Object-Oriented Programming in C# (4001)
The Microsoft Object-Oriented Programming in C# (4001) course teaches developers how to apply core OOP principles—abstraction, encapsulation, inheritance, and polymorphism—to build scalable, maintainable applications. Designed for software developers and .NET engineers, it addresses the industry demand for robust code design, with C# ranking among the top 10 most popular programming languages in Stack Overflow’s 2025 Developer Survey.
This course prepares learners for Microsoft Azure Developer Associate and other role-based certifications by reinforcing foundational C# skills. Koenig Solutions delivers official vendor-authorized courseware with 30-day lab access, enabling hands-on mastery of class hierarchies and object interactions, leading to improved application architecture and career advancement in enterprise development.
Training Formats & Pricing
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Course Overview
The Microsoft Object-Oriented Programming in C# (4001) course is designed for developers, software engineers, and aspiring programmers seeking to master the core principles of object-oriented programming using C#. This comprehensive training prepares learners for the foundational C# certification, focusing on real-world application of OOP concepts such as encapsulation, inheritance, polymorphism, and abstraction. Ideal for those pursuing roles as C# Developers, .NET Software Engineers, or Application Architects, this course aligns with industry demands where over 80% of enterprise applications built on the .NET platform rely on strong OOP foundations. With C# consistently ranking among the top 10 most-used programming languages according to Microsoft’s developer surveys, proficiency in its object-oriented capabilities is essential for career advancement in modern software development.
Students engage with key technologies including Visual Studio 2022, .NET 6, C# 10+, and Windows Console applications within a hands-on lab environment that simulates real development workflows. The course features guided labs where students build a fully functional banking system using OOP principles, creating classes like `BankAccount`, `InterestEarningAccount`, and `GiftCardAccount` that demonstrate inheritance and polymorphism. Using the Visual Studio IDE, learners configure constructors, properties, methods, and access modifiers while implementing interfaces and handling exceptions. A capstone project involves extending a base class to model different account types, applying virtual and override methods to customize behavior—mirroring actual scenarios faced by professional .NET developers working on scalable business systems.
This course directly supports preparation for Microsoft’s Foundational C# Certification, an industry-recognized credential that validates core programming skills and enhances employability across global tech markets. Certified professionals report average salary increases of 15–20%, with mid-level C# developers earning between $85,000 and $110,000 annually in North America. Koenig Solutions enhances learning outcomes with Guaranteed-to-Run scheduling and 1-on-1 training options, ensuring personalized attention and flexibility. By mastering object-oriented design patterns and clean code practices in C#, graduates are positioned to advance into senior development roles, contribute to large-scale enterprise solutions, and pursue further specialization in ASP.NET Core, cloud services, or full-stack engineering.
What You'll Learn
Skills You'll Gain
Prerequisites
- Proficiency in C# syntax, including variables, data types, control flow statements (loops and conditionals), and basic operators.
- Experience developing console applications using .NET 8 to build practical skills for this training course.
- Familiarity with the .NET 8 SDK and C# 12 compiler fundamentals for effective code compilation and execution.
- Basic knowledge of procedural programming structures to prepare for advanced class-based architecture.
- Ability to define and implement basic methods and data structures to meet the requirements of this curriculum.
- Familiarity with Visual Studio Code and the C# Dev Kit extension to enhance development efficiency and align with Microsoft’s recommended tools.
Certification Exam
Everything you need to know about the Object-Oriented Programming in C# (4001) certification exam
Course Curriculum
Structured learning with hands-on labs and real-world scenarios
1
Day 1– Mastering Object-Oriented Programming in C# (4001)
2
Day 2– Advanced Encapsulation and Class Design
3
Day 3– Inheritance and Polymorphism Essentials
4
Day 4– Interfaces and Advanced OOP Architecture
5
Day 5– Modern C# Development and Best Practices
What's Included in Your Training
Every enrollment comes packed with resources to maximise your learning and exam success
Exam Preparation Materials
Practice Test Questions (200+)
Certificate of Completion
Post-Training Support (30 days)
Session Recording Access
Free Rescheduling (7+ days notice)
Career Outcomes
of Object-Oriented Programming in C# (4001) certified professionals report career advancement within 6 months
Salary Impact
Average salary increase reported after obtaining the Object-Oriented Programming in C# (4001) certification
*Source: Glassdoor / LinkedIn 2025
Job Roles
- C# Developer
- Software Developer
- Application Developer
- Backend Developer
- Object-Oriented Programmer
- .NET Developer
Companies Hiring
and 5,000+ organizations worldwide seeking Object-Oriented Programming in C# (4001) certified professionals
Course Student Reviews
Real results from IT professionals who trained with Koenig — rated 4.9/5 from 18,400+ verified reviews.
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★★★★★
“Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”
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“The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”
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“As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”
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“SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”
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“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
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“DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”
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“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
AZ-400 Team Training ✓ Verified -
★★★★★
“Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”
AZ-104 Certified ✓ Verified -
★★★★★
“I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”
Enterprise Client ✓ Verified -
★★★★★
“The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”
PL-300 Certified ✓ Verified -
★★★★★
“From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”
AZ-305 Expert ✓ Verified -
★★★★★
“As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”
100+ Learners Trained ✓ Verified -
★★★★★
“SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”
SC-300 Certified ✓ Verified -
★★★★★
“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
AI-102 Certified ✓ Verified -
★★★★★
“DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
AZ-400 Team Training ✓ Verified
-
★★★★★
“Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”
AZ-104 Certified ✓ Verified -
★★★★★
“I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”
Enterprise Client ✓ Verified -
★★★★★
“The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”
PL-300 Certified ✓ Verified -
★★★★★
“Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”
AZ-104 Certified ✓ Verified -
★★★★★
“I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”
Enterprise Client ✓ Verified -
★★★★★
“The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”
PL-300 Certified ✓ Verified
-
★★★★★
“From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”
AZ-305 Expert ✓ Verified -
★★★★★
“As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”
100+ Learners Trained ✓ Verified -
★★★★★
“SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”
SC-300 Certified ✓ Verified -
★★★★★
“From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”
AZ-305 Expert ✓ Verified -
★★★★★
“As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”
100+ Learners Trained ✓ Verified -
★★★★★
“SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”
SC-300 Certified ✓ Verified
-
★★★★★
“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
AI-102 Certified ✓ Verified -
★★★★★
“DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
AZ-400 Team Training ✓ Verified -
★★★★★
“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
AI-102 Certified ✓ Verified -
★★★★★
“DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
AZ-400 Team Training ✓ Verified
Resources
Learn more about Object-Oriented Programming in C# (4001) before you enroll
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