Singly Linked List in Java From Scratch | Step-by-Step Implementation + Intuition

You know what a Linked List is. Now let's actually build one from scratch in Java. 🚀 In this video, we take the theory from the previous lesson and turn it into working Java code — step by step, without blindly copying an implementation. We'll build a Singly Linked List from the ground up and understand why every line of code is needed. 🧠 What you'll learn 🔹 How to create a Node in Java 🔹 How data and next work together 🔹 How to create and initialize the head 🔹 How nodes are connected using references 🔹 How to traverse a Linked List 🔹 How to insert elements 🔹 How to delete elements 🔹 How to handle the beginning and end of the list 🔹 How to think about each operation before writing the code 🔹 Time complexity of the operations 💡 The goal of this video I don't want you to memorize a Linked List implementation. I want you to be able to open a blank Java file and think: “I know what a Node is.” “I know what HEAD represents.” “I know how NEXT connects the nodes.” “Now I can build the implementation myself.” That's the difference between memorizing code and understanding code. This is the implementation part of the DSA series where we follow: THEORY → INTUITION → IMPLEMENTATION → PROBLEMS 📚 DSA Series Roadmap ✅ Linked List — Theory & Intuition 🔨 Linked List — Implementation in Java ➡️ Linked List — Problems & Patterns ➡️ Stack ➡️ Queue ➡️ Heap If you're learning DSA from scratch, preparing for college exams, LeetCode, coding interviews or placements, this series is designed to help you understand the concepts instead of just memorizing solutions. Subscribe and join the journey. 🚀 #DSA #LinkedList #Java #SinglyLinkedList #DataStructures #DSAinJava #JavaProgramming #LeetCode #CodingInterview #Programming