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Master OOP & Design Patterns with Adaptive AI.
Master OOP & Design Patterns across 22 patterns - Four OOP Pillars, SOLID Principles, Creational Design Patterns and 2 more - guided by Leyaa's adaptive intelligence.
5Parts
22Patterns
5hEst. duration
OOP & Design Patterns Course
5 parts
Four OOP Pillars
4 patterns
SOLID Principles
4 patterns
Creational Design Patterns
3 patterns
Structural & Behavioural Design Patterns
7 patterns
OOP Internals & LLD Design Problems
4 patterns
✦ Course Structure
OOP & Design Patterns in 5 Parts
Work through the parts in order - each one builds on the last.
Part 1: Four OOP Pillars
Covers Abstraction - Abstract Class vs Interface - When to Use Which and 3 more patterns.
4Patterns
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Part 2: SOLID Principles
Covers Interface Segregation & Dependency Inversion - Fat Interfaces & IoC and 3 more patterns.
4Patterns
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Part 3: Creational Design Patterns
Covers Factory vs Abstract Factory vs Builder - When to Use Each and 2 more patterns.
3Patterns
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Part 4: Structural & Behavioural Design Patterns
Covers Adapter vs Facade vs Proxy - Structural Pattern Comparison and 6 more patterns.
7Patterns
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Part 5: OOP Internals & LLD Design Problems
Covers Composition vs Inheritance - Favour Composition, Why & When and 3 more patterns.
4Patterns
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Curriculum
Everything You'll Learn
Explore every pattern in the course.

OOP & Design Patterns
5 parts · 22 patternsPart 1: Four OOP Pillars4 patterns
MixedPart 2: SOLID Principles4 patterns
MixedPart 3: Creational Design Patterns3 patterns
MixedPart 4: Structural & Behavioural Design Patterns7 patterns
MixedAdapter vs Facade vs Proxy - Structural Pattern ComparisonCommand Pattern - Undo/Redo, Request Queuing & LoggingDecorator Pattern - Wrapping Behaviour Without SubclassingIterator & Composite Pattern - Traversal AbstractionsObserver Pattern - Event System, Publish-SubscribeStrategy Pattern - Replace Conditionals with PolymorphismTemplate Method Pattern - Define Skeleton, Override Steps
Part 5: OOP Internals & LLD Design Problems4 patterns
MixedNot just a course. A learning intelligence.
Leyaa doesn't just deliver content - it understands where you are, what you need, and how to get you there fastest.
Adaptive Diagnostics
Leyaa identifies which of the 22 patterns you've mastered and which need work - before you waste time on what you already know.
Pattern-Level Precision
Every pattern gets a verdict - Learn, Practice, or Skip - so your study time goes exactly where it counts.
Intelligent Pacing
Leyaa reads your velocity across the whole course and adapts your focus list dynamically, keeping you in the optimal learning zone.
Before & After Visibility
Every assessment creates a snapshot. Retake anytime to see exactly how much you've grown - pattern by pattern.
Learner Autonomy
Leyaa recommends, never restricts. Override any suggestion and explore at your own pace - the system tracks everything regardless.
Clear Learning Path
Four OOP Pillars → SOLID Principles → Creational Design Patterns → and 2 more - a structured journey where each part sets you up perfectly for the next.
OOP & Design Patterns
Ready to master OOP & Design Patterns?
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Start your diagnostic now. Build mastery across all 22 patterns in under 15 minutes.
22 Patterns
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