jdfive

Syllabus

Read in order — foundations first, then concurrency. Pair withSOLID,Design Patterns, andLLD Interview Questions.

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Foundations

Foundations

How LLD interviews work, the delivery framework, and the OOP building blocks that show up most often.

  1. 1Course Overview
  2. 2Delivery Framework
  3. 3OOP Building Blocks
  4. 4Design Principles
  5. 5Patterns That Show Up

Concurrency

Concurrency themes

Correctness, coordination, and scarcity — the concurrency themes interviewers probe.

  1. 6Concurrency Primer
  2. 7Thread Correctness
  3. 8Resource Pools
  4. 9Coordination Patterns

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SOLID Principles

SRP through DIP with wrong-vs-right Java — how the five compose in interview answers.

Open SOLID Principles

Next

Design Patterns

GoF patterns with wrong-vs-right examples — Strategy, Factory, Observer, and more.

Open Design Patterns

Next

LLD Interview Questions

Practice end-to-end object designs interviewers ask — parking lot through movie booking.

Open LLD Interview Questions