HLD vs LLD
High-Level Design (HLD) vs Low-Level Design (LLD) Cheatsheet When developing software systems, High-Level Design (HLD) and Low-Level Design (LLD) are two crucial stages in the design process. They serve different…
Rest API Design
Comprehensive Guide to REST API Design Designing a REST API involves multiple considerations to ensure your API is scalable, secure, maintainable, and user-friendly. Below is a detailed guide covering the…
Software Design Patterns
List of All Software Design Patterns Software design patterns are categorized into three main types based on their primary function: Creational, Structural, and Behavioral patterns. Each design pattern provides a…
Multithreading in Java
1. Key Concepts Thread: A lightweight process with its own execution path. Concurrency: Multiple tasks making progress within the same time frame. Parallelism: Tasks running simultaneously on multiple processors. 2.…
New Features in Java
Here’s a list of key features from Java 8 to Java 17 along with code examples for each feature. Java 8 (March 2014) Lambda ExpressionsLambda expressions enable you to pass…
Java Streams
Streams in Java 8 provide a powerful way to work with sequences of data in a declarative and functional style. Below is a comprehensive cheat sheet that covers key concepts,…
Garbage Collection
Java Garbage Collection (GC) Cheatsheet Garbage Collection (GC) in Java is an automatic memory management process that helps reclaim memory used by objects that are no longer referenced. The JVM…
JVM Internals
Here’s a quick cheat sheet on JVM internals, highlighting key concepts and components that are useful for understanding how the JVM works under the hood: 1. Java Virtual Machine Overview…
Software Design Principles
Design Principles Cheatsheet Design principles are foundational guidelines and best practices that help developers create software that is maintainable, scalable, and flexible. Here's a cheatsheet summarizing the key design principles…
System Design Overview
HLD & LLD Requirements - Functional & Non Functional Non functional - Performance, Availability, Security Architecture - Scale, latency, data consistency, caching, throughput Higher level trade offs - gRpc vs…