
Explore why telescoping constructors create boilerplate and maintenance challenges, compare them with the builder pattern, and learn when to use a required x constructor versus a true builder.
Implement the singleton pattern in Java by using a private constructor, a static getInstance method, and a static reference to ensure only one printer object is created.
Explore how a singleton fails under multithreading and how to fix it by synchronizing the getInstance method, ensuring a single instance and thread-safe initialization.
Explore the prototype pattern in Java, focusing on the cloning process to create exact object copies. Learn how shallow copy enables efficient duplication versus recreating objects.
Explore how the factory pattern in Java enables flexible object creation by using a factory class to instantiate various milkshake or animal objects, letting you add new types with ease.
Design patterns provide a template for writing quality code. Knowing which design pattern to use in which scenario can be challenging but will make you a master Java programmer. In this course you will take a deep dive into creational patterns, which can help you create more flexible, reusable objects.
I will be covering the six most popular creational patterns— Builder, Telescoping Constructor, Singleton, Prototype, Factory and Abstract Factory as well as concepts such as multithreading, mutability, inheritance and Java Heap and Stack workings.
I will provide example use cases, complete with implementation instructions and tips for avoiding the unique challenges posed by each pattern also explain how do design patterns work inside Java Heap and Stack Memory.
By the end of this course, you'll be equipped with the knowledge and skills necessary to implement each design patterns in your Java projects.
Learning Objectives:
What are creational design patterns?
How to avoid complex constructors?
Implementing the Builder pattern
Implementing the Telescoping pattern
Understanding similarity between Builder and Telescoping pattern
Best interview answers for Singleton pattern Questions.
Also get a practical idea about the advance concepts such as serialization, cloning, multi-threading and reflection
Problem and Solution of Multi-threading with the Singleton pattern
Implementing the Prototype pattern
Best interview answers for Prototype pattern Questions.
Implementing simple Factory pattern
Implementing Abstract Factory pattern