What is design pattern

A design pattern in software engineering is a general, reusable solution to a commonly occurring problem within a given context in software design. It is a template or blueprint that can be applied to solve a specific problem in various situations.

There are several reasons why software developers use design patterns:

• Provide Best Practices: They encapsulate the knowledge and experience of seasoned developers, offering a way to follow established design principles.
• Improve Code Reusability: By using a proven pattern, you can avoid re-inventing the wheel and adapt the solution to your specific needs.
• Enhance Code Maintainability: Well-designed patterns often make code easier to understand and modify, which is important for future maintenance.
• Facilitate Communication: Design patterns provide a common language among developers, making it easier to discuss and collaborate on code design.

Key Points

1. Understanding the problems
   1. Too many parameters
   1. Telescopic constructors
   1. Immutability
   1. Order of initialization

Details:

I. Constructor with long parameter

II. Telescopic Constructor

III. Immutability

IV. Order of Initialization

What we will support:

Complex and large number of parameters

Optional parameters

Immutable parameters

Order of initialization

The memorization of the order is not necessary for user

Builder Object:

Builder Pattern Implementation

Builder Pattern In Project