapter UML

Create WeatherFinder classes

Create the Problem

Create the PaintApp Class

Steps to implement Flyweight

Identify and Extract the state

Create the factory class

UML

Fly Weight Pattern

Command Pattern

Command UML

Implement Command Pattern

Test Command Pattern

Decorator Pattern

Decorator UML Class Diagram

Implement Decorator Pattern

Test Decorator

Inversion Of Control(IOC) pattern

Di and IOC Introduction

Create the project

Create the classes

Implement DI and IOC

Test Dependency Injection

Setter Injection

Constructor Injection

DI and IOC

Java EE Basics

JEE Application Layers and Classes

Why Layers?

Layers and Patterns

Presentation-Tier Patterns

Create the Target Servlet

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 Design Patterns with these activities:

Review Core Java Concepts

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Strengthen your understanding of core Java concepts. This will provide a solid foundation for grasping the design patterns covered in the course.

Browse courses on Object-Oriented Programming

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Review OOP principles like inheritance and polymorphism.
Practice coding basic Java programs.

Read 'Head First Design Patterns'

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Familiarize yourself with design patterns using a beginner-friendly resource. This will make the course material easier to digest.

View Head First JavaScript Programming on Amazon

Show steps

Read the introductory chapters on design principles.
Work through the examples for each design pattern.

Implement a Simple Design Pattern

Show steps

Solidify your understanding by implementing a design pattern from scratch. This hands-on experience will reinforce the theoretical concepts.

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Choose a simple pattern like Singleton or Factory.
Write the code to implement the pattern in Java.
Test your implementation thoroughly.

Four other activities

Expand to see all activities and additional details

Show all seven activities

Create a Design Pattern Cheat Sheet

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Summarize the key aspects of each design pattern. This will serve as a quick reference guide during and after the course.

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For each pattern, note its intent, structure, and participants.
Include a simple code example for each pattern.

Refactor Existing Code with Patterns

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Apply design patterns to improve existing code. This will help you recognize opportunities to use patterns in real-world scenarios.

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Find a piece of code that could benefit from a pattern.
Refactor the code to incorporate the chosen pattern.
Compare the original and refactored code.

Explore 'Design Patterns: Elements of Reusable Object-Oriented Software'

Show steps

Deepen your understanding of design patterns with a classic text. This book provides a more formal and in-depth treatment of the subject.

View Design Patterns on Amazon

Show steps

Read the introductory chapters on design principles.
Study the detailed descriptions of each pattern.

Contribute to a Java Project Using Design Patterns

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Gain practical experience by contributing to an open-source project. This will expose you to real-world applications of design patterns.

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Find an open-source Java project on GitHub.
Identify areas where you can contribute using design patterns.
Submit your contributions to the project.

Career center

Learners who complete Java Design Patterns will develop knowledge and skills that may be useful to these careers:

Java Developer

Java developers write, test, and debug Java code, and a strong understanding of design patterns is essential for creating high-quality software. This Java Design Patterns course directly addresses this need, providing in-depth knowledge of core (Gang of Four) and Java EE design patterns. A Java developer benefits from learning when and how to apply patterns such as Singleton, Factory, and others covered in the course. Implementing the mini-project using MVC and business layer patterns may provide practical experience in applying these patterns in a real-world scenario. The course may also help you fill in any knowledge gaps within Java.

See salaries and explore the career path for Java Developer

Application Developer

Application developers create and maintain software applications, and this Java Design Patterns course directly relates to their day-to-day work. The course covers essential design patterns like Creational, Structural, and Behavioral, which are critical for building robust and maintainable applications. Understanding these patterns allows an application developer to write cleaner, more reusable code. Furthermore, the course's coverage of Java EE Presentation Layer patterns and its mini-project implementing MVC can provide practical experience, potentially making you a more effective and efficient application developer. By understanding design patterns, a developer gains the ability to communicate effectively with other developers, using a common design language.

See salaries and explore the career path for Application Developer

Software Engineer

Software engineers design, develop, and test software systems, and a strong grasp of design patterns is crucial for building efficient and maintainable code. This Java Design Patterns course offers a comprehensive exploration of core and Java EE design patterns. A software engineer can use concepts like Creational, Structural, and Behavioral patterns covered to make informed design choices. The course's practical exercises and mini-project implementing MVC provide hands-on experience, potentially reinforcing theoretical concepts. The course may help you become proficient in the language of design, enabling you to communicate your ideas to other engineers.

See salaries and explore the career path for Software Engineer

Backend Developer

Backend developers focus on the server-side logic and databases of web applications. A strong understanding of design patterns is crucial for building efficient and scalable backends. This Java Design Patterns course provides an in-depth exploration of core and Java EE design patterns. A backend developer may especially benefit from the course's coverage of patterns relevant to data access and business logic, such as Data Access Object. The implementation of the mini-project utilizing MVC and business layer patterns may help to solidify your understanding of these patterns in a practical setting.

See salaries and explore the career path for Backend Developer

Software Architect

A software architect designs the high-level structure of software systems. This course on Java Design Patterns helps you understand common solutions to recurring software design problems. Understanding Creational, Structural, and Behavioral patterns, like those taught in the course, helps a software architect make informed decisions about system design. Knowledge of Java EE presentation layer patterns, also covered in the course, may contribute to your understanding of enterprise application development, potentially leading to better architectural designs. The course's mini-project utilizing MVC and business layer patterns may provide hands-on experience.

See salaries and explore the career path for Software Architect

Full-Stack Developer

Full stack developers work on both the front-end and back-end of web applications, and a solid understanding of design patterns is essential for building scalable and maintainable systems. This Java Design Patterns course provides valuable insights into both core and Java EE design patterns. A full stack developer may find the course's coverage of presentation layer patterns, such as Front Controller and MVC, particularly useful for building robust user interfaces. The mini-project implementing MVC may give practical experience in applying these patterns in a full stack context.

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Technical Lead

Technical leads guide development teams, making key technical decisions and ensuring code quality. This Java Design Patterns course may help a technical lead to guide their teams in adopting best practices and using design patterns effectively. By understanding Creational, Structural, and Behavioral patterns, a technical lead helps ensure consistency and maintainability across a project. The course's coverage of Java EE Presentation Layer patterns and the mini-project implementing MVC may allow a technical lead to guide their team in building robust and scalable web applications. Understanding design patterns helps you communicate efficiently with other developers.

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Software Consultant

Software consultants advise clients on technology solutions and best practices, and a deep understanding of design patterns is valuable for recommending effective solutions. This Java Design Patterns course provides a solid foundation in core and Java EE design patterns. A software consultant may use this knowledge to assess existing systems, identify areas for improvement, and recommend appropriate design patterns to address specific challenges. The course's broad coverage of patterns, from Creational to Behavioral, may enable a consultant to provide well-informed recommendations across different aspects of software development. Consultants must be able to speak about design patterns, and the course helps you to learn the language of design.

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Solution Architect

Solution architects design and implement specific technology solutions to address business problems. This Java Design Patterns course may help a solution architect make informed decisions about system design and implementation. The course may help a solution architect understand the trade-offs associated with different design patterns. The course may provide concrete examples of how these patterns can be applied in real-world scenarios. The course's coverage of Java EE patterns and the implementation of the mini-project utilizing MVC can provide valuable insights into system design and development. This role typically requires a master's degree.

See salaries and explore the career path for Solution Architect

Enterprise Architect

Enterprise architects align IT strategy with business goals, often working with complex, large-scale systems where design patterns play a vital role. This Java Design Patterns course, while focused on Java, introduces the core concepts of design patterns applicable across various technologies. An enterprise architect may benefit from understanding the rationale behind different patterns and their application in solving recurring problems. While this course does not delve into the strategic aspects of enterprise architecture, the knowledge of Java EE patterns and the implementation of the mini-project utilizing MVC can provide valuable insights into system design and development. The course may provide a foundational understanding of design patterns. This role typically requires a master's degree.

See salaries and explore the career path for Enterprise Architect

System Analyst

System analysts analyze an organization's systems and processes and recommend ways to improve efficiency and effectiveness. This Java Design Patterns course may provide a system analyst with a deeper understanding of software design principles, allowing them to better assess existing systems and identify potential areas for improvement. The course's coverage of different design patterns may give a system analyst a broader perspective on how software can be structured to meet specific business needs. The mini-project can show how patterns can be applied to a business use-case.

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Data Architect

Data architects design and manage an organization's data infrastructure. This Java Design Patterns course may provide a data architect with a broader understanding of software design principles. This may help a data architect to better collaborate with software developers and understand how data is accessed and manipulated within applications. While the course does not focus specifically on data architecture, the knowledge of patterns like Data Access Object may be relevant to designing efficient and scalable data access layers. You may improve your understanding of how systems are built.

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Mobile Application Developer

Mobile application developers create applications for smartphones and tablets. This course may be relevant to a mobile application developer, as it introduces design patterns that can be applied to mobile app development. While the course focuses on Java, the underlying design principles are transferable to other mobile development platforms. The course may help a mobile developer to write cleaner, more maintainable code. You may improve your understanding of how larger systems are built.

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Quality Assurance Engineer

Quality assurance engineers test software to ensure it meets quality standards. This Java Design Patterns course may provide a quality assurance engineer with a better understanding of software design principles. This may allow them to create more effective test cases and identify potential defects in the code. While this course does not directly teach testing techniques, the knowledge of design patterns can help QA engineers understand the structure of the code they are testing and identify potential weaknesses. You may improve your understanding of how software is built.

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Database Administrator

Database administrators manage and maintain databases, ensuring data integrity and availability. This Java Design Patterns course may provide a database administrator with a broader understanding of how applications interact with databases. This understanding may help them to optimize database performance and troubleshoot issues. While the course doesn't focus specifically on database administration, the Data Access Object pattern covered may be relevant to understanding how data is accessed from Java applications. You may improve your understanding of how databases are used in applications.

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Java Design Patterns

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