Java Design Patterns Overview | Creational, Structural & Behavioral

What are design patterns in software engineering, and why do design pattern interview questions still dominate every round? From singleton design pattern java to observer pattern java & strategy pattern java — design patterns in java are essential for cracking java interview questions and answers. In this video, I break down what design patterns actually are, why they were created, and why interviewers still treat them as a must-know topic — whether you're a beginner or an experienced developer. You'll understand the real-world problems they solve and how recognizing patterns helps you write cleaner, more maintainable code. 🔔 NEW PLAYLIST ANNOUNCEMENT — Design Patterns Tutorial I'm launching a dedicated design patterns tutorial playlist that walks you through every major pattern with real Java examples and interview-focused explanations. Here's what's covered: ▸ Creational: Singleton Pattern, Factory Pattern, Abstract Factory Pattern, Builder Pattern, Prototype Pattern ▸ Structural: Adapter Pattern, Proxy Pattern, Decorator Pattern ▸ Behavioral Design Patterns: Strategy Pattern, Observer Pattern,Chain of Responsibility Pattern 🔥 Coming Next: I'm dropping a full video on SOLID Principles in this playlist — the foundation behind good design decisions. We'll cover solid principles interview questions, real violations vs fixes, and how they connect directly to the patterns you'll learn here. If you're preparing for interviews or want to level up your system design thinking — hit subscribe and turn on notifications. 00:00 : Introduction 00:34 : What are Design Patterns? 01:24 : Creational Design Patterns 01:50 : Structural Design Patterns 02:17 : Behavioral Design Patterns 02:45 : SOLID Principles 03:13 : Step-by-Step Video Flow 03:59 : Design Patterns in the AI Era #DesignPatterns #JavaInterview #SOLIDPrinciples #SoftwareEngineering #DesignPatternsJava #JavaInterviewQuestions Instagram : https://www.instagram.com/the.curious_coder #interview #springboot #java