06-01-DP-Handson Design Principles and Patterns Cognizant
In this post we are going to cover the Design Principles and Patterns 06-01-DP-Handson solution asked in Cognizant.
Objectives
- Demonstrate code modifications are done for any 2 of the SOLID principles
- Modify code to implement Single responsibility, Interface segregation
Refactor code to follow SRP, ISP of SOLID principles
Please download the application ‘SOLID Design Principles’ under Reference folder. This will be refactored to follow Single responsibility and Interface segregation principles
A console application on Phone order and repair is provided. Refactor the application to follow
- Single responsibility of the class. Go through, analyze the distinct functionalities of the application. Refactor the application accordingly.
- Interface segregation. Go through, analyze if the current interface can be split to follow the principle
Note: An example of Dependency Injection principle
There is a folder in the application “DependencyInjection”. This folder has an example of the implementation of dependency injection.
There is an IPhone class that contains abstract methods. Classes Redmi7 and SamsungNote implement the methods as per the IPhone interface.
The class ProcessPhoneRepair has a method RepairSteps. It contains the steps followed to repair a phone. It takes in a parameter of any phone object that implements the IPhone interface.
This way the method is independent that concentrates ONLY on the process and it becomes the responsibility of the caller to send the appropriate dependency to be used.
Zip File is given below, Click on download and submit directly in tekstac GenC platform.
