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Handcrafted Notes for Java Developers

PDF notes crafted from 300+ YouTube videos. Buy once, download anytime from your dashboard. No subscriptions. No expiry.

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Java Core Mastery Notes

Complete Java fundamentals β€” OOP, Collections, Generics, Streams, Lambda, Multithreading. Perfect for beginners and interview prep.

OOPCollectionsStreamsLambdaMultithreading
πŸ“Š Beginner β†’ Intermediate
βœ“95+ pages PDF
βœ“Code examples
βœ“Interview Q&A
βœ“Lifetime access
β‚Ή149β‚Ή299
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Best Seller
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Spring Boot Complete Notes

REST API, Spring Security, JPA/Hibernate, Unit Testing, Docker basics, and deployment strategies. Production-ready knowledge.

REST APISpring SecurityJPATestingDocker
πŸ“Š Intermediate
βœ“80+ pages PDF
βœ“Spring Boot 3.x
βœ“Real project examples
βœ“Lifetime access
β‚Ή199β‚Ή399
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Advanced
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Microservices Architecture Notes

Eureka, API Gateway, Feign Client, Circuit Breaker, Kafka messaging, and Docker Compose. Build scalable systems.

EurekaAPI GatewayFeignKafkaDocker Compose
πŸ“Š Advanced
βœ“70+ pages PDF
βœ“Architecture diagrams
βœ“Patterns guide
βœ“Lifetime access
β‚Ή249β‚Ή499
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Most Popular
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Java Interview Q&A (200 Questions)

Hand-picked top 200 Java interview questions with detailed answers. Organised by topic and company (Amazon, TCS, Infosys, Flipkart).

Core JavaSpring BootMicroservicesDSASystem Design
πŸ“Š All Levels
βœ“120+ pages PDF
βœ“200 Q&A pairs
βœ“Company-wise sections
βœ“Lifetime access
β‚Ή299β‚Ή599
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Interview Ready
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System Design Interview Notes

HLD and LLD patterns, design WhatsApp/Uber/Netflix. Covers scalability, databases, caching, load balancing.

HLDLLDScalabilityCachingDatabases
πŸ“Š Intermediate β†’ Advanced
βœ“85+ pages PDF
βœ“System diagrams
βœ“Design patterns
βœ“Lifetime access
β‚Ή249β‚Ή499
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New
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DSA in Java β€” Complete Guide

Arrays, Linked Lists, Trees, Graphs, DP, Sorting β€” all with Java implementations and LeetCode problem mappings.

ArraysTreesGraphsDPSorting
πŸ“Š Beginner β†’ Advanced
βœ“100+ pages PDF
βœ“Java code solutions
βœ“LeetCode mapping
βœ“Lifetime access
β‚Ή199β‚Ή399
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